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Abidi, N., Duplay, J., Elmchaouri, A., Jada, A. and Trabelsi-Ayadi, M. Textile Dye Adsorption Onto Raw Clay: Influence of Clay Surface Properties and Dyeing Additives 2014 J Colloid Sci. Biotechnol
Vol. 3, pp. 98-110 
article  
BibTeX:
@article{Abidi2014,
  author = {Abidi, N. and Duplay, J. and Elmchaouri, A. and Jada, A. and Trabelsi-Ayadi, M},
  title = {Textile Dye Adsorption Onto Raw Clay: Influence of Clay Surface Properties and Dyeing Additives},
  journal = {J Colloid Sci. Biotechnol},
  year = {2014},
  volume = {3},
  pages = {98-110}
}
Achouri, F., Corbel, S., Aboulaich, A., Balan, L., Ghrabi, A., Ben Said, M. and Schneider, R. Aqueous synthesis and enhanced photocatalytic activity of ZnO/Fe2O3 heterostructures 2014 Journal of Physics and Chemistry of Solids
Vol. 75(10), pp. 1081-1087 
article DOI  
Abstract: We report a facile synthesis of ZnO/Fe2O3 heterostructures based on the hydrolysis of FeCl3 in the presence of ZnO nanoparticles. The material structure, composition, and its optical properties have been examined by means of transmission electron microscopy, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and diffuse reflectance UV-visible spectroscopy. Results obtained show that 2.9 nm-sized Fe2O3 nanoparticles produced assemble with ZnO to form ZnO/Fe2O3 heterostructures. We have evaluated the photodegradation performances of ZnO/Fe2O3 materials using salicylic acid under UV-light. ZnO/Fe2O3 heterostructures exhibited enhanced photocatalytic capabilities than commercial ZnO due to the effective electron/hole separation at the interfaces of ZnO/Fe2O3 allowing the enhanced hydroxyl and superoxide radicals production from the heterostructure. (C) 2014 Elsevier Ltd. All rights reserved.
BibTeX:
@article{Achouri2014,
  author = {Achouri, F. and Corbel, S. and Aboulaich, A. and Balan, L. and Ghrabi, A. and Ben Said, M. and Schneider, R.},
  title = {Aqueous synthesis and enhanced photocatalytic activity of ZnO/Fe2O3 heterostructures},
  journal = {Journal of Physics and Chemistry of Solids},
  year = {2014},
  volume = {75},
  number = {10},
  pages = {1081--1087},
  doi = {http://doi.org/10.1016/j.jpcs.2014.05.013}
}
Adohi, B.J.P., Laur, V., Haidar, B. and Brosseau, C. Measurement of the microwave effective permittivity in tensile-strained polyvinylidene difluoride trifluoroethylene filled with graphene 2014 Applied Physics Letters
Vol. 104(8), pp. 082902 
article DOI  
Abstract: We report an interesting effect in the form of a rise (up to 13%) in the permittivity of graphene (GE) filled polyvinylidene difluoride trifluoroethylene (P(VDF-TrFE)) subjected to a small uniaxial deformation (up to 7% in the principal direction). Our findings differ from GE-PVDF homopolymer samples that show a decrease of permittivity upon elongation. We argue that the VDF content which controls the spontaneous polarization has a profound effect on the charge storage through the addition of interface density by the GE phase. (C) 2014 AIP Publishing LLC.
BibTeX:
@article{Adohi2014,
  author = {Adohi, B. J. P. and Laur, V. and Haidar, B. and Brosseau, C.},
  title = {Measurement of the microwave effective permittivity in tensile-strained polyvinylidene difluoride trifluoroethylene filled with graphene},
  journal = {Applied Physics Letters},
  year = {2014},
  volume = {104},
  number = {8},
  pages = {082902},
  doi = {http://doi.org/10.1063/1.4866419}
}
Ait Akbour, R., Jradi, K. and Jada, A. Crystalline Structure, Shape and Size Modifications of CaCO3 Particles by Polyelectrolytes 2014 J. Colloid Sci. Biotechnol
Vol. 3, pp. 38-45 
article  
BibTeX:
@article{AitAkbour2014,
  author = {Ait Akbour, R. and Jradi, K. And Jada, A.},
  title = {Crystalline Structure, Shape and Size Modifications of CaCO3 Particles by Polyelectrolytes},
  journal = {J. Colloid Sci. Biotechnol},
  year = {2014},
  volume = {3},
  pages = {38-45}
}
Almuhamed, S., Khenoussi, N., Bonne, M., Schacher, L., Lebeau, B., Adolphe, D. and Brendlé, J. Electrospinning of PAN nanofibers incorporating SBA-15-type ordered mesoporous silica particles 2014 European Polymer Journal
Vol. 54(0), pp. 71-78 
article URL 
Abstract: The influence of rod-like SBA-15 type ordered mesoporous silica particles, as additives, on the morphology and textural parameters of electrospun polyacrylonitrile (PAN) nanofibers has been studied. PAN charged-webs are prepared by electrospinning of a dispersion of SBA-15 particles in a solution of PAN in DMF. The effect of the applied voltage on the morphology of produced webs has been also investigated. Collected results demonstrate that when electrospinning pristine or charged PAN, the higher the voltage applied, the coarser the fiber is. As a result, sub-micron fibers of PAN charged with SBA-15 particles were obtained. An increase, to some extent, of the specific surface area and pore volume of charged fibers compared to that of pristine electrospun PAN fibers has been also observed. Thermogravimetric analyses reveal that more than 78% of SBA-15 particles are found in the dry fibers. SBA-15 loading rates of 14.3, 15.6 and 27.6 wt.% were achieved. Calculations done to estimate the ratio of accessible pore of SBA-15 particles incorporated within the produced fibers show that more than 50% of accessible pores can be obtained. However, there is a saturated capacity of SBA-15 particles distribution on the surface of the nanofibers beyond 15.6 wt.% loading of SBA-15.This suggests that the ratio of accessible pores within the charged fibers is also limited.
BibTeX:
@article{Almuhamed2014,
  author = {Almuhamed, Sliman and Khenoussi, Nabyl and Bonne, Magali and Schacher, Laurence and Lebeau, Bénédicte and Adolphe, Dominique and Brendlé, Jocelyne},
  title = {Electrospinning of PAN nanofibers incorporating SBA-15-type ordered mesoporous silica particles},
  journal = {European Polymer Journal},
  year = {2014},
  volume = {54},
  number = {0},
  pages = {71--78},
  url = {http://www.sciencedirect.com/science/article/pii/S0014305714000640}
}
Anselme, K. and Bigerelle, M. On the Relation Between Surface Roughness of Metallic Substrates and Adhesion of Human Primary Bone Cells 2014 Scanning
Vol. 36(1), pp. 11-20 
article DOI  
Abstract: Surface characteristics of materials, whether their topography, chemistry, or surface energy, play an essential part in osteoblast adhesion on biomaterials. Thus, the quality of cell adhesion will influence the cell's capacity to proliferate and differentiate in contact with a biomaterial. We have developed for more than ten years numerous studies on the influence of topography and chemistry of metallic substrates on the response of primary human bone cells. The originality of our approach is that contrary to most of other authors, we quantified the adhesion of primary human bone cells on metallic substrates with perfectly characterized surface topography after some hours but also over 21 days. Moreover, we have developed original statistical approaches for characterizing the relation between surface roughness and cell-adhesion parameters. In this article, we will illustrate different studies we did these last ten years concerning the development of a new adhesion parameter, the adhesion power; the correlation between short-term adhesion, long-term adhesion, and proliferation; the influence of roughness organization on cell adhesion and the development of the order parameter; our modeling approach of cell adhesion on surface topography; the relative influence of surface chemistry and topography on cell adhesion and contact angle; the relation between surface features dimensions and cell adhesion. Further, some considerations will be given on the methods for scanning surface topography for cell-adhesion studies. Finally, perspectives will be given to elucidate these intracellular mechanotransduction mechanisms induced by the deformation of cells on model sinusoidal peaks-or-valleys surfaces. SCANNING 36:11-20, 2014. (c) 2012 Wiley Periodicals, Inc.
BibTeX:
@article{Anselme2014,
  author = {Anselme, K. and Bigerelle, M.},
  title = {On the Relation Between Surface Roughness of Metallic Substrates and Adhesion of Human Primary Bone Cells},
  journal = {Scanning},
  year = {2014},
  volume = {36},
  number = {1},
  pages = {11--20},
  doi = {http://doi.org/10.1002/sca.21067}
}
Antsov, M., Dorogin, L., Vlassov, S., Polyakov, B., Vahtrus, M., Mougin, K., Lohmus, R. and Kink, I. Analysis of static friction and elastic forces in a nanowire bent on a flat surface: A comparative study 2014 Tribology International
Vol. 72, pp. 31-34 
article DOI  
Abstract: ZnO nanowires bent to a complex shape and held in place by static friction force from supporting flat surface are investigated experimentally and theoretically. The complex shapes are obtained by bending the nanowires inside a scanning electron microscope with a sharp tip attached to a nanopositioner. Several methods previously described in the literature are applied along with author's original method to calculate the distributed friction force and stored elastic energy in the nanowires from the bending profile. This comparative study evidences the importance of the usage of appropriate models for accurate analysis of the nanowires profile. It is demonstrated that incomplete models can lead up to an order of magnitude error in the calculated friction force for complex profiles. (C) 2013 Elsevier Ltd. All rights reserved.
BibTeX:
@article{Antsov2014,
  author = {Antsov, M. and Dorogin, L. and Vlassov, S. and Polyakov, B. and Vahtrus, M. and Mougin, K. and Lohmus, R. and Kink, I.},
  title = {Analysis of static friction and elastic forces in a nanowire bent on a flat surface: A comparative study},
  journal = {Tribology International},
  year = {2014},
  volume = {72},
  pages = {31--34},
  doi = {http://doi.org/10.1016/j.triboint.2013.12.010}
}
Assaker, K., Carteret, C., Lebeau, B., Marichal, C., Vidal, L., Stebe, M.J. and Blin, J.L. Water-Catalyzed Low-Temperature Transformation from Amorphous to Semi-Crystalline Phase of Ordered Mesoporous Titania Framework 2014 Acs Sustainable Chemistry & Engineering
Vol. 2(2), pp. 120-125 
article DOI  
Abstract: In this paper, the phase transformation in water at low temperature from amorphous TiO2 to semi-crystalline anatase is reported. Our approach is an environmentally friendly low energy consumer process that requires no specific devices or instrumentation. The phase transition occurs even at room temperature. However, the higher the temperature is, the better the crystallinity is. Crystallization of amorphous titania occurs through a rearrangement of the TiO62- octahedral units in amorphous TiO2. The phase transformation is catalyzed by water, which adsorbs on the titania surface to form bridges between the surface OH groups of different octaedra. The obtained titania samples have been used for the photodegradation of methyl orange. Because of the formation of anatase, mesoporous TiO2 exhibits a photocatalytic activity after treatment in water. However, the activity is lower than that of the standard photocatalysts because the TiO2 treated during 1 h in water at 120 C has degraded 85% of methyl orange within 240 mm compared to 45 min for P25.
BibTeX:
@article{Assaker2014,
  author = {Assaker, K. and Carteret, C. and Lebeau, B. and Marichal, C. and Vidal, L. and Stebe, M. J. and Blin, J. L.},
  title = {Water-Catalyzed Low-Temperature Transformation from Amorphous to Semi-Crystalline Phase of Ordered Mesoporous Titania Framework},
  journal = {Acs Sustainable Chemistry & Engineering},
  year = {2014},
  volume = {2},
  number = {2},
  pages = {120--125},
  doi = {http://doi.org/10.1021/sc400323w}
}
Aussere, D., Abou Khachfe, R., Roussille, L., Brotons, G., Vonna, L., Lemarchand, F., Zerrad, M. and Amra, C. Anti-Reflecting Absorbing Layers for Electrochemical and Biophotonic Applications 2014 NANOMEDICINE-NANOTECHNOLOGY
Vol. 5(4), pp. 1-5 
article  
Abstract: Anti-reflecting layers deposited on flat surfaces make molecular films visible in reflecting light microscopy. For centuries, single Anti-Reflecting layers have been implicitly associated with dielectric materials. We recently demonstrated that anti-reflecting layers could be achieved out of absorbing materials such as metals as well, but only when used as backside layers where illumination and detection are performed through a supporting window. Fortunately, this corresponds to the best geometry when envisaging biophotonic or electrochemical applications at the solid/liquid interface. Here we explain how single absorbing anti-reflecting layers can serve each of these applications, and both simultaneously.
BibTeX:
@article{Aussere2014,
  author = {Aussere, D. and Abou Khachfe, R. and Roussille, L. and Brotons, G. and Vonna, L. and Lemarchand, F. and Zerrad, M. and Amra, C},
  title = {Anti-Reflecting Absorbing Layers for Electrochemical and Biophotonic Applications},
  journal = {NANOMEDICINE-NANOTECHNOLOGY},
  year = {2014},
  volume = {5},
  number = {4},
  pages = {1-5}
}
Azzouz, C.B., Akremi, A., Chefi, C., Derivaz, M., Bischoff, J.-L., Florentin, A., Mortada, H., Zanouni, M. and Dentel, D. Influence of annealing process and its associated atomic migrations on the Si/LaAlO3(001) nanostructure nucleation 2014 Thin Solid Films
Vol. 562(0), pp. 668-673 
article URL 
Abstract: Abstract We report here on the atomic migration and associated nucleation mechanisms of Si nanocrystals on LaAlO3(001) surface, a high-κ crystalline oxide. Chemical and structural properties were investigated using X-ray photoelectron spectroscopy, X-ray photoelectron diffraction (XPD), reflection high-energy electron diffraction (RHEED), and ex situ with atomic force microscopy. The Si deposition was achieved by molecular beam epitaxy at room temperature. The morphological and chemical properties were followed as a function of isochronal post-growth annealing at increasing temperatures up to 800 °C by 100 °C steps. Up to 500 °C the Si layer remains amorphous without any interdiffusion and interfacial alloy formation. Above 500 °C Si nanocrystals nucleate on the surface by transformation of the amorphous Si layer into Si crystalline islands. Two kinds of annealing treatments were performed (direct current and electronic bombardment), leading to a better crystal quality (without stacking faults or twins) for a direct current heating process. Finally, a preferential epitaxial relationship between LaAlO3 and the Si islands was deduced by RHEED and confirmed by XPD: Si(001) planes are parallel to the LaAlO3(001) surface and rotated by 45° around the [001] growth axis.
BibTeX:
@article{Azzouz2014,
  author = {Azzouz, Chiraz Ben and Akremi, Abdelwahab and Chefi, Chaabanne and Derivaz, Mickael and Bischoff, Jean-Luc and Florentin, Alban and Mortada, Hussein and Zanouni, Mohamed and Dentel, Didier},
  title = {Influence of annealing process and its associated atomic migrations on the Si/LaAlO3(001) nanostructure nucleation},
  journal = {Thin Solid Films},
  year = {2014},
  volume = {562},
  number = {0},
  pages = {668--673},
  url = {http://www.sciencedirect.com/science/article/pii/S0040609014003393}
}
Azzouz, C., Akremi, A., Derivaz, M., Bischoff, J., Zanouni, M. and Dentel, D. Two dimensional Si layer epitaxied on LaAlO3(111) substrate: RHEED and XPS investigations 2014 Journal of Physics: Conference Series
Vol. 491(1)Journal of Physics: Conference Series, pp. 6 pages 
article DOI URL 
Abstract: We report the epitaxial growth of one Silicon monolayer on the LaAlO 3(111) substrate, a high-κ crystalline oxide. Structural and chemical properties were investigated in-situ using reflection high energy electron diffraction (RHEED) and X-ray photoelectron spectroscopy (XPS). The deposition was achieved by molecular beam epitaxy in the temperature range RT-500°C. A two-dimensional epitaxial growth mode is observed for a deposition at temperature between 300°C and 500°C. The deposited single layer is formed by two dimensional (2D) structures of Si. © Published under licence by IOP Publishing Ltd.
BibTeX:
@article{Azzouz2014a,
  author = {Azzouz, C.B. and Akremi, A. and Derivaz, M. and Bischoff, J.L. and Zanouni, M. and Dentel, D.},
  title = {Two dimensional Si layer epitaxied on LaAlO3(111) substrate: RHEED and XPS investigations},
  booktitle = {Journal of Physics: Conference Series},
  journal = {Journal of Physics: Conference Series},
  year = {2014},
  volume = {491},
  number = {1},
  pages = {6 pages},
  url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897014615&doi=10.1088%2f1742-6596%2f491%2f1%2f012003&partnerID=40&md5=170452567b4088ad28fcb451e96f3341},
  doi = {http://doi.org/10.1088/1742-6596/491/1/012003}
}
Basso, M.C., Giovando, S., Pizzi, A., Pasch, H., Pretorius, N., Delmotte, L. and Celzard, A. Flexible- Elastic Copolymerized Polyurethane- Tannin Foams 2014 Journal of Applied Polymer Science
Vol. 131(13), pp. 40499 
article DOI  
Abstract: Open cell foams obtained by the simultaneous coreaction of condensed flavonoid tannins with an alkoxylated fatty amine and polymeric diphenylmethane isocyanate yielded highly flexible/elastic polyurethane foams. Copolymerized amine/isocyanate/tannin oligomers were identified by C-13 NMR and MALDI-TOF spectroscopy. In general, between 30% and 50% of natural tannins is added to the components used to obtain polymerisation of the polyurethane. The characteristic of these new, partially biosourced polyurethanes is that the tannin present slows down burning, some of them can be made flame self-extinguishing and if burning they neither flow nor asperge flaming material around, contrary to what occurs with normal polyurethanes. This limits the possibility of transmitting fire to other materials in the same environment. Cyclic compression tests were carried out showing that after 50 cycles foam recovery was in excess of 80%. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40499.
BibTeX:
@article{Basso2014,
  author = {Basso, M. C. and Giovando, S. and Pizzi, A. and Pasch, H. and Pretorius, N. and Delmotte, L. and Celzard, A.},
  title = {Flexible- Elastic Copolymerized Polyurethane- Tannin Foams},
  journal = {Journal of Applied Polymer Science},
  year = {2014},
  volume = {131},
  number = {13},
  pages = {40499},
  doi = {http://doi.org/10.1002/app.40499}
}
Basso, M.C., Lacoste, C., Pizzi, A., Fredon, E. and Delmotte, L. MALDI-TOF and C-13 NMR analysis of flexible films and lacquers derived from tannin 2014 Industrial Crops and Products
Vol. 61, pp. 352-360 
article DOI  
Abstract: Highly flexible films and strongly adhering surface finishes were prepared by reacting partially aminated polyflavonoid tannins with furfuryl alcohol in the presence of plasticisers such as glycerol or polyethylene imine. C-13 NMR analysis showed partial amination of the tannin under the conditions used and even the formation of some -N= bridges between flavonoids, although these were shown to be rare. MALDI-TOF analysis showed the presence of oligomers produced by the reaction of furfuryl alcohol with the flavonoids and the simultaneous self-condensation of furfuryl alcohol. Thus linear methylene-furanic chains were also found to be linked to flavonoid reactive sites. Furthermore, side condensation reactions of furfuryl alcohol lead to the formation of methylene ether bridges between furanic nuclei, followed by rearrangement to methylene bridges with liberation of formaldehyde. This latter reacts with both the reactive sites of the flavonoid and of the furane rings to yield -CH2OH and -CH2+ groups and methylene bridges. (C) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{Basso2014a,
  author = {Basso, M. C. and Lacoste, C. and Pizzi, A. and Fredon, E. and Delmotte, L.},
  title = {MALDI-TOF and C-13 NMR analysis of flexible films and lacquers derived from tannin},
  journal = {Industrial Crops and Products},
  year = {2014},
  volume = {61},
  pages = {352--360},
  doi = {http://doi.org/10.1016/j.indcrop.2014.07.019}
}
Belala, Z., Belhachemi, M. and Jeguirim, M. Activated Carbon Prepared from Date Pits for the Retention of NO2 at Low Temperature 2014 International Journal of Chemical Reactor Engineering
Vol. 12(2), pp. 717-726 
article DOI  
Abstract: Activated carbons were prepared from date pits by physical activation with CO2 and the textural properties were investigated by BET and D-R methods with N-2 and CO2 adsorption isotherms. The interaction of the NO2 with activated carbon was examined at ambient temperature and the effect of operating conditions such as temperature and inlet gas compositions was also examined. It was observed that the development of porosity with increasing time of activation favours the adsorption capacity of NO2. The maximum adsorption capacity reached was about 107 mg/g, which is higher than several activated carbon prepared from classical lignocellulosic biomass. However, a slight decrease of NO2 adsorption capacity was observed with increasing temperature. The addition of oxygen into the inlet gas gave rise to an increase in amount adsorbed of NO2.
BibTeX:
@article{Belala2014,
  author = {Belala, Z. and Belhachemi, M. and Jeguirim, M.},
  title = {Activated Carbon Prepared from Date Pits for the Retention of NO2 at Low Temperature},
  journal = {International Journal of Chemical Reactor Engineering},
  year = {2014},
  volume = {12},
  number = {2},
  pages = {717--726},
  doi = {http://doi.org/10.1515/ijcre-2014-0043}
}
Belhachemi, M., Jeguirim, M., Limousy, L. and Addoun, F. Comparison of NO2 removal using date pits activated carbon and modified commercialized activated carbon via different preparation methods: Effect of porosity and surface chemistry 2014 Chemical Engineering Journal
Vol. 253, pp. 121-129 
article DOI  
Abstract: This study aims to evaluate the NO2 adsorption capacities of activated carbons prepared by physical and chemical activation of date pits and to compare them with modified commercialized activated carbons. The texture, morphology and surface chemistry of the different carbons were evaluated by N-2 and CO2 adsorption, scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDX), temperature programmed desorption coupled with mass spectroscopy (TPD MS), Fourier transform infrared spectroscopy (FTIR) and X-ray fluorescence (XRF) techniques. The obtained results show that activated carbon prepared from date pits are an efficient adsorbents for the removal of NO2 from the exhaust gases at ambient temperature. The obtained adsorption capacities are close to the ones obtained for the commercialized activated carbons. The analysis of the correlation between NO2 adsorption capacities and the textural and the surface chemistry properties shows that a higher microporosity volume, an homogenous microporosity and the presence of stable oxygen groups contribute strongly to the adsorption of NO2 on the activated carbon surface. In contrast, the presence of strong acidic groups such as carboxylic, anhydrides and lactones inhibits the reduction of NO2 into NO, which represents a crucial step for the NO2 adsorption. (C) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{Belhachemi2014,
  author = {Belhachemi, M. and Jeguirim, M. and Limousy, L. and Addoun, F.},
  title = {Comparison of NO2 removal using date pits activated carbon and modified commercialized activated carbon via different preparation methods: Effect of porosity and surface chemistry},
  journal = {Chemical Engineering Journal},
  year = {2014},
  volume = {253},
  pages = {121--129},
  doi = {http://doi.org/10.1016/j.cej.2014.05.004}
}
Belibi, P., Daou, J., Ndjaka, J., Nsom, B., Michelin, L. and Durand, B. A Comparative Study of Some Properties of Cassava and Tree Cassava Starch Films 2014 Physics Procedia
Vol. 55(0)8th International Conference on Material Sciences, CSM8-ISM5, pp. 220-226 
article URL 
Abstract: Abstract Cassava and tree cassava starch films plasticized with glycerol were produced by casting method. Different glycerol contents (30, 35, 40 and 45 wt. % on starch dry basis) were used and the resulting films were fully characterized. Their water barrier and mechanical properties were compared. While increasing glycerol concentration, moisture content, water solubility, water vapour permeability, tensile strength, percent elongation at break and Young's modulus decreased for both cassava and tree cassava films. Tree cassava films presented better values of water vapour permeability, water solubility and percent elongation at break compared to those of cassava films, regardless of the glycerol content.
BibTeX:
@article{Belibi2014,
  author = {Belibi, P.C. and Daou, J. and Ndjaka, J.M.B. and Nsom, B. and Michelin, L. and Durand, B.},
  title = {A Comparative Study of Some Properties of Cassava and Tree Cassava Starch Films},
  booktitle = {8th International Conference on Material Sciences, CSM8-ISM5},
  journal = {Physics Procedia},
  year = {2014},
  volume = {55},
  number = {0},
  pages = {220--226},
  url = {http://www.sciencedirect.com/science/article/pii/S1875389214000947}
}
BenAbda, M., Schaf, O., Bullot, L., Simon-Masseron, A... and Zerega, Y. Size controlled separation of dioxins by adsorption onto zeolites 2014 Organohalogen compounds
Vol. 76, pp. 490-493 
article  
BibTeX:
@article{BenAbda2014,
  author = {BenAbda, M and Schaf, O. and Bullot, L and Simon-Masseron, A . and Zerega, Y.},
  title = {Size controlled separation of dioxins by adsorption onto zeolites},
  journal = {Organohalogen compounds},
  year = {2014},
  volume = {76},
  pages = {490-493}
}
Ben Amor, T., Dhaouadi, I., Lebeau, B., Tlili, M. and Ben Amor, M. Synthesis, characterization and application of glucamine-modified mesoporous silica type SBA-15 for the removal of boron from natural water 2014 Desalination
Vol. 351, pp. 82-87 
article DOI  
Abstract: The present survey highlights for the first time that glucamine-modified ordered mesoporous silica (OMS) type SBA-15 can be used as adsorbents for the uptake of boron from water. By means of X-ray diffraction, N-2 adsorption-desorption, thermogravimetry and Fourier transform infrared, the structure and physicochemical properties of the materials were characterized. The behavior of the calcined and glucamine modified SBA-15 in adsorption of boron from synthetic solutions and seawater was investigated. Physico-chemical parameters such as adsorbent dose, equilibrium contact time, pH and initial boron concentration were studied in a series of batch adsorption experiments. Boron adsorption on the adsorbent was saturated within 3 h in solution containing 10 mg L-1 of boron, with 5 g L-1 of adsorbent dose. The studies showed that boron were quantitatively removed from water at neutral pH. The glucamine modified SBA-15 possessed higher boron removal capacity, about 45%, than the unmodified SBA-15 which showed only a 23% of boron removal. Thanks to the increase of the adsorption sites due to the grafting. Desorption tests were carried out using 1 M HCl. OMS type SBA-15 was also successfully applied for the removal of boron from seawater in the presence of high concentration of foreigner ions. (C) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{BenAmor2014,
  author = {Ben Amor, T. and Dhaouadi, I. and Lebeau, B. and Tlili, M. and Ben Amor, M.},
  title = {Synthesis, characterization and application of glucamine-modified mesoporous silica type SBA-15 for the removal of boron from natural water},
  journal = {Desalination},
  year = {2014},
  volume = {351},
  pages = {82--87},
  doi = {http://doi.org/10.1016/j.desal.2014.07.028}
}
Ben Hamada, B., Souissi, A., Menzli, S., Arbi, I., Akremi, A., Chefi, C. and Derivaz, M. Photoemission study of copper phthalocyanine growth on hydrogen-terminated surface: Si(100)2 x 1-H 2014 Thin Solid Films
Vol. 567, pp. 96-100 
article DOI  
Abstract: Copper phthalocyanine molecules have grown at room temperature under ultra high vacuum on hydrogen-terminated surface Si(100)2 x 1-H. Chemical and electronic properties of the interface were investigated by ultraviolet and X-ray photoemission spectroscopy (UPS, XPS). Results: Results indicated the existence of an interfacial dipole of 0.36 +/- 0.05 eV and a band bending of 0.40 +/- 0.05 eV. These were evidenced by shifts of XPS core levels and change of the vacuum level position. During the growth, the work function was found to decrease from 4.5 eV for the substrate to 3.74 eV for the highest coverage (40 monolayers). This band bending was also due to the shift of the highest occupied molecular orbital. The interfacial dipole was correlated to a rearrangement of molecules on the surface. An energy level diagram of the interface was deduced from a combination of the XPS and UPS results. (C) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{BenHamada2014,
  author = {Ben Hamada, B. and Souissi, A. and Menzli, S. and Arbi, I. and Akremi, A. and Chefi, C. and Derivaz, M.},
  title = {Photoemission study of copper phthalocyanine growth on hydrogen-terminated surface: Si(100)2 x 1-H},
  journal = {Thin Solid Films},
  year = {2014},
  volume = {567},
  pages = {96--100},
  doi = {http://doi.org/10.1016/j.tsf.2014.07.046}
}
Bezverkhyy, I., Ortiz, G., Chaplais, G., Marichal, C., Weber, G. and Bellat, J.-P. MIL-53(Al) under reflux in water: Formation of γ-AlO(OH) shell and H2BDC molecules intercalated into the pores 2014 Microporous and Mesoporous Materials
Vol. 183(0), pp. 156-161 
article URL 
Abstract: Abstract It is shown that treatment of MIL-53(Al) (Al(OH)BDC·H2O, BDC = 1,4-benzene dicarboxylate) under reflux in water results in a progressive transformation of the solid into a new well crystallized phase. After reflux for 10 h or more the new phase is obtained in a pure form and its XRD pattern was indexed in a monoclinic system with the following cell parameters: a = 19.47 Å, b = 8.98 Å, c = 6.60 Å, β = 107.7°. Characterization of the obtained solid by TGA, FT-IR, NMR, TEM and XRD has revealed that its composition is [0.8Al(OH)BDC·0.2H2BDC] + 0.2γ-AlO(OH). Formation of this material indicates that under reflux in water a partial hydrolysis of the MOF network occurs producing H2BDC molecules (occluded in the pores) and γ-AlO(OH) species. The latter is shown to form a thick shell (100-200 nm) consisting of strongly crumpled sheets of 3 nm of thickness. Formation of γ-AlO(OH) under reflux in water allows to use such treatment as an easy way to modify the surface properties of MIL-53(Al). We showed that treatment of MIL-53(Al) under reflux in water for a short time (<1 h) yields a thin layer of γ-AlO(OH) on the surface of the particles while only slightly decreasing their pore volume (from 0.57 to 0.50 cm3/g). Such surface modification of MIL-53(Al) might be useful from two points of view. First, it creates a strongly hydrophilic layer on the surface of material and may thus facilitate its shaping. Second, the OH groups of γ-AlO(OH) surface layer may be used as anchoring sites for functionalization of MIL-53(Al) particles.
BibTeX:
@article{Bezverkhyy2014,
  author = {Bezverkhyy, Igor and Ortiz, Guillaume and Chaplais, Gérald and Marichal, Claire and Weber, Guy and Bellat, Jean-Pierre},
  title = {MIL-53(Al) under reflux in water: Formation of γ-AlO(OH) shell and H2BDC molecules intercalated into the pores},
  journal = {Microporous and Mesoporous Materials},
  year = {2014},
  volume = {183},
  number = {0},
  pages = {156--161},
  url = {http://www.sciencedirect.com/science/article/pii/S1387181113004691}
}
Bippus, L., Jaber, M., Lebeau, B., Schleich, D. and Scudeller, Y. Thermal conductivity of heat treated mesoporous silica particles 2014 Microporous and Mesoporous Materials
Vol. 190(0), pp. 109-116 
article URL 
Abstract: The thermal conductivity of mesoporous silica particles prepared as fine powder and heat treated between 150 and 700 °C has been studied. Mesostructured silica particles of 30 nm diameter were synthesized through a derived sol–gel method in the presence of a cationic surfactant. The thermal conductivity was found to be ranged from 0.03 to 0.08 Wm−1K−1 according to treatment and packing while the density, the porous volume and the specific surface area of materials varied between 350 and 700 kg/m3, 0.01 and 1.21 cm3/g, and 10 and 420 m2/g, respectively. The analyses carried-out with X-ray diffraction, scanning electron microscopy, transmission electron microscopy, manometric adsorption/desorption of nitrogen, Fourier transform infrared spectrometry and solid-state nuclear magnetic resonance of 29Si nucleus revealed that the thermal conductivity was modified in agreement with the structural changes subsequent to dehydration, decomposition of organic matter, loss of hydroxyl groups and sintering of silica particles.
BibTeX:
@article{Bippus2014,
  author = {Bippus, Laurent and Jaber, Maguy and Lebeau, Bénédicte and Schleich, Donald and Scudeller, Yves},
  title = {Thermal conductivity of heat treated mesoporous silica particles},
  journal = {Microporous and Mesoporous Materials},
  year = {2014},
  volume = {190},
  number = {0},
  pages = {109--116},
  url = {http://www.sciencedirect.com/science/article/pii/S1387181114000602}
}
Blas, L., Dorge, S., Zouaoui, N., Lambert, A. and Dutournie, P. Influence of the Oxidation Step on the Behaviour and the Performances of an Oxygen Carrier in Fixed Bed Reactor 2014 Materials Research-ibero-american Journal of Materials
Vol. 17(1), pp. 219-226 
article DOI  
Abstract: Chemical Looping Combustion is a promising technology for clean power generation with integrated CO2 capture. In this process the oxygen required for combustion is provided by a metal oxide. This work deals with the development of an experimental procedure to study performances of an oxygen carrier during oxidation/reduction cycles and the influence of the oxidation step on its behaviour. Tests were performed in a laboratory fixed bed reactor, with NiO/NiAl2O4, a promising oxygen carrier, and CO as fuel. Two different protocols of oxidation were studied. Results reveal that the oxidation step conditions can change the performances of the oxygen carrier. A significant decrease in total reduction capacity was observed using the regeneration step at high temperature due to structural changes in particles. SEM analysis reveals that particle surface contains different crystallites according to this procedure. With the second procedure ( oxidation in temperature ramp), nickel is partially agglomerated.
BibTeX:
@article{Blas2014,
  author = {Blas, L. and Dorge, S. and Zouaoui, N. and Lambert, A. and Dutournie, P.},
  title = {Influence of the Oxidation Step on the Behaviour and the Performances of an Oxygen Carrier in Fixed Bed Reactor},
  journal = {Materials Research-ibero-american Journal of Materials},
  year = {2014},
  volume = {17},
  number = {1},
  pages = {219--226},
  doi = {http://doi.org/10.1590/S1516-14392013005000183}
}
Boltz, M., Losch, P., Louis, B., Rioland, G., Tzanis, L. and Daou, J. MFI-type zeolite nanosheets for gas-phase aromatics chlorination: a strategy to overcome mass transfer limitations 2014 Rsc Advances
Vol. 4(52), pp. 27242-27249 
article DOI  
Abstract: The continuous gas-solid (environmentally-friendly) chlorination of deactivated arenes using trichloroisocyanuric acid (TCCA, C3N3O3Cl3) as a chlorination agent was chosen to compare the catalytic performances of various MFI-type catalysts in a reaction demanding a strong acidity. Mass transfer limitations were also evaluated by reacting either chloro-or nitrobenzene through a ZSM-5 zeolite porous network having different crystal sizes and morphologies. Whereas, the reaction rate was completely controlled by internal diffusion in 10-15 mu m-sized big ZSM-5 zeolite crystals (Weisz modulus, phi(big) crystals similar to 10), the impact of internal diffusion could be ruled out for ZSM-5 nanocrystals (200-400 nm) and in stacked ZSM-5 nanosheets (thickness 2 nm). Based on reactivity differences in arene halogenation between the two nano-sized ZSM-5 zeolites, we were able to estimate the quantity of mild acidic silanol groups in ZSM-5 nanosheets to roughly 1/3 of the total amount of BrOnsted acid sites.
BibTeX:
@article{Boltz2014,
  author = {Boltz, M. and Losch, P. and Louis, B. and Rioland, G. and Tzanis, L. and Daou, J.},
  title = {MFI-type zeolite nanosheets for gas-phase aromatics chlorination: a strategy to overcome mass transfer limitations},
  journal = {Rsc Advances},
  year = {2014},
  volume = {4},
  number = {52},
  pages = {27242--27249},
  doi = {http://doi.org/10.1039/c4ra02747g}
}
Boukari, K., Duverger, E., Hanf, M.C., Stephan, R. and Sonnet, P. Theoretical study of intermolecular interactions in nanoporous-networks on boron doped silicon surface 2014 Chemical Physics Letters
Vol. 615, pp. 117-123 
article DOI  
BibTeX:
@article{Boukari2014,
  author = {Boukari, K. and Duverger, E. and Hanf, M. C. and Stephan, R. and Sonnet, P.},
  title = {Theoretical study of intermolecular interactions in nanoporous-networks on boron doped silicon surface},
  journal = {Chemical Physics Letters},
  year = {2014},
  volume = {615},
  pages = {117--123},
  doi = {http://doi.org/10.1016/j.cplett.2014.10.005}
}
Boukari, K., Duverger, E., Stephan, R., Hanf, M.-C. and Sonnet, P. C60 molecules grown on a Si-supported nanoporous supramolecular network: a DFT study 2014 Phys. Chem. Chem. Phys.
Vol. 16(28), pp. 14722-14729 
article URL 
Abstract: C60 fullerene assemblies on surfaces have attracted considerable attention because of their remarkable electronic properties. Now because of the competition between the molecules-substrate and the molecule-molecule interactions, an ordered C60 array is rather difficult to obtain on silicon surfaces. Here we present density functional theory simulations on C60 molecules deposited on a TBB (1,3,5-tri(1[prime or minute]-bromophenyl)benzene) monolayer lying on the Si(111)-boron surface (denoted SiB). The C60 molecules are located in the nanopores formed by the TBB network. Adsorption energy calculations show that the SiB surface governs the C60 vertical position, whereas the TBB network imposes the C60 lateral position, and stabilizes the molecule as well. The low charge density between the C60 and the SiB substrate on one hand, and on the other hand between the C60 and the TBB molecules, indicates that no covalent bond is formed between the C60 and its environment. However, according to charge density differences, a drastic charge reorganisation takes place between the Si adatoms and the C60 molecule, but also between the C60 and the surrounding TBB molecules. Finally, calculations show that a C60 array sandwiched between two TBB molecular layers is stable, which opens up the way to the growth of 3D supramolecular networks.
BibTeX:
@article{Boukari2014a,
  author = {Boukari, Khaoula and Duverger, Eric and Stephan, Regis and Hanf, Marie-Christine and Sonnet, Philippe},
  title = {C60 molecules grown on a Si-supported nanoporous supramolecular network: a DFT study},
  journal = {Phys. Chem. Chem. Phys.},
  publisher = {The Royal Society of Chemistry},
  year = {2014},
  volume = {16},
  number = {28},
  pages = {14722--14729},
  url = {http://dx.doi.org/10.1039/C4CP01677G}
}
Boukari, K., Duverger, E. and Sonnet, P. Molecular chemisorption on passivated and defective boron doped silicon surfaces: a ‘‘forced’’ dative bond 2014 Phys. Chem. Chem. Phys.
Vol. 16, pp. 24866 
article  
BibTeX:
@article{Boukari2014c,
  author = {Boukari, K. and Duverger, E. and Sonnet, P},
  title = {Molecular chemisorption on passivated and defective boron doped silicon surfaces: a ‘‘forced’’ dative bond},
  journal = {Phys. Chem. Chem. Phys.},
  year = {2014},
  volume = {16},
  pages = {24866}
}
Boukari, K., Duverger, E., Stauffer, L. and Sonnet, P. A new assisted molecular cycloaddition on boron doped silicon surfaces: a predictive DFT-D study 2014 Physical Chemistry Chemical Physics
Vol. 16(24), pp. 12164-12171 
article DOI  
Abstract: In the framework of the Density Functional Theory (DFT-D), we investigate the phthalocyanine (H2Pc) molecule adsorption on SiC(0001) 3 x 3 and Si(111)root 3 x root 3R30 degrees-B (SiB) surfaces, and particularly compare the involved molecular adsorptions. In the H2Pc-SiC(0001) 3 x 3 system, the molecular adsorption can be ascribed to a [10+2] cycloaddition. The H2Pc-SiB system is considered in three cases: defectless SiB surface (denoted SiB-0D) and SiB surfaces presenting one or two boron defects (denoted SiB-1D and SiB-2D respectively). The SiB-0D surface is passivated by a charge transfer from the Si adatoms to the boron atoms and therefore no chemical bond between the molecule and the substrate is observed. A similar molecular adsorption as already evidenced in the H2Pc-SiC(0001) 3 x 3 system is involved in the SiB-2D case. In the case of the SiB-1D surface, two Si-N bonds (Si1-N1 and Si-2-N-2) are observed. One of them, Si1-N1, is nearly similar to that found in the H2Pc-SiB-D-2 system, but the Si-2-N-2 bond is unexpected. The Bader charge analysis suggests that, in the presence of the H2Pc molecule, the boron atoms behave like an electron reservoir whose availability varies following the involved molecular adsorption process. In the SiB-1D case, charges are transferred from the substrate to the molecule, allowing the Si-2-N-2 bond formation. Such a kind of molecular adsorption, not yet observed, could be designed by "assisted pseudo cycloaddition''.
BibTeX:
@article{Boukari2014d,
  author = {Boukari, K. and Duverger, E. and Stauffer, L. and Sonnet, P.},
  title = {A new assisted molecular cycloaddition on boron doped silicon surfaces: a predictive DFT-D study},
  journal = {Physical Chemistry Chemical Physics},
  year = {2014},
  volume = {16},
  number = {24},
  pages = {12164--12171},
  doi = {http://doi.org/10.1039/c4cp00839a}
}
Bouna, L., Rhouta, B., Maury, F., Jada, A., Senocq, F. and Lafont, M.C. Photocatalytic activity of TiO2/stevensite nanocomposites for the removal of Orange G from aqueous solutions 2014 Clay Minerals
Vol. 49, pp. 365-376 
article  
BibTeX:
@article{Bouna2014,
  author = {Bouna, L. and Rhouta, B. and Maury, F. and Jada, A. and Senocq, F. and Lafont, M. C.},
  title = {Photocatalytic activity of TiO2/stevensite nanocomposites for the removal of Orange G from aqueous solutions},
  journal = {Clay Minerals},
  year = {2014},
  volume = {49},
  pages = {365-376}
}
Braghiroli, F.L., Fierro, V., Izquierdo, M.T., Parmentier, J., Pizzi, A. and Celzard, A. Kinetics of the hydrothermal treatment of tannin for producing carbonaceous microspheres 2014 Bioresource Technology
Vol. 151, pp. 271-277 
article DOI  
Abstract: Aqueous solutions of condensed tannins were submitted to hydrothermal carbonization (HTC) in a stainless steel autoclave, and the kinetics of hydrothermal carbon formation was investigated by changing several parameters: amount of tannin (0.5; 1.0; 1.5; 2.0 g in 16 mL of water), HTC temperature (130, 160, 180 and 200 degrees C) and reaction times (from 1 to 720 h). The morphology and the structure of the tannin-based hydrothermal carbons were studied by TEM, krypton adsorption at - 196 degrees C and helium pycnometry. These materials presented agglomerated spherical particles, having surface areas ranging from 0.6 to 10.0 m(2) g(-1). The chemical composition of the hydrothermal carbons was found to be constant and independent of reaction time. HTC kinetics of tannin were determined and shown to correspond to first-order reaction. Temperature-dependent measurements led to an activation energy of 91 kJ mol(-1) for hydrothermal conversion of tannin into carbonaceous microspheres separable by centrifugation. (C) 2013 Elsevier Ltd. All rights reserved.
BibTeX:
@article{Braghiroli2014,
  author = {Braghiroli, F. L. and Fierro, V. and Izquierdo, M. T. and Parmentier, J. and Pizzi, A. and Celzard, A.},
  title = {Kinetics of the hydrothermal treatment of tannin for producing carbonaceous microspheres},
  journal = {Bioresource Technology},
  year = {2014},
  volume = {151},
  pages = {271--277},
  doi = {http://doi.org/10.1016/j.biortech.2013.10.045}
}
Brioude, M.D., Laborie, M.P., Airoudj, A., Haidara, H. and Roucoules, V. Controlling the Morphogenesis of Needle-Like and Multibranched Structures in Maleic Anhydride Plasma Polymer Thin Films 2014 Plasma Processes And Polymers
Vol. 11, pp. 943-951 
article DOI  
Abstract: We report for the first time the formation of spherical and branched structures when polymerizing maleic anhydride under very low power with pulsed plasma polymerization. A factorial experimental design evidenced duty cycle, frequency and their interactions as decisive factors for the formation and growth of these structures. A mechanism involving the decoupling of deposition (nucleation) and diffusion rates of active species was proposed to relate structure formation to processing parameters. While differences in surface chemistry were not detectable by surface spectroscopy (PM-IRRAS, XPS), AFM force measurements on a carefully designed sample evidenced differences in adhesion and thus surface chemistry between the different film morphologies.
BibTeX:
@article{Brioude2014,
  author = {Brioude, M. D. and Laborie, M. P. and Airoudj, A. and Haidara, H and Roucoules, V.},
  title = {Controlling the Morphogenesis of Needle-Like and Multibranched Structures in Maleic Anhydride Plasma Polymer Thin Films},
  journal = {Plasma Processes And Polymers},
  year = {2014},
  volume = {11},
  pages = {943-951},
  doi = {DOI: 10.1002/ppap.201400057}
}
Buchwalter, P., Rose, J., Lebeau, B., Rabu, P., Braunstein, P. and Paillaud, J.L. Stoichiometric molecular single source precursors to cobalt phosphides 2014 Inorganica Chimica Acta
Vol. 409, pp. 330-341 
article DOI  
Abstract: Crystalline cobalt phosphides were synthesized by using three different, low oxidation-state organometallic clusters as precursors, [Co-4(CO)(10)(mu-dppa)], [Co-4(CO)(10)(mu(4)-PPh)(2)] and [Co-4(CO)(8)(mu-dppa)(2)] (dppa = Ph2PNHPPh2), which are characterized by Co/P ratios of 2:1, 2:1 and 1:1, respectively. Depending on their Co/P ratio, these clusters are suitable single-source precursors to form CoP and Co2P without the need to add any other reagent or surfactant. The thermal behavior of these three clusters was investigated under different conditions. The results show how their Co/P ratios, the nature of the atmosphere used for their thermal activation and the temperature control the nature and composition of the resulting phases. (C) 2013 Elsevier B.V. All rights reserved.
BibTeX:
@article{Buchwalter2014,
  author = {Buchwalter, P. and Rose, J. and Lebeau, B. and Rabu, P. and Braunstein, P. and Paillaud, J. L.},
  title = {Stoichiometric molecular single source precursors to cobalt phosphides},
  journal = {Inorganica Chimica Acta},
  year = {2014},
  volume = {409},
  pages = {330--341},
  doi = {http://doi.org/10.1016/j.ica.2013.09.019}
}
Buet, E., Sander, C., Sornin, D., Poissonnet, S., Rouzaud, J.N. and Vix-Guterl, C. Influence of surface fibre properties and textural organization of a pyrocarbon interphase on the interfacial shear stress of SiC/SiC minicomposites reinforced with Hi-Nicalon S and Tyranno SA3 fibres 2014 Journal of the European Ceramic Society
Vol. 34(2), pp. 179-188 
article DOI  
Abstract: SiC/SiC composites reinforced with 3rd generation SiC fibres (Hi-Nicalon S and Tyranno SA3) are attractive for nuclear applications. The mechanical properties of SiC/SiC minicomposites were studied in relation with the nature of fibres and the textural organization of the pyrocarbon interphase. Two different experimental mechanical procedures were used: the push-out test and the tensile mechanical test. The experimental results demonstrate that the interfacial shear stress is higher for a minicomposite reinforced with Tyranno SA3 fibres. It is also shown that the interfacial shear stress depends on the texture of the carbon interphase. Highly anisotropic pyrocarbon interphase increases the interfacial shear stress. To our knowledge it is the first time that the influence of pyrocarbon texture is observed on SiC/SiC composites using Hi-Nicalon S and Tyranno SA3 fibres. It is also demonstrated that push-out tests are more appropriated than tensile tests to highlight differences of interfacial shear stress measurements. (C) 2013 Elsevier Ltd. All rights reserved.
BibTeX:
@article{Buet2014,
  author = {Buet, E. and Sander, C. and Sornin, D. and Poissonnet, S. and Rouzaud, J. N. and Vix-Guterl, C.},
  title = {Influence of surface fibre properties and textural organization of a pyrocarbon interphase on the interfacial shear stress of SiC/SiC minicomposites reinforced with Hi-Nicalon S and Tyranno SA3 fibres},
  journal = {Journal of the European Ceramic Society},
  year = {2014},
  volume = {34},
  number = {2},
  pages = {179--188},
  doi = {http://doi.org/10.1016/j.jeurceramsoc.2013.08.027}
}
Buret, S., Nabzar, L. and Jada, A. New Insights on Emulsions and deposition in porous medium 2014 J. Colloid Sci. Biotechnol
Vol. 3, pp. 91-97 
article  
BibTeX:
@article{Buret2014,
  author = {Buret, S. and Nabzar, L. and Jada, A.},
  title = {New Insights on Emulsions and deposition in porous medium},
  journal = {J. Colloid Sci. Biotechnol},
  year = {2014},
  volume = {3},
  pages = {91-97}
}
Chemtob, A., De Paz-Simon, H., Dietlin, C., Croutxe-Barghorn, C., Salmi, H., Allonas, X., Chany, A.C., Vidal, L. and Rigolet, S. A highly reactive photobase catalytic system for sol-gel polymerization 2014 Thin Solid Films
Vol. 550, pp. 177-183 
article DOI  
Abstract: In sol-gel polymerization of alkoxysilane precursors, base catalysts are usually employed to introduce textural properties. Herein, we show the feasibility and interest of a photobase-catalyzed sol-gel reaction to afford silicate films. Our inorganic polymerization is solvent-free, single-step and UV activatable with a mixture of alpha-aminoacetophenone (photobase generator), benzophenone (photosensitizer) and triphenylphosphine (oxygen scavenger). To date, the present tricomponent photolatent system generating N-alkyl morpholine tertiary amines represents one of the most efficient photobase generators reported so far in sol-gel chemistry. A combination of spectroscopic and electronmicroscopy techniques enabled to investigate the fundamental chemistry underlying alkoxysilane photopolymerization: reaction mechanism, hydrolysis kinetics and siloxane microstructure. Systematic comparison with a photoacid-catalyzed process revealed also the impact of the photocatalyst nature on film texture, morphology and optical properties. (C) 2013 Elsevier B.V. All rights reserved.
BibTeX:
@article{Chemtob2014,
  author = {Chemtob, A. and De Paz-Simon, H. and Dietlin, C. and Croutxe-Barghorn, C. and Salmi, H. and Allonas, X. and Chany, A. C. and Vidal, L. and Rigolet, S.},
  title = {A highly reactive photobase catalytic system for sol-gel polymerization},
  journal = {Thin Solid Films},
  year = {2014},
  volume = {550},
  pages = {177--183},
  doi = {http://doi.org/10.1016/j.tsf.2013.10.146}
}
Chen, Y., Lingwood, M.D., Goswami, M., Kidd, B.E., Hernandez, J.J., Rosenthal, M., Ivanov, D.A., Perlich, J., Zhang, H., Zhu, X.M., Moller, M. and Madsen, L.A. Humidity-Modulated Phase Control and Nanoscopic Transport in Supramolecular Assemblies 2014 Journal of Physical Chemistry B
Vol. 118(11), pp. 3207-3217 
article DOI  
Abstract: Supramolecular assembly allows for enhanced control of bulk material properties through the fine modulation of intermolecular interactions. We present a comprehensive study of a cross-linkable amphiphilic wedge molecule based on a sulfonated trialkoxybenzene with a sodium counterion that forms liquid crystalline (LC) phases with ionic nanochannel structures. This compound exhibits drastic structural changes as a function of relative humidity (RH). Our combined structural, dynamical, and transport studies reveal deep and novel information on the coupling of water and wedge molecule transport to structural motifs, including the significant influence of domain boundaries within the material. Over a range of RH values, we employ Na-23 solid-state NMR on the counterions to complement detailed structural studies by grazing-incidence small-angle X-ray scattering. RH-dependent pulsed-field-gradient (PFG) NMR diffusion studies on both water and the wedge amphiphiles show multiple components, corresponding to species diffusing within LC domains as well as in the domain boundaries that compose 10% of the material. The rich transport and dynamical behaviors described here represent an important window into the world of supramolecular soft materials, carrying implications for optimization of these materials in many venues. Cubic phases present at high RH show fast transport of water (2 X 10(-10) m(2)/s), competitive with that observed in benchmark polymeric ion conductors. Understanding the self-assembly of these supramolecular building blocks shows promise for generating cross-linked membranes with fast ion conduction for applications such as next-generation batteries.
BibTeX:
@article{Chen2014,
  author = {Chen, Y. and Lingwood, M. D. and Goswami, M. and Kidd, B. E. and Hernandez, J. J. and Rosenthal, M. and Ivanov, D. A. and Perlich, J. and Zhang, H. and Zhu, X. M. and Moller, M. and Madsen, L. A.},
  title = {Humidity-Modulated Phase Control and Nanoscopic Transport in Supramolecular Assemblies},
  journal = {Journal of Physical Chemistry B},
  year = {2014},
  volume = {118},
  number = {11},
  pages = {3207--3217},
  doi = {http://doi.org/10.1021/jp409266r}
}
Chouchene, A., Jeguirim, M. and Trouve, G. Biosorption performance, combustion behavior, and leaching characteristics of olive solid waste during the removal of copper and nickel from aqueous solutions 2014 Clean Technologies and Environmental Policy
Vol. 16(5), pp. 979-986 
article DOI  
Abstract: Several researchers have proved that agricultural by-products constitute good adsorbents for removing heavy metals from aqueous solution. However, few investigations have identified efficient strategies for the adsorbent's regeneration. Hence, a global methodology for the removal of copper and nickel metals from wastewater including metal biosorption, thermal treatment and residual ash landfill is proposed. In order to validate this strategy, olive solid waste (OSW), provided by an olive oil mill from Tunisia, were used to remove copper and nickel on batch experiments. Copper and nickel were adsorbed on a monolayer of OSW surface with maximal adsorption capacity (q (max)) of 3.6 and 1.7 mg g(-1), respectively. Contaminated OSW with copper and nickel were combusted at 850 A degrees C in an electrical furnace. About 96 % of each metal was recovered in residual ashes that present a good secondary raw material for copper and nickel production. Low leaching transfers (a parts per thousand currency sign4 %) were observed for copper and nickel from residual ashes leading to the possibility to be landfilled. Therefore, the suggested process can be used as an alternative to the classical technologies for effluent decontamination.
BibTeX:
@article{Chouchene2014,
  author = {Chouchene, A. and Jeguirim, M. and Trouve, G.},
  title = {Biosorption performance, combustion behavior, and leaching characteristics of olive solid waste during the removal of copper and nickel from aqueous solutions},
  journal = {Clean Technologies and Environmental Policy},
  year = {2014},
  volume = {16},
  number = {5},
  pages = {979--986},
  doi = {http://doi.org/10.1007/s10098-013-0680-9}
}
Coudert, F.X., Ortiz, A.U., Haigis, V., Bousquet, D., Fuchs, A.H., Ballandras, A., Weber, G., Bezverkhyy, I., Geolfroy, N., Bellat, J.P., Ortiz, G., Chaplais, G., Patarin, J. and Boutin, A. Water Adsorption in Flexible Gallium-Based MIL-53 Metal-Organic Framework 2014 Journal of Physical Chemistry C
Vol. 118(10), pp. 5397-5405 
article DOI  
Abstract: Understanding the adsorption of water in metal organic frameworks (MOF), and particularly in soft porous crystals, is a crucial prerequisite before considering MOFs for industrial applications. We report here a joint experimental and theoretical study on the behavior of a gallium-based breathing MOF, Ga-MIL-53, upon water adsorption. By looking at the energetics and thermodynamics of Ga-MIL-53, we demonstrate why it behaves differently from its sibling Al-MIL-53, showing a different phase at room temperature (a nonporous phase) and the presence of a hydrated narrow-pore structure at gas saturation pressure. Moreover, we present a complete water vapor pressure vs temperature phase diagram of Ga-MIL-53 upon water adsorption.
BibTeX:
@article{Coudert2014,
  author = {Coudert, F. X. and Ortiz, A. U. and Haigis, V. and Bousquet, D. and Fuchs, A. H. and Ballandras, A. and Weber, G. and Bezverkhyy, I. and Geolfroy, N. and Bellat, J. P. and Ortiz, G. and Chaplais, G. and Patarin, J. and Boutin, A.},
  title = {Water Adsorption in Flexible Gallium-Based MIL-53 Metal-Organic Framework},
  journal = {Journal of Physical Chemistry C},
  year = {2014},
  volume = {118},
  number = {10},
  pages = {5397--5405},
  doi = {http://doi.org/10.1021/jp412433a}
}
Crespo-Monteiro, N., Destouches, N., Epicier, T., Balan, L., Vocanson, F., Lefkir, Y. and Michalon, J.-Y. Changes in the Chemical and Structural Properties of Nanocomposite Ag:TiO2 Films during Photochromic Transitions. 2014 Journal of Physical Chemistry C
Vol. 118(41), pp. 24055-24061 
article  
Abstract: This study focuses on changes in the oxidn. state of silver and in the cryst. phase of TiO2 occurring during the photochromic transitions of amorphous nanocomposite mesoporous Ag:TiO2 films exposed to UV and visible laser light. The chem. and phase transformations have been investigated by UV-visible spectroscopy, XPS, transmission electron microscopy, high-angle annular dark field scanning transmission electron microscopy, and high-resoln. transmission electron microscopy. The results bring to the fore the presence of both silver nanoparticles in face-centered cubic and hexagonal cryst. phases during the photochromic transitions and a large amt. of oxidized silver nanoparticles after visible light exposure, along with nucleation of some TiO2 crystals despite the very low intensity used. [on SciFinder(R)]
BibTeX:
@article{Crespo-Monteiro2014,
  author = {Crespo-Monteiro, Nicolas and Destouches, Nathalie and Epicier, Thierry and Balan, Lavinia and Vocanson, Francis and Lefkir, Yaya and Michalon, Jean-Yves.},
  title = {Changes in the Chemical and Structural Properties of Nanocomposite Ag:TiO2 Films during Photochromic Transitions.},
  journal = {Journal of Physical Chemistry C},
  publisher = {American Chemical Society},
  year = {2014},
  volume = {118},
  number = {41},
  pages = {24055--24061}
}
Decaux, C., Ghimbeu Camelia Matei, C., Dahbi, M., Anouti, M., Lemordant, D., Béguin, F., Vix-Guterl, C. and Raymundo-Piñero, E. Influence of electrolyte ion-solvent interactions on the performances of supercapacitors porous carbon electrodes 2014 Journal of Power Sources
Vol. 263(0), pp. 130-140 
article URL 
Abstract: Abstract The development of advanced and safe electrochemical supercapacitors or hybrid supercapacitors combining a battery electrode material such as graphite and a porous carbon electrode implies the use of new electrolytes containing a tetra-alkylammonium or lithium salt dissolved preferentially in a safe and environmentally friendly solvent such as alkylcarbonates. In those systems, the carbon porosity of the activated carbon electrode controls the electrochemical behavior of the whole device. In this work, it is demonstrated that electrolytes containing highly polarizing ions such as Li+ dissolved in polar solvents such as alkylcarbonates do not completely loss their solvation shell at the opposite of what is observed for poorly solvated cations like TEABF4. As a consequence, the optimal carbon pore size for obtaining the largest energy density, while keeping a high power density, is wider when strongly solvated cations, like Li+ are used than for conventional organic electrolytes using acetonitrile as solvent and TEA+ as salt cations. TEA+ cations are easily desolvated and hence are able to penetrate in small pores matching the dimensions of bare ions. The dissimilarity of behavior of alkylcarbonates and acetonitrile based electrolytes highlights the importance of ion-solvent interactions when searching the optimal porous texture for the electrode material.
BibTeX:
@article{Decaux2014,
  author = {Decaux, C. and Ghimbeu, Camelia Matei, C. and Dahbi, M. and Anouti, M. and Lemordant, D. and Béguin, F. and Vix-Guterl, C. and Raymundo-Piñero, E.},
  title = {Influence of electrolyte ion-solvent interactions on the performances of supercapacitors porous carbon electrodes},
  journal = {Journal of Power Sources},
  year = {2014},
  volume = {263},
  number = {0},
  pages = {130--140},
  url = {http://www.sciencedirect.com/science/article/pii/S0378775314005126}
}
Deon, S., Dutournie, P., Limousy, L., Bourseau, P. and Fievet, P. Numerical ways to characterize the deterioration of nanofiltration mambranes 2014 international journal of membrane science and technology
Vol. 1, pp. 1-8 
article  
BibTeX:
@article{Deon2014,
  author = {Deon, S. and Dutournie, P. and Limousy, L. and Bourseau, P. and Fievet, P.},
  title = {Numerical ways to characterize the deterioration of nanofiltration mambranes},
  journal = {international journal of membrane science and technology},
  year = {2014},
  volume = {1},
  pages = {1-8}
}
De Paz, H., Chemtob, A., Croutxe-Barghorn C.and Rigolet, S., Michelin, L., Vidal, L. and Lebeau Surfactant-directed synthesis of mesoporous films made single-step by a tandem photosol-gel/photocalcination route 2014 APL Materials
Vol. 2, pp. 1-8 
article DOI  
Abstract: In view of their technological impact in materials chemistry, a simplified and more efficient synthetic route to mesoporous films is highly sought. We report, herein, a smart UV-mediated approach coupling in a one-stage process sol-gel photopolymerization and photoinduced template decomposition/ablation to making mesoporous silica films. Performed at room temperature with a solvent-free solution of silicate precursor and amphiphilic poly(ethylene oxide)-poly(propylene oxide)- poly(ethylene oxide) block copolymer, the synthesis relies on photoacid generation to induce the fast formation (≈10 min) of mesostructured silica/surfactant domains. Continuation of UV exposure for three additional hours enables subsequent and complete photodegradation of the polyether copolymer, resulting in ordered or disordered mesoporous silica film. One of the most attractive features is that the one-step procedure relies on a continuous illumination provided by the same conventional mediumpressure Hg-Xe arc lamp equipped with a 254 nm reflector to enhance the emission of energetic photons <300 nm. In addition to X-ray diffraction and transmission electron microscopy, time-resolved Fourier transform infrared spectroscopy has proved to be a powerful in situ technique to probe the different chemical transformations accompanying irradiation. Photocalcination strengthens the inorganic network, while allowing to preserve a higher fraction of residual silanol groups compared with thermal calcination. A polyether chain degradation mechanism based on oxygen reactive species-mediated photo-oxidation is proposed
BibTeX:
@article{DePaz2014,
  author = {De Paz, H. and Chemtob, A. and Croutxe-Barghorn, C.and Rigolet, S. and Michelin, L. and Vidal L. and Lebeau},
  title = {Surfactant-directed synthesis of mesoporous films made single-step by a tandem photosol-gel/photocalcination route},
  journal = {APL Materials},
  year = {2014},
  volume = {2},
  pages = {1-8},
  doi = {http://doi.org/10.1063/1.4897353}
}
De Paz-Simon, H., Chemtob, A., Croutxé-Barghorn, C., Rigolet, S., Michelin, L., Vidal, L. and Lebeau, B. Periodic Mesostructured Silica Films Made Simple Using UV Light 2014 J. Phys. Chem. C
Vol. 118(9)The Journal of Physical Chemistry C, pp. 4959-4966 
article DOI URL 
Abstract: Recent research has shown that silica/surfactant self-assembly combined with photoacid-catalyzed sol?gel polymerization can direct the formation of disordered mesoporous silica films. Using only a mixture of photoacid generator (PAG), amphiphilic surfactant (PEO-b-PPO-b-PEO), and methoxy oligomeric precursor, this original UV-driven method is fast and obviates the need of sol preparation and volatile compounds. Here, we report a rational basis to promote a disorder-to-order transition through the control of relative humidity (RH) and irradiance. Above a threshold RH of 35%, a long-range organization is promoted by greater interactions between the water-enriched silica phase and the PEO block. Alternatively, mesophase rearrangement and ordering are achieved by decreasing the irradiance below a limiting value (150 mW/cm2) so as to minimize the condensation rate. These two strategies show that the fundamental driving force for the creation of well-ordered hybrid mesostructures can be described both on thermodynamic and kinetic grounds. Subsequently, these optimized reaction conditions are exploited to tailor the final mesophase (hexagonal, lamellar, cubic) at different template/inorganic ratios. In a last part, the photoinduced mesostructuration mechanism is elucidated for model lamellar films using X-ray diffraction and Fourier transform infrared spectroscopy. Recent research has shown that silica/surfactant self-assembly combined with photoacid-catalyzed sol?gel polymerization can direct the formation of disordered mesoporous silica films. Using only a mixture of photoacid generator (PAG), amphiphilic surfactant (PEO-b-PPO-b-PEO), and methoxy oligomeric precursor, this original UV-driven method is fast and obviates the need of sol preparation and volatile compounds. Here, we report a rational basis to promote a disorder-to-order transition through the control of relative humidity (RH) and irradiance. Above a threshold RH of 35%, a long-range organization is promoted by greater interactions between the water-enriched silica phase and the PEO block. Alternatively, mesophase rearrangement and ordering are achieved by decreasing the irradiance below a limiting value (150 mW/cm2) so as to minimize the condensation rate. These two strategies show that the fundamental driving force for the creation of well-ordered hybrid mesostructures can be described both on thermodynamic and kinetic grounds. Subsequently, these optimized reaction conditions are exploited to tailor the final mesophase (hexagonal, lamellar, cubic) at different template/inorganic ratios. In a last part, the photoinduced mesostructuration mechanism is elucidated for model lamellar films using X-ray diffraction and Fourier transform infrared spectroscopy.
BibTeX:
@article{DePaz-Simon2014,
  author = {De Paz-Simon, Héloïse and Chemtob, Abraham and Croutxé-Barghorn, Céline and Rigolet, Séverinne and Michelin, Laure and Vidal, Loïc and Lebeau, Bénédicte},
  title = {Periodic Mesostructured Silica Films Made Simple Using UV Light},
  booktitle = {The Journal of Physical Chemistry C},
  journal = {J. Phys. Chem. C},
  publisher = {American Chemical Society},
  year = {2014},
  volume = {118},
  number = {9},
  pages = {4959--4966},
  url = {http://dx.doi.org/10.1021/jp410518k},
  doi = {http://doi.org/10.1021/jp410518k}
}
Derible, A., Yang, Y.C., Toy, P.H., Becht, J.M. and Le Drian, C. A bifunctional palladated rasta resin for Mizorold-Heck reactions 2014 Tetrahedron Letters
Vol. 55(31), pp. 4331-4333 
article DOI  
Abstract: Bifunctional palladated rasta resins 2b and 2c bearing both phosphino and basic amino groups have been successfully used for Mizoroki-Heck reactions between aryl iodides and alkenes without adding a soluble base. We have also shown that 2c can be easily regenerated after reaction and reused. To the best of our knowledge, this work represents the first use of a bifunctional palladated polymer for a C-C bond forming reaction. (C) 2014 Elsevier Ltd. All rights reserved.
BibTeX:
@article{Derible2014,
  author = {Derible, A. and Yang, Y. C. and Toy, P. H. and Becht, J. M. and Le Drian, C.},
  title = {A bifunctional palladated rasta resin for Mizorold-Heck reactions},
  journal = {Tetrahedron Letters},
  year = {2014},
  volume = {55},
  number = {31},
  pages = {4331--4333},
  doi = {http://doi.org/10.1016/j.tetlet.2014.06.012}
}
Derible, A., Diebold, C., Dentzer, J., Gadiou, R., Becht, J.-M. and Le Drian, C. A Palladium Catalyst Supported on Carbon-Coated Cobalt Nanoparticles - Preparation of Palladium-Free Biaryls by Suzuki-Miyaura Reactions in Ethanol 2014 Eur. J. Org. Chem.
Vol. 2014(34), pp. 7699-7706 
article URL 
Abstract: The preparation of a heterogeneous Pd catalyst supported on carbon-coated magnetic nanoparticles (NPs) bearing 4-(diphenylphosphinomethyl)phenyl groups is discussed. These NPs were initially prepared by chemical vapour deposition (CVD) of carbon on preformed Co NPs; however, the particles prepared in one step by reducing flame synthesis were more appropriate for functionalization. The Pd catalyst was then prepared by three simple steps. We show that Suzuki-Miyaura couplings can be efficiently performed in the presence of very low amounts of supported Pd, usually 50 μequiv. Finally, the Pd leaching was very low: in most cases only 1 μequiv. of Pd is found in the reaction medium (which amounts to less than 1 ppm of the product). Compared to other catalysts supported on magnetic particles, this catalyst is very simple to prepare even in large quantities and is easy to recover completely owing to the high magnetic saturation of the Co nucleus. To the best of our knowledge, it is the simplest and the most-active Pd catalyst supported on carbon-coated Co nanoparticles for Suzuki-Miyaura reactions. The reusability of the catalyst was also ascertained.
BibTeX:
@article{Derible2014a,
  author = {Derible, Antoine and Diebold, Carine and Dentzer, Joseph and Gadiou, Roger and Becht, Jean-Michel and Le Drian, Claude},
  title = {A Palladium Catalyst Supported on Carbon-Coated Cobalt Nanoparticles - Preparation of Palladium-Free Biaryls by Suzuki-Miyaura Reactions in Ethanol},
  journal = {Eur. J. Org. Chem.},
  publisher = {WILEY-VCH Verlag},
  year = {2014},
  volume = {2014},
  number = {34},
  pages = {7699--7706},
  url = {http://dx.doi.org/10.1002/ejoc.201403038}
}
Dhainaut, J., Chappaz, A., Bernard, D., Chaumeil, H., Daou, J., Defoin, A., Rouleau, L., Bats, N., Harbuzaru, B. and Patarin, J. Synthesis of a New Diaazacrown Ether Compound Interconnected with an Azacrown Ether and Decorated with a Long Lipophilic Chain 2014 Synthetic Communications
Vol. 44(13)Synthetic Communications, pp. 1888-1892 
article DOI URL 
Abstract: Abstract The synthesis of an original compound consisting of an azacrown ether interconnected with a diazacrown ether bearing an alkyl chain is described herein. This derivative is promising for numerous applications. Abstract The synthesis of an original compound consisting of an azacrown ether interconnected with a diazacrown ether bearing an alkyl chain is described herein. This derivative is promising for numerous applications.
BibTeX:
@article{Dhainaut2014,
  author = {Dhainaut, Jérémy and Chappaz, Alban and Bernard, Didier and Chaumeil, Hélène and Daou, Jean and Defoin, Albert and Rouleau, Loïc and Bats, Nicolas and Harbuzaru, Bogdan and Patarin, Joël},
  title = {Synthesis of a New Diaazacrown Ether Compound Interconnected with an Azacrown Ether and Decorated with a Long Lipophilic Chain},
  booktitle = {Synthetic Communications},
  journal = {Synthetic Communications},
  publisher = {Taylor & Francis},
  year = {2014},
  volume = {44},
  number = {13},
  pages = {1888--1892},
  url = {http://dx.doi.org/10.1080/00397911.2013.875211},
  doi = {http://doi.org/10.1080/00397911.2013.875211}
}
Dietlin, C., Podgorska-Golubska, M. and Andrzejewska, E. The efficiency of photoinitiators in ionic liquids 2014 Journal of Photochemistry and Photobiology A-chemistry
Vol. 281, pp. 8-17 
article DOI  
Abstract: In this work, efficiency of initiation of the photopolymerization in ionic liquids (ILs) by four Type I photoinitiators (Pls) was investigated. The influence of the ILs on the initiation process was determined by investigation of the polymerization kinetics and by spectroscopic and photolysis studies. The polymerization initiated by three of the tested Pls proceeded faster in ionic liquids, whereas the efficiency of the photoinitiator depended strongly on the structure of the ionic liquid. In one case, (2-methyl-4 '(methylthio)-2-morpholinopropiophenone), there was a significant reduction in the reaction rate, which resulted from a drastic decrease in the quantum yield of photolysis of this photoinitiator in ionic liquids. The results obtained suggest that for every composition containing an ionic liquid, the photoinitiator should be matched individually. (C) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{Dietlin2014,
  author = {Dietlin, C. and Podgorska-Golubska, M. and Andrzejewska, E.},
  title = {The efficiency of photoinitiators in ionic liquids},
  journal = {Journal of Photochemistry and Photobiology A-chemistry},
  year = {2014},
  volume = {281},
  pages = {8--17},
  doi = {http://doi.org/10.1016/j.jphotochem.2014.03.005}
}
Dinh, M.T.N., Rajbhandari, P., Lancelot, C., Blanchard, P., Lamonier, C., Bonne, M., Royer, S., Dumeignil, F. and Payen, E. Tuning Hydrodesulfurization Active-Phase Dispersion using Optimized Mesoporous Titania-Doped Silica Supports 2014 Chemcatchem
Vol. 6(1), pp. 328-338 
article DOI  
Abstract: Solids composed of TiO2 nano-crystallites (10-40wt%) dispersed in an SBA-15 matrix were synthesised and used as hydrodesulfurisation (HDS) active-phase supports. Well-dispersed polymolybdate species were detected by Raman spectroscopy on all the CoMo-based oxidic precursors. Undesirable bulk CoMoO4 mixed oxide was also detected on the surface of low-TiO2-content materials, which suggests the enhancement of the Mo oxidic species dispersion as a result of the presence of TiO2. After activation under H-2/H2S, the obtained catalysts were tested in the HDS of thiophene. An optimum conversion was observed for the catalyst supported on the solid that contained 20wt% TiO2, which outperformed the homologous samples supported on TiO2 and SBA-15. This clearly highlights the beneficial effect of using such nano-TiO2-SBA-15 composite supports, in which SBA-15 confers adequate textural properties to the system, and the active phase benefits from the dispersive effect of TiO2.
BibTeX:
@article{Dinh2014,
  author = {Dinh, M. T. N. and Rajbhandari, P. and Lancelot, C. and Blanchard, P. and Lamonier, C. and Bonne, M. and Royer, S. and Dumeignil, F. and Payen, E.},
  title = {Tuning Hydrodesulfurization Active-Phase Dispersion using Optimized Mesoporous Titania-Doped Silica Supports},
  journal = {Chemcatchem},
  year = {2014},
  volume = {6},
  number = {1},
  pages = {328--338},
  doi = {http://doi.org/10.1002/cctc.201300521}
}
Dubois, M., Guerin, K., Ahmad, Y., Batisse, N., Mar, M., Frezet, L., Hourani, W., Bubendorff, J.L., Parmentier, J., Hajjar-Garreau, S. and Simon, L. Thermal exfoliation of fluorinated graphite 2014 Carbon
Vol. 77, pp. 688-704 
article DOI  
Abstract: The thermal exfoliation of graphite fluoride was investigated using two starting materials: fluorinated HOPG and powdered room temperature graphite fluoride (RTGF) post-treated in pure F-2 gas in order to adjust the relative contents of intercalated species, the carbon hybridization and the C-F bonding. Firstly, the thermal exfoliation of HOPG sample (of composition CF0.57) at the nanoscale is highlighted using scanning tunneling microscopy (STM). Such process involves a defluorination, which is accelerated by disruption of the graphene sheets. Similar breaking occurs during the exfoliation of post-treated RTGF and evolves CF4 and C2F6 gases. Moreover, the exfoliation using a thermal shock is assisted by the fast deintercalation of the catalyst species in the region where the covalence of the C-F bonds is weakened. In such way, exfoliation occurs with the quasi-total defluorination. (C) 2014 Elsevier Ltd. All rights reserved.
BibTeX:
@article{Dubois2014,
  author = {Dubois, M. and Guerin, K. and Ahmad, Y. and Batisse, N. and Mar, M. and Frezet, L. and Hourani, W. and Bubendorff, J. L. and Parmentier, J. and Hajjar-Garreau, S. and Simon, L.},
  title = {Thermal exfoliation of fluorinated graphite},
  journal = {Carbon},
  year = {2014},
  volume = {77},
  pages = {688--704},
  doi = {http://doi.org/10.1016/j.carbon.2014.05.074}
}
Dumur, F., Lepeltier, M., Siboni, H., Xiao, P., Graff, B., Lalevee, J., Gigmes, D. and Aziz, H. Pure red phosphorescent OLED (PhOLED) based on a cyclometalated iridium complex with a dibenzoylmethane (dbm) moiety as the ancillary ligand 2014 Thin Solid Films
Vol. 562, pp. 530-537 
article DOI  
Abstract: A neutral heteroleptic iridium(III) complex bis(1-phenylisoquinoline) (dibenzoylmethane)iridium(III) Ir(piq)2(dbm) bearing a dibenzoylmethane (dbm) moiety as the ancillary ligand has been designed and investigated as an emitter in phosphorescent organic light emitting devices (PhOLEDs). To date, the family of dbm based complexes has only been scarcely investigated in OLEDs and only one complex of this family has been tested in electroluminescent devices. Interestingly, pure red devices were obtained with this emitter. PhOLEDswere fabricated at different dopant concentrations and the best device performances were obtained in the device with 8wt.% dopant concentration. Ir(piq)2(dbm) was characterized by UV-visible absorption and photoluminescence spectroscopy, cyclic voltammetry and theoretical calculations were also performed to support our experimental results.
BibTeX:
@article{Dumur2014a,
  author = {Dumur, F. and Lepeltier, M. and Siboni, H.Z. and Xiao, P. and Graff, B. and Lalevee, J. and Gigmes, D. and Aziz, H.},
  title = {Pure red phosphorescent OLED (PhOLED) based on a cyclometalated iridium complex with a dibenzoylmethane (dbm) moiety as the ancillary ligand},
  journal = {Thin Solid Films},
  year = {2014},
  volume = {562},
  pages = {530-537},
  doi = {http://doi.org/10.1016/j.tsf.2014.04.096}
}
Dumur, F., Beouch, L., Tehfe, M.-A., Contal, E., Lepeltier, M., Wantz, G., Graff, B., Goubard, F., Mayer, C.R., Lalevee, J. and Gigmes, D. Low-cost zinc complexes for white organic light-emitting devices 2014 Thin Solid Films
Vol. 564, pp. 351-360 
article URL 
Abstract: A series of blue fluorescent Zn (II) tetradentate Schiff base complexes has been designed and synthesized for applications in organic light-emitting diodes. The five complexes were investigated as dopant materials or as single emitters of multilayered p-i OLEDs. White OLEDs were achieved using these compounds as dopants of 4,4′,4″-tris(N-carbazolyl)triphenylamine and best devices exhibited a high quality white-light emission with remarkable CIE (Commission Internationale de l'Eclairage) coordinates (0.33, 0.34). When used as single emitters, sky-blue and blue electroluminescent devices were prepared, except with one complex that gave yellow OLEDs. Optical properties of these complexes were examined by UV-visible absorption and luminescence spectroscopy. Their electrochemical properties are also reported. These results open the route to the development of cost-effective complexes for white organic light-emitting devices applications.
BibTeX:
@article{Dumur2014b,
  author = {Dumur, Frédéric and Beouch, Layla and Tehfe, Mohamad-Ali and Contal, Emmanuel and Lepeltier, Marc and Wantz, Guillaume and Graff, Bernadette and Goubard, Fabrice and Mayer, Cédric R. and Lalevee, Jacques and Gigmes, Didier},
  title = {Low-cost zinc complexes for white organic light-emitting devices},
  journal = {Thin Solid Films},
  year = {2014},
  volume = {564},
  pages = {351--360},
  url = {http://pubget.com/paper/pgtmp_20fd5c0f355035c28a53b3964165a568/low-cost-zinc-complexes-for-white-organic-light-emitting-devices}
}
Dumur, F., Lepeltier, M., Zamani Siboni, H., Xiao, P., Graff, B., Morlet-Savary, F., Lalevee, J., Gigmes, D. and Aziz, H. Phosphorescent organic light-emitting devices (PhOLEDs) based on 1-methyl-3-propyl-5-(2,4,5-trifluorophenyl)-1H-1,2,4-triazole as the cyclometalated ligand: Influence of the ancillary ligand on the emissive properties 2014 Synthetic Metals
Vol. 195(0), pp. 312-320 
article URL 
Abstract: Abstract Two heteroleptic iridium complexes have been designed with 1-methyl-3-propyl-5-(2,4,5-trifluorophenyl)-1H-1,2,4-triazole as the cyclometalated ligand and acetylacetone (acac) or dibenzoylmethane (dbm) as the ancillary ligands. Interestingly, when tested as emitters for phosphorescent OLEDs (PhOLEDs), these two isostructural complexes that only have varying ancillary ligands exhibited completely different behaviors in devices. Notably, highly efficient PhOLEDs were only obtained with the complex bearing dbm as the ancillary ligand. To get a deeper insight in this unexpected behavior, TD-DFT calculations were carried out. The optical properties of the two complexes (UV-vis absorption and photoluminescence) and their electrochemical behaviors were also studied.
BibTeX:
@article{Dumur2014c,
  author = {Dumur, Frédéric and Lepeltier, Marc and Zamani Siboni, Hossein and Xiao, Pu and Graff, Bernadette and Morlet-Savary, Fabrice and Lalevee, Jacques and Gigmes, Didier and Aziz, Hany},
  title = {Phosphorescent organic light-emitting devices (PhOLEDs) based on 1-methyl-3-propyl-5-(2,4,5-trifluorophenyl)-1H-1,2,4-triazole as the cyclometalated ligand: Influence of the ancillary ligand on the emissive properties},
  journal = {Synthetic Metals},
  year = {2014},
  volume = {195},
  number = {0},
  pages = {312--320},
  url = {http://www.sciencedirect.com/science/article/pii/S0379677914002264}
}
Dumur, F., Lepeltier, M., Siboni, H.Z., Xiao, P., Graff, B., Lalevee, J., Gigmes, D. and Aziz, H. Concentration-insensitive phosphorescent organic light emitting devices (PhOLEDs) for easy manufacturing 2014 Journal of Luminescence
Vol. 151, pp. 34-40 
article DOI  
BibTeX:
@article{Dumur2014d,
  author = {Dumur, F. and Lepeltier, M. and Siboni, H. Z. and Xiao, P. and Graff, B. and Lalevee, J. and Gigmes, D. and Aziz, H.},
  title = {Concentration-insensitive phosphorescent organic light emitting devices (PhOLEDs) for easy manufacturing},
  journal = {Journal of Luminescence},
  year = {2014},
  volume = {151},
  pages = {34--40},
  doi = {http://doi.org/10.1016/j.jlumin:2014.01.073}
}
Dutournie, P., Limousy, L., Blel, W., Deon, S. and Fievet, P. Understanding of Ion Transport in a Na-Mordenite Membrane: Use of Numerical Modeling To Estimate Surface-Solute Interactions in the Pore 2014 Industrial & Engineering Chemistry Research
Vol. 53(19), pp. 8221-8227 
article DOI  
Abstract: A mordenite membrane was prepared and surface characterizations were performed on the synthesized mordenite (as powder form). The surface charge remained constant when mordenite powder was in contact with the studied solutions. A pore diameter of 5.8 x 10(-9) m was estimated. Filtration tests of single salt-water solutions (NaCl, NaF, and Na2SO4) were carried with the mordenite membrane. No rejection was observed. After an alkaline treatment, the rejections were observed: NaF = Na2SO4 = 5-6%, while NaCl = 0%. New filtration tests of mixed salt-water solutions were carried out (Na2SO4 + NaCl and Na2SO4 + NaF). The sulfate ion was retained by a majority (up to 16%) whatever the halide ion in solution. The rejection rate of sulfate ion in mixtures decreases with the applied pressure, which actually cannot be explained (no observable polarization layer effect). A preferential transport is observed for chloride ions and the rejection rate of the fluoride ions remained constant. A numerical modeling (Nernst-Planck approach) was used to understand the modifications due to the alkaline treatment. A significant modification of dielectric effects is observed, which completely modified the filtration properties of the Na-mordenite membrane.
BibTeX:
@article{Dutournie2014,
  author = {Dutournie, P. and Limousy, L. and Blel, W. and Deon, S. and Fievet, P.},
  title = {Understanding of Ion Transport in a Na-Mordenite Membrane: Use of Numerical Modeling To Estimate Surface-Solute Interactions in the Pore},
  journal = {Industrial & Engineering Chemistry Research},
  year = {2014},
  volume = {53},
  number = {19},
  pages = {8221--8227},
  doi = {http://doi.org/10.1021/ie5007933}
}
Dutournie, P., Limousy, L., Blel, W., Deon, S. and Fievet, P. Separation of binary ionic solutions with a low cut-off UF membrane : Use of numerical modelling to estimate surface-solute interactions in the Pore 2014 industrial & Engineering Chemistry Research
Vol. 53(19), pp. 8221-8227 
article DOI  
Abstract: A mordenite membrane was prepared and surface characterizations were performed on the synthesized mordenite (as powder form). The surface charge remained constant when mordenite powder was in contact with the studied solutions. A pore diameter of 5.8 × 10−9 m was estimated. Filtration tests of single salt−water solutions (NaCl, NaF, and Na2SO4) were carried with the mordenite membrane. No rejection was observed. After an alkaline treatment, the rejections were observed: NaF = Na2SO4 = 5−6%, while NaCl = 0%. New filtration tests of mixed salt−water solutions were carried out (Na2SO4 + NaCl and Na2SO4 + NaF). The sulfate ion was retained by a majority (up to 16%) whatever the halide ion in solution. The rejection rate of sulfate ion in mixtures decreases with the applied pressure, which actually cannot be explained (no observable polarization layer effect). A preferential transport is observed for chloride ions and the rejection rate of the fluoride ions remained constant. A numerical modeling (Nernst−Planck approach) was used to understand the modifications due to the alkaline treatment. A significant modification of dielectric effects is observed, which completely modified the filtration properties of the Na−mordenite membrane.
BibTeX:
@article{Dutournie2014a,
  author = {Dutournie, P. and Limousy, L. and Blel, W. and Deon, S. and Fievet, P.},
  title = {Separation of binary ionic solutions with a low cut-off UF membrane : Use of numerical modelling to estimate surface-solute interactions in the Pore},
  journal = {industrial & Engineering Chemistry Research},
  year = {2014},
  volume = {53},
  number = {19},
  pages = {8221-8227},
  doi = {dx.doi.org/10.1021/ie5007933}
}
Elmay, Y., Jeguirim, M., Dorge, S., Trouve, G. and Said, R. Evaluation of date palm residues combustion in fixed bed laboratory reactor: A comparison with sawdust behaviour 2014 Renewable Energy
Vol. 62, pp. 209-215 
article DOI  
Abstract: Combustion tests of five date palm Tunisian residues, namely: Date Palm Leaflets (DPL), Date Palm Rachis (DPR), Date Palm Trunk (DPT), Date Stones (DS) and Fruit-stalk Prunings (FP), were performed in a laboratory scale furnace. Gaseous emissions such as CO2, CO, VOC, NOx and SO2, were analysed at 600 degrees C under 30-60 NL/h flow rate. Obtained results were compared with sawdust combustion behaviour in order to select the most convenient biofuel for an application in domestic boiler installations. Combustion tests show that ignition delay and combustion time reaction are independent of the date palm residue. However, gaseous products emission rates and factors are correlated to the sample characteristics such as carbon, nitrogen and sulphur contents as well as fixed carbon and volatile matters contents. In order to optimize date palm residues combustion by decreasing unburnt gaseous emissions, special attention should be given to the design of the secondary air supply. (C) 2013 Elsevier Ltd. All rights reserved.
BibTeX:
@article{Elmay2014,
  author = {Elmay, Y. and Jeguirim, M. and Dorge, S. and Trouve, G. and Said, R.},
  title = {Evaluation of date palm residues combustion in fixed bed laboratory reactor: A comparison with sawdust behaviour},
  journal = {Renewable Energy},
  year = {2014},
  volume = {62},
  pages = {209--215},
  doi = {http://doi.org/10.1016/j.renene.2013.07.007}
}
Fouassier, J. and Lalevee, J. Photochemical production of interpenetrating polymer networks; Simultaneous initiation of radical and cationic polymerization reactions 2014
Vol. 6(10)Polymers, pp. 2588-2610 
article URL 
Abstract: In this paper, we propose to review the ways to produce, through photopolymerization, interpenetrating polymer networks (IPN) based, e.g., on acrylate/epoxide or acrylate/vinylether blends and to outline the recent developments that allows a one-step procedure (concomitant radical/cationic polymerization), under air or in laminate, under various irradiation conditions (UV/visible/near IR; high/low intensity sources; monochromatic/polychromatic sources; household lamps/laser diodes/Light Emitting Diodes (LEDs)). The paper illustrates the encountered mechanisms and the polymerization profiles. A short survey on the available monomer systems and some brief examples of the attained final properties of the IPNs is also provided. © 2014 by the authors.
BibTeX:
@article{Fouassier2014,
  author = {Fouassier, J.P. and Lalevee, J.},
  title = {Photochemical production of interpenetrating polymer networks; Simultaneous initiation of radical and cationic polymerization reactions},
  booktitle = {Polymers},
  year = {2014},
  volume = {6},
  number = {10},
  pages = {2588--2610},
  url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84910041509&doi=10.3390%2fpolym6102588&partnerID=40&md5=79b09322b6327968c317a7983782b224}
}
Fouhaili, B.E.L., Dietlin, C., Allonas, X., Ibrahim, A., Delaite, C. and Croutxe-Barghorn, C. Study and optimization of water repellence stability in fluoroacrylate photopolymers 2014 Progress In Organic Coatings
Vol. 77(6), pp. 1030-1036 
article DOI  
Abstract: Fluoropolymers have attracted a lot of attention in the past 20 years mainly due to their hydrophobic properties. Unfortunately, they have also shown some stability issues mainly in hot water due to the easy disorganization of the fluorine chains. In this paper Confocal Raman Microscopy (CRM) has been used as an indirect probe to optimize the fluoroacrylate content in an acrylic photocurable resin in order to reduce the effect of hot water. Advancing and receding contact angles have also been measured to characterize the surface repellence both before and after immersion in hot water. Results show that despite an improvement of the stability of the fluoroacrylate coating with a careful selection of the concentration range, water still has a negative effect on the surface properties of the coating. This effect can be partly counterbalanced by successive thermal annealings at 100 degrees C which help to stabilize the hydrophobicity of the coating. (C) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{Fouhaili2014,
  author = {Fouhaili, B. E. L. and Dietlin, C. and Allonas, X. and Ibrahim, A. and Delaite, C. and Croutxe-Barghorn, C.},
  title = {Study and optimization of water repellence stability in fluoroacrylate photopolymers},
  journal = {Progress In Organic Coatings},
  year = {2014},
  volume = {77},
  number = {6},
  pages = {1030--1036},
  doi = {http://doi.org/10.1016/j.porgcoat.2014.02.012}
}
Ghimbeu Camelia Matei, C., Vidal, L., Delmote, L., Le Meins, J.M. and Vix-Guterl, C. Catalyst-free soft-template synthesis of ordered mesoporous carbon tailored using phloroglucinol/ glyoxylic acid environmentally friendly precursors 2014 Green Chem.
Vol. 16, pp. 3079-3088 
article  
Abstract: Carbon porous materials with a periodically ordered pore structure, controlled pore size and geometry and high thermal stability are synthesized using self-assembly of environmentally friendly phloroglucinol/ glyoxylic acid precursors with an amphiphilic triblock copolymer template. Glyoxylic acid, a plant-derived compound, is used for the first time as a substituent of carcinogen formaldehyde usually employed in such a synthesis. Thanks to the double functionality, i.e., aldehyde and carboxylic acid, glyoxylic acid plays not only the role of a cross-linker for the formation of the resin but also the role of a catalyst by creation of H-bonding or specific reactions between the precursors. Hence, no extra catalyst such as strong acids (HCl) or bases (NaOH) is any longer required. Carbon films and powders were successfully prepared with high surface areas (up to 800 m2 g−1), high porous volume (up to 1 cm3 g−1), tunable pore size (0.6 nm to 7 nm) and various pore architectures (hexagonal, cubic, and ink-bottle) by tuning the precursor ratio and by applying different manufacturing engineering strategies. Insights on the synthesis mechanism of the phenolic resin and carbon mesostructures were obtained using several analysis techniques, i.e., nuclear magnetic resonance (13C NMR) and FTIR spectroscopy, temperature programmed desorption coupled with mass spectrometry (TPD-MS) and thermo-gravimetric analysis (TGA).
BibTeX:
@article{Ghimbeu2014,
  author = {Ghimbeu, Camelia Matei, C. and Vidal L. and Delmote, L. and Le Meins, J. M. and Vix-Guterl, C.},
  title = {Catalyst-free soft-template synthesis of ordered mesoporous carbon tailored using phloroglucinol/ glyoxylic acid environmentally friendly precursors},
  journal = {Green Chem.},
  year = {2014},
  volume = {16},
  pages = {3079-3088}
}
Ghimbeu Camelia Matei, C., Le Meins, J.M., Zlotea, C., Vidal, L., Schrodj, G., Latroche, M. and Vix-Guterl, C. Controlled synthesis of NiCo nanoalloys embedded in ordered porous carbon by a novel soft-template strategy 2014 Carbon
Vol. 67, pp. 260-272 
article DOI  
Abstract: A novel synthesis pathway is proposed in this work to prepare NiCo nanoalloy embedded in highly ordered porous carbons via a soft-template approach. This involves the multicomponent co-assembly of environmental friendly carbon precursors (phloroglucinol and glyoxal), amphiphilic copolymer Pluronic F127 as structure directing agent followed by metal precursor salts incorporation. This synthesis affords a good control of the alloy quantity, composition and particle size in the carbon matrix. The influence of the metal loading in the NiCo alloy and of two chelating agents, i.e., citric acid and oxalic acid on the physical-chemical characteristics of carbon NiCo materials was investigated. In the absence of chelating agents, the carbon NiCo hybrid materials have a 2-D hexagonally arranged pore structure, high surface area and porous volume. The NiCo nanoparticles are homogeneously distributed in the carbon network and they exhibit sizes between 30 and 40 nm depending on the Ni/Co ratio. The use of chelating agents allows downsizing the particle size to 15 nm and the modification of the hexagonally carbon structure into a worm-like one. The advantage of the present synthesized hybrids lays in the use of less expensive 3d transition metals than noble elements that may provide comparable effect on hydrogen sorption properties. (C) 2013 Elsevier Ltd. All rights reserved.
BibTeX:
@article{Ghimbeu2014a,
  author = {Ghimbeu, Camelia Matei, C. and Le Meins, J. M. and Zlotea, C. and Vidal, L. and Schrodj, G. and Latroche, M. and Vix-Guterl, C.},
  title = {Controlled synthesis of NiCo nanoalloys embedded in ordered porous carbon by a novel soft-template strategy},
  journal = {Carbon},
  year = {2014},
  volume = {67},
  pages = {260--272},
  doi = {http://doi.org/10.1016/j.carbon.2013.09.089}
}
Ghimbeu Camelia Matei, C., Malak-Polaczyk, A., Frackowiak, E. and Vix-Guterl, C. Template-derived high surface area λ-MnO2 for supercapacitor applications 2014 Journal of Applied Electrochemistry
Vol. 44Journal of Applied Electrochemistry, pp. 123-132 
article URL 
Abstract: The synthesis of lambda-manganese oxide (λ-MnO2) with a developed porosity and an ordered and interconnected pore structure used as supercapacitor electrode is reported for the first time in the present study. A spinel-type LiMn2O4 material was first prepared by hard-templating pathway using KIT-6 mesoporous silica as a template and metal nitrates as precursors, which was subsequently acid treated leading to λ-MnO2 material. The materials exhibit high surface area (up to 150 m2 g−1), defined pore size distribution with three-dimensional interconnected pores, and crystalline pore walls. The material textural properties as well as the morphologies vary considerably with the synthetic conditions. The as-synthesized porous λ-MnO2 materials exhibit a noticeably better performance (120 F g−1) at high constant currents (1 A g−1) than commercial derived λ-MnO2 (11 F g−1). The extended surface area and the porous and three-dimensional interconnected structures along with the specific morphology significantly enhance the lithium diffusion through the particles and allow for a more effective use of this pseudocapacitive material as an electrode in supercapacitor.
BibTeX:
@article{Ghimbeu2014b,
  author = {Ghimbeu, Camelia Matei, Camelia and Malak-Polaczyk, Agnieszka and Frackowiak, Elzbieta and Vix-Guterl, Cathie},
  title = {Template-derived high surface area λ-MnO2 for supercapacitor applications},
  booktitle = {Journal of Applied Electrochemistry},
  journal = {Journal of Applied Electrochemistry},
  publisher = {Springer Netherlands},
  year = {2014},
  volume = {44},
  pages = {123-132},
  url = {http://dx.doi.org/10.1007/s10800-013-0614-6}
}
Giljean, S., Bigerelle, M. and Anselme, K. Roughness Statistical Influence on Cell Adhesion Using Profilometry and Multiscale Analysis 2014 Scanning
Vol. 36(1), pp. 2-10 
article DOI  
Abstract: In this study, two series of 11 samples of TiAl6V4 titanium alloy and 316L stainless steel have been polished in an isotropic manner at different levels in order to quantify the influence of biomaterial roughness on cell behavior. Topography was measured by a tactile profilometer and a multiscale analysis has been carried out. Human osteoblasts have been cultured on those samples. It appears that roughness has no reproducible effect on the cell behavior except an influence on cell orientation on the wider grooves. As a conclusion, biomaterial surface damage, in the roughness range between R-a = 0.01 and 0.1 m, has no influence on cell-adhesion mechanisms when roughness is isotropic and groove width is inferior to a critical value. SCANNING 36:2-10, 2014. (c) 2012 Wiley Periodicals, Inc.
BibTeX:
@article{Giljean2014,
  author = {Giljean, S. and Bigerelle, M. and Anselme, K.},
  title = {Roughness Statistical Influence on Cell Adhesion Using Profilometry and Multiscale Analysis},
  journal = {Scanning},
  year = {2014},
  volume = {36},
  number = {1},
  pages = {2--10},
  doi = {http://doi.org/10.1002/sca.21061}
}
Gnecco, E., Nita, P., Casado, S., Pimentel, C., Mougin, K., Giordano, M.C., Repetto, D. and de Mongeot, F.B. Channeling motion of gold nanospheres on a rippled glassed surface 2014 Nanotechnology
Vol. 25(48), pp. 485302 
article DOI  
BibTeX:
@article{Gnecco2014,
  author = {Gnecco, E. and Nita, P. and Casado, S. and Pimentel, C. and Mougin, K. and Giordano, M. C. and Repetto, D. and de Mongeot, F. B.},
  title = {Channeling motion of gold nanospheres on a rippled glassed surface},
  journal = {Nanotechnology},
  year = {2014},
  volume = {25},
  number = {48},
  pages = {485302},
  doi = {http://doi.org/10.1088/0957-4484/25/48/485302}
}
Haidara, H. Wetting-mediated collective tubulation and pearling in confined vesicular drops of DDAB solutions 2014 Soft Matter
Vol. 10, pp. 9060-9469 
article DOI  
Abstract: Whether driven by external mechanical stresses (shear flow) or induced by membrane-active peptides and/or proteins, the collective growth of tubules in membranous fluids has seldom been reported. The pearling destabilization of these membranous tubules which requires an activation of the shape distortion, often induced by optical tweezers, membrane-active biomolecules or an electrical field, has also rarely been observed under mild experimental conditions. Here we report such events of collective tubulation and pearling destabilization in sessile drops of a didodecyl-dimethylammonium bromide (DDAB) vesicular solution that are confined by a surrounding oil medium. Based on the wetting dynamics and the features of the tubulation process, we show that the growth of the tubules here relies on a mechanism of "pinning-induced pulling" from the retracting drop, rather than the classical hydrodynamic fingering instability. We show that the whole tubulation process is driven by a strong coupling between the bulk properties of the ternary (DAAB/water/oil) system and the dynamics of wetting. Finally, we discuss the pearling destabilization of these tubules under vanishing static interface tension and quite mild tensile force arising from their pulling. We show that under those mild conditions, shape disturbances readily grow, either as pearling waves moving toward the drop-reservoir or as Rayleigh-type peristaltic modulations. Besides revealing singular non-Rayleigh pearling modes, this work also brings new insights into the flow dynamics in membranous tubules anchored to an infinite reservoir.
BibTeX:
@article{Haidara2014,
  author = {Haidara, H.},
  title = {Wetting-mediated collective tubulation and pearling in confined vesicular drops of DDAB solutions},
  journal = {Soft Matter},
  year = {2014},
  volume = {10},
  pages = {9060-9469},
  doi = {http://doi.org/10.1039/c4sm01579g}
}
Hakiki, N., Bubendorff, J., Pirri, C., Mechehoud, F., Mehdaoui, A. and Belhadji, M. Electrochemical and Structural Characterization of Nickel based Alloys Oxides 2014 Physics Procedia
Vol. 55(0)8th International Conference on Material Sciences, CSM8-ISM5, pp. 243-250 
article URL 
Abstract: Abstract The electrochemical and structural characterization of thermally grown oxides formed on nickel based alloys (type Inconel 600 and 690) at 350 °C and during different time was performed by impedance measurements and near field microscopy combining atomic force microscopy (AFM) and scanning Kelvin probe force microscopy (SKPFM). The impedance results allow discussing the influence of the oxidation time on the capacitance and the resistance of the oxide films. The results obtained by near field microscopy technique show that the film formed during low oxidation time has a small grain size and also a small surface roughness. The values of grain sizes determined in both cases along x- and y-axis are practically the same indicating a spherical shape of oxide grains and are slightly different between oxides formed on type inconel 600 and 690.
BibTeX:
@article{Hakiki2014,
  author = {Hakiki, N.E. and Bubendorff, J.L. and Pirri, C. and Mechehoud, F. and Mehdaoui, A. and Belhadji, M.},
  title = {Electrochemical and Structural Characterization of Nickel based Alloys Oxides},
  booktitle = {8th International Conference on Material Sciences, CSM8-ISM5},
  journal = {Physics Procedia},
  year = {2014},
  volume = {55},
  number = {0},
  pages = {243--250},
  url = {http://www.sciencedirect.com/science/article/pii/S1875389214000984}
}
Hamoudi, S.A., Hamdi, B., Brendle, J. and Kessaissia, Z. Adsorption of Lead by Geomaterial Matrix: Adsorption Equilibrium and Kinetics 2014 Separation Science and Technology
Vol. 49(9), pp. 1416-1426 
article DOI  
Abstract: Industrial activity generates huge amounts of waste, whose storage can lead to serious problems of groundwater pollution by infiltration of landfill leachates. Geomaterials used as water barriers may be a solution to this problem. This work is devoted to the elaboration of new geomaterials based on Algerian clay, activated carbon, cement, and polymer for containment of stored waste and the study of their performances towards inorganic pollutants. Thus we elaborated a set of three geomaterials GM1, GM2, and GM3 with various clay and activated carbon contents and whose polymer and cement compositions are maintained constant. The higher clay content (80%) was used in preparing GM1.The retention properties towards lead were assessed by the adsorption isotherms of geomaterials and their minerals constituents. The study of lead adsorption isotherms on geomaterials showed mainly that GM1, with the highest clay and lowest activated carbon contents and with the highest specific surface area, is very effective for trapping lead. Moreover, its adsorption capacity is pH-dependant; the highest Pb2+ amount adsorbed is obtained for pH12. On the other hand, it has been shown that the retention of lead is a result of the components contribution: clay, activated carbonm and cement.
BibTeX:
@article{Hamoudi2014,
  author = {Hamoudi, Souhila Ait and Hamdi, Boualem and Brendle, Jocelyne and Kessaissia, Zoubir},
  title = {Adsorption of Lead by Geomaterial Matrix: Adsorption Equilibrium and Kinetics},
  journal = {Separation Science and Technology},
  year = {2014},
  volume = {49},
  number = {9},
  pages = {1416--1426},
  doi = {http://doi.org/10.1080/01496395.2013.879313}
}
Hekmati, A.H., Khenoussi, N., Nouali, H., Patarin, J. and Drean, J.Y. Effect of nanofiber diameter on water absorption properties and pore size of polyamide-6 electrospun nanoweb 2014 Textile Research Journal
Vol. 84(19), pp. 2045-2055 
article DOI  
BibTeX:
@article{Hekmati2014,
  author = {Hekmati, A. H. and Khenoussi, N. and Nouali, H. and Patarin, J. and Drean, J. Y.},
  title = {Effect of nanofiber diameter on water absorption properties and pore size of polyamide-6 electrospun nanoweb},
  journal = {Textile Research Journal},
  year = {2014},
  volume = {84},
  number = {19},
  pages = {2045--2055},
  doi = {http://doi.org/10.1177/0040517514532160}
}
Heni, W., Vonna, L., Fioux, P., Vidal, L. and Haidara, H. Ultrasonic cavitation test applied to thin metallic films for assessing their adhesion with mercaptosilanes and surface roughness 2014 Journal of Materials Science
Vol. 49(19), pp. 6750-6761 
article DOI  
BibTeX:
@article{Heni2014,
  author = {Heni, W. and Vonna, L. and Fioux, P. and Vidal, L. and Haidara, H.},
  title = {Ultrasonic cavitation test applied to thin metallic films for assessing their adhesion with mercaptosilanes and surface roughness},
  journal = {Journal of Materials Science},
  year = {2014},
  volume = {49},
  number = {19},
  pages = {6750--6761},
  doi = {http://doi.org/10.1007/s10853-014-8369-y}
}
Hisler, V., Vonna, L., Le Houerou, V., Knopf, S., Gauthier, C., Nardin, M. and Haidara, H. Model Experimental Study of Scale Invariant Wetting Behaviors in Cassie-Baxter and Wenzel Regimes 2014 Langmuir
Vol. 30(31), pp. 9378-9383 
article DOI  
Abstract: In this work, we discuss quantitatively two basic relations describing the wetting behavior of microtopographically patterned substrates. Each of them contains scale invariant topographical parameters that can be easily expressed onto substrates decorated with specifically designed micropillars. The first relation discussed in this paper describes the contact angle hysteresis of water droplets in the Cassie-Baxter regime. It is shown that the energy at the origin of the hysteresis, that has to be overcome for moving the triple line, can be invariantly expressed for hexagonal pillars by varying the pillars width and interpillar distance. Identical contact angle hystereses are thus measured on substrates expressing this scale invariance for pillar widths and interpillar distances ranging from 4 to 128 mu m. The second relation we discuss concerns the faceting of droplets spreading on microtopographically patterned substrates. It is shown in this case that the condition for pinning of the triple line can be fulfilled by simultaneously varying the height of the pillars and the interpillar distance, leading to faceted droplets of similar morphologies. The invariance of these two wetting phenomena resulting from the simultaneous and homothetic variation of topographical parameters is demonstrated for a wide range of pattern dimensions. Our results show that either of those two wetting behaviors can be simply achieved by the proper choice of a dimensionless ratio of topographical length scales.
BibTeX:
@article{Hisler2014,
  author = {Hisler, V. and Vonna, L. and Le Houerou, V. and Knopf, S. and Gauthier, C. and Nardin, M. and Haidara, H.},
  title = {Model Experimental Study of Scale Invariant Wetting Behaviors in Cassie-Baxter and Wenzel Regimes},
  journal = {Langmuir},
  year = {2014},
  volume = {30},
  number = {31},
  pages = {9378--9383},
  doi = {http://doi.org/10.1021/la501225m}
}
Hourani, W., Rahimi, K., Botiz, I., Koch, F.P.V., Reiter, G., Lienerth, P., Heiser, T., Bubendorff, J.L. and Simon, L. Anisotropic charge transport in large single crystals of pi-conjugated organic molecules 2014 Nanoscale
Vol. 6(9), pp. 4774-4780 
article DOI  
Abstract: The electronic properties of organic semiconductors depend strongly on the nature of the molecules, their conjugation and conformation, their mutual distance and the orientation between adjacent molecules. Variations of intramolecular distances and conformation disturb the conjugation and perturb the delocalization of charges. As a result, the mobility considerably decreases compared to that of a covalently well-organized crystal. Here, we present electrical characterization of large single crystals made of the regioregular octamer of 3-hexyl-thiophene (3HT)(8) using a conductive-atomic force microscope (C-AFM) in air. We find a large anisotropy in the conduction with charge mobility values depending on the crystallographic orientation of the single crystal. The smaller conduction is in the direction of p-p stacking (along the long axis of the single crystal) with a mobility value in the order of 10(-3) cm(2) V-1 s(-1), and the larger one is along the molecular axis (in the direction normal to the single crystal surface) with a mobility value in the order of 0.5 cm(2) V-1 s(-1). The measured current-voltage (I-V) curves showed that along the molecular axis, the current followed an exponential dependence corresponding to an injection mode. In the p-p stacking direction, the current exhibits a space charge limited current (SCLC) behavior, which allows us to estimate the charge carrier mobility.
BibTeX:
@article{Hourani2014,
  author = {Hourani, W. and Rahimi, K. and Botiz, I. and Koch, F. P. V. and Reiter, G. and Lienerth, P. and Heiser, T. and Bubendorff, J. L. and Simon, L.},
  title = {Anisotropic charge transport in large single crystals of pi-conjugated organic molecules},
  journal = {Nanoscale},
  year = {2014},
  volume = {6},
  number = {9},
  pages = {4774--4780},
  doi = {http://doi.org/10.1039/c3nr05858a}
}
Jada, A. and Ait Akbour, R. Adsorption and Removal of Organic Dye at Quartz Sand-Water Interface. 2014 Oil & Gas Science and technology - Rev IFP Energies nouvelles
Vol. 69(3), pp. 405-413 
article DOI  
Abstract: Nous avons étudié le transport, la sorption et la désorption d’un cation organique (bleu de méthylène (BM)), à travers un milieu poreux constitué de particules de sable de quartz chargées négativement. Nous avons examiné l’influence des paramètres, tels que : la force ionique de la solution aqueuse, la vitesse de circulation, le pH de la phase aqueuse, la température du milieu et la nature des cations divalents métalliques présents en solution, sur le transport et le dépot du BM à travers le milieu poreux. Les mesures de la rétention du colorant ont été réalisées en utilisant la technique d’injection-échelon. Les résultats obtenus ont montré une diminution de la quantité de BM adsorbé sur le quartz lorsque le pH de la phase aqueuse diminue de 9,5 a` 4. Une baisse de la quantité de BM adsorbé a été également observée lorsque la force ionique ou le débit augmente. Cependant, l’augmentation de la température a conduit à une augmentation de la quantité de BM adsorbée, ce qui laisse supposer que l’adsorption du BM sur la surface de quartz est de nature endothermique. En pre´sence de cations divalents en solution (Ca2+, Cu2+, Zn2+ et Ba2+), la quantité retenue du colorant dépend de la nature du cation. L’ensemble de ces résultats, montre que l’adsorption du colorant basique est contrôlée par les interactions électrostatiques entre la surface négative du quartz et le polluant organique cationique.
BibTeX:
@article{Jada2013,
  author = {Jada, A. and Ait Akbour, R.},
  title = {Adsorption and Removal of Organic Dye at Quartz Sand-Water Interface.},
  journal = {Oil & Gas Science and technology - Rev IFP Energies nouvelles},
  year = {2014},
  volume = {69},
  number = {3},
  pages = {405-413},
  doi = {http://doi.org/10.2516/ogst/2013169}
}
A., JADA, Haidara, H. and C CaCO3 Film Formation on Hydrophobic Silicon Oxide Modified with HTS, and on Non-Modified Hydrophilic Silicon Oxide Surfaces 2014 J. Colloid Sci. Biotechnol.
Vol. 3, pp. 85-90 
article  
BibTeX:
@article{JADA2014,
  author = {JADA, A. and Haidara, H and C},
  title = {CaCO3 Film Formation on Hydrophobic Silicon Oxide Modified with HTS, and on Non-Modified Hydrophilic Silicon Oxide Surfaces},
  journal = {J. Colloid Sci. Biotechnol.},
  year = {2014},
  volume = {3},
  pages = {85-90}
}
Jada, A. A Special Issue on Inorganic Colloidal Particles, Synthesis, Surface Properties and Applications 2014 J. Colloid Sci. Biotechnol
Vol. 3, pp. 1-2 
article  
BibTeX:
@article{Jada2014a,
  author = {Jada, A.},
  title = {A Special Issue on Inorganic Colloidal Particles, Synthesis, Surface Properties and Applications},
  journal = {J. Colloid Sci. Biotechnol},
  year = {2014},
  volume = {3},
  pages = {1-2}
}
Jada, A., Ridaoui, H., Vidal, L. and Donnet, J.B. Control of carbon black aggregate size by using polystyrene-polyethylene oxide non ionic diblock copolymers 2014 Colloids and Surfaces A-physicochemical and Engineering Aspects
Vol. 458, pp. 187-194 
article DOI  
Abstract: The fine fraction of carbon black (CB) sample N234, initially prepared by the furnace process, was obtained by sieving and it was then dispersed in aqueous medium at various aqueous phase pH. Further, adsorption from water onto this non porous CB particles, of polystyrene-polyethylene oxide (PS-PEO), nonionic diblock copolymers, having molecular weights, M-w = 2000 and M-w = 4000 g/mol, were investigated at ambient temperature. For the bare CB particles, prepared in the absence of copolymers, the TEM micrographs show aggregates and/or agglomerates having sizes depending of the aqueous phase pH, and formed from fused primary particles having sizes in the range 13-17 nm. These aggregates develop intra-porosity that result from their branching shape. The CB bare particles prepared in acidic aqueous dispersion form mostly ellipsoidal agglomerates having sizes exceeding 500 nm. However, by increasing the pH of the medium from pH = 3 to pH = 10, and after drying the CB dispersion, aggregates shaped as "bunch" of grapes and having smaller sizes are observed by TEM. The microelectrophoresis studies of these dispersions indicate that the CB particles are positively and negatively surface charged at pH values, respectively, below and above the Isoelectrical point (IEP) which is about pH similar to 6. Such electrokinetic behavior of the CB aqueous dispersion results from the presence on the CB surface of acidic and basic functional groups. However, upon PS-PEO copolymers adsorption onto CB, reduction in the magnitude of zeta potential, and shift of the Isoelectrical point (IEP) to lower pH values were observed. Such IEP shift is related to the copolymer adsorption on the Stern layer and to the position of the shear plane in the electrical double layer. In addition, the copolymer adsorption was found to reduce the CB particle size achieving a minimum value in water of about 200 nm, resulting in sterically stable CB aqueous dispersions. (C) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{Jada2014b,
  author = {Jada, A. and Ridaoui, H. and Vidal, L. and Donnet, J. B.},
  title = {Control of carbon black aggregate size by using polystyrene-polyethylene oxide non ionic diblock copolymers},
  journal = {Colloids and Surfaces A-physicochemical and Engineering Aspects},
  year = {2014},
  volume = {458},
  pages = {187--194},
  doi = {http://doi.org/10.1016/j.colsurfa.2014.03.068}
}
Jahel, A., Ghimbeu Camelia Matei, C.M., Monconduit, L. and Vix-Guterl, C. Confined Ultrasmall SnO2 Particles in Micro/Mesoporous Carbon as an Extremely Long Cycle-Life Anode Material for Li-Ion Batteries 2014 Advanced Energy Materials
Vol. 4(11), pp. 1400025 
article DOI  
BibTeX:
@article{Jahel2014,
  author = {Jahel, A. and Ghimbeu, Camelia Matei, C. M. and Monconduit, L. and Vix-Guterl, C.},
  title = {Confined Ultrasmall SnO2 Particles in Micro/Mesoporous Carbon as an Extremely Long Cycle-Life Anode Material for Li-Ion Batteries},
  journal = {Advanced Energy Materials},
  year = {2014},
  volume = {4},
  number = {11},
  pages = {1400025},
  doi = {http://doi.org/10.1002/aenm.201400025}
}
Jahel, A., Darwiche, A., Ghimbeu Camelia Matei, C.C., Vix-Guterl, C. and Monconduit, L. High cycleability nano-GeO2/mesoporous carbon composite as enhanced energy storage anode material in Li-ion batteries 2014 Journal of Power Sources
Vol. 269(0), pp. 755-759 
article URL 
Abstract: Abstract A novel nano-GeO2/mesoporous carbon (GeO2/MC) composite material was prepared by in-situ decomposition of germanium ethoxide (Ge(OC2H5)4) infiltrated in a mesoporous carbon (MC) obtained by soft-templating procedure. With GeO2 (&lt;20 nm) homogeneously distributed in the carbon network, the GeO2/MC composite retains 93% of its initial charge capacity after 380 cycles at constant 1 C rate (1500 mA g−1) as electrode material vs. Li and shows high rate capability at variable current rates. A restructuration of the germanium phase into smaller particles during the first cycles is also evidenced. The composite presents a set of advantages such as low GeO2 content, convenient preparation approach and high coulombic efficiency (&gt;99%).
BibTeX:
@article{Jahel2014a,
  author = {Jahel, Ali and Darwiche, Ali and Ghimbeu, Camelia Matei, Camelia, Camélia and Vix-Guterl, Cathie and Monconduit, Laure},
  title = {High cycleability nano-GeO2/mesoporous carbon composite as enhanced energy storage anode material in Li-ion batteries},
  journal = {Journal of Power Sources},
  year = {2014},
  volume = {269},
  number = {0},
  pages = {755--759},
  url = {http://www.sciencedirect.com/science/article/pii/S0378775314010866}
}
Jasinski, F., Lobry, E., Chemtob, A., Croutxe-Barghorn, C., Vidal, L., Josien, L., Brendlé, J. and Criqui, A. Stripping the latex: the challenge of miniemulsion polymerization without initiator, costabilizer and surfactant 2014 Colloid and Polymer Science
Vol. 292(12), pp. 3095-3102 
article DOI URL 
Abstract: When finally processed to provide the function for which the latex was selected―binding, protecting, finishing―components such as surfactant, costabilizer or initiator become generally useless, not to say detrimental. In this study, we show that miniemulsion photopolymerization provides a suitable method to create latex without the apparent addition of these three compounds. Indeed, UV-driven monomer self-initiation can create initiating radicals without the aid of initiator, the fast in situ photogenerated polymer can hinder Ostwald ripening with the assistance of external costabilizer, and finally, UV-transparent clay can replace conventional surfactant to ensure colloidal stabilization. Each strategy has been developed individually before being combined together to end up with a unique miniemulsion procedure free of initiator, costabilizer and surfactant. Such approach paves the way to a simplified and environmentally improved pathway towards aqueous polymer dispersions.
BibTeX:
@article{Jasinski2014,
  author = {Jasinski, Florent and Lobry, Emeline and Chemtob, Abraham and Croutxe-Barghorn, Céline and Vidal, Loïc and Josien, Ludovic and Brendlé, Jocelyne and Criqui, Adrien},
  title = {Stripping the latex: the challenge of miniemulsion polymerization without initiator, costabilizer and surfactant},
  journal = {Colloid and Polymer Science},
  publisher = {Springer Berlin Heidelberg},
  year = {2014},
  volume = {292},
  number = {12},
  pages = {3095-3102},
  url = {http://dx.doi.org/10.1007/s00396-014-3355-0},
  doi = {http://doi.org/10.1007/s00396-014-3355-0}
}
Jeguirim, M., Elmay, Y., Limousy, L., Lajili, M. and Said, R. Devolatilization Behavior and Pyrolysis Kinetics of Potential Tunisian Biomass Fuels 2014 Environmental Progress & Sustainable Energy
Vol. 33(4), pp. 1452-1458 
article DOI  
BibTeX:
@article{Jeguirim2014,
  author = {Jeguirim, M. and Elmay, Y. and Limousy, L. and Lajili, M. and Said, R.},
  title = {Devolatilization Behavior and Pyrolysis Kinetics of Potential Tunisian Biomass Fuels},
  journal = {Environmental Progress & Sustainable Energy},
  year = {2014},
  volume = {33},
  number = {4},
  pages = {1452--1458},
  doi = {http://doi.org/10.1002/ep.11928}
}
Jeguirim, M., Bikai, J., Elmay, Y. and Limousy L. Limousy, L.E. Thermal characterization and pyrolysis kinetics of tropical Biomass feedstocks for energy recovery 2014 Energy for Sustainable Development
Vol. 23, pp. 188-192 
article DOI  
Abstract: This paper aims to analyse energy related properties, thermal degradation behaviour and devolatilization kinetics of five Cameroonian biomasses namely, Palm Kernel Shells (PKS), Mesocarp Fibres (PMF), Coffee Husk (CH), Corn Cob (CC) and Peanut Shell (PNS). The thermal degradation was performed using thermogravimetric analysis (TG). Different behaviours related to the presence of chemical constituents such as cellulose, hemicellulose and lignin were obtained. Comparison of the thermal characterization shows that PMF is the most interesting feedstock with the highest heating values and reactivity due to higher volatile content. Decomposition of TG data was analysed by applying diffusion and chemical reaction kinetic models. Obtained results show that biomass pyrolysis is represented by two successive steps. The devolatilization stage characterized by high weight loss rate is well described by diffusion reaction models. In contrast, the char formation stage characterized by low weight loss rate is well described by third order chemical reaction models.
BibTeX:
@article{Jeguirim2014a,
  author = {Jeguirim, M. and Bikai, J. and Elmay, Y. and Limousy, L. Limousy, L., E.},
  title = {Thermal characterization and pyrolysis kinetics of tropical Biomass feedstocks for energy recovery},
  journal = {Energy for Sustainable Development},
  year = {2014},
  volume = {23},
  pages = {188-192},
  doi = {http://doi.org/10.1016/j.esd.2014.09.009}
}
Jeguirim, M., limousy , L. and Dutournie, P. Pyrolysis kinetis and Physicochemical Properties of agropellets produced from spent ground coffee blended with conventional biomass 2014 Chemical Engineering Research and Design
Vol. 92, pp. 1876-1882 
article DOI  
Abstract: Spent coffee grounds (SCG), a processing by-product from the coffee industry, were evaluated as a potential feedstock for preparing agropellets for energy production. Hence, pure SCG and a SCG/sawdust blend were transformed into pellets. The latter thermal and chemical properties such as calorific value, ash content, bulk density, fixed carbon and elemental analysis were obtained. Thermogravimetric analyses were conducted in order to determine pyrolysis kinetics and combustion characteristics in order to study the agropellets performance. The obtained results show that SCG pellets thermal characteristics are in the same order as conventional biomasses such as sawdust. Moreover, blend 50% SCG/50% sawdust reaches the superior NF agropellets standard requirements which are essential to sell this agropellets in the French market. Analysis of the thermal degradation shows that SCG and its blend follow the usual behavior of lignocellulosic materials. Comparison of the combustion characteristics shows a higher reactivity of the blend comparing to pure SCG and sawdust. Such behavior might relate to heterogeneous structure and mutual interaction of the individual components of SCG and sawdust. Pyrolysis kinetics parameters obtained for SCG and SCG/sawdust blend are fairly close agreement with those found in literature for different biomasses. Hence SCG/sawdust may be a promising biofuel for the energy production in industrial applications.
BibTeX:
@article{Jeguirim2014b,
  author = {Jeguirim, M. and limousy, L. and Dutournie, P.},
  title = {Pyrolysis kinetis and Physicochemical Properties of agropellets produced from spent ground coffee blended with conventional biomass},
  journal = {Chemical Engineering Research and Design},
  year = {2014},
  volume = {92},
  pages = {1876-1882},
  doi = {http://doi.org/10.1016/j.cherd.2014.04.018}
}
Jeguirim, M. and Limousy, L. Modelling and Optimisation in Chemical and Biological engineering : application to wastewater and gas treatment 2014 International Journal of Chemical Reactor Engineering
Vol. 12, pp. 669-670 
article  
BibTeX:
@article{Jeguirim2014c,
  author = {Jeguirim, M. and Limousy, L.},
  title = {Modelling and Optimisation in Chemical and Biological engineering : application to wastewater and gas treatment},
  journal = {International Journal of Chemical Reactor Engineering},
  year = {2014},
  volume = {12},
  pages = {669-670}
}
Jiao, T.F., Balan, L., Chen, X.Q. and Zhang, Q.R. Functionalized Nanocomposites for Environmental Applications 2014 Journal of Chemistry
Vol. -, pp. 419458 
article DOI  
BibTeX:
@article{Jiao2014,
  author = {Jiao, T. F. and Balan, L. and Chen, X. Q. and Zhang, Q. R.},
  title = {Functionalized Nanocomposites for Environmental Applications},
  journal = {Journal of Chemistry},
  year = {2014},
  volume = {-},
  pages = {419458},
  doi = {http://doi.org/10.1155/2014/419458}
}
Jiao, T.F., Yan, X.B., Balan, L., Stepanov, A.L., Chen, X.Q. and Hu, M.Z. Chemical Functionalization, Self-Assembly, and Applications of Nanomaterials and Nanocomposites 2014 Journal of Nanomaterials
Vol. -, pp. 291013 
article DOI  
BibTeX:
@article{Jiao2014a,
  author = {Jiao, T. F. and Yan, X. B. and Balan, L. and Stepanov, A. L. and Chen, X. Q. and Hu, M. Z.},
  title = {Chemical Functionalization, Self-Assembly, and Applications of Nanomaterials and Nanocomposites},
  journal = {Journal of Nanomaterials},
  year = {2014},
  volume = {-},
  pages = {291013},
  doi = {http://doi.org/10.1155/2014/291013}
}
Jin, M., Hong, H., Xie, J.C., Malval, J.P., Spangenberg, A., Soppera, O., Wan, D.C., Pu, H.T., Versace, D.L., Leclerc, T., Baldeck, P., Poizat, O. and Knopf, S. pi-conjugated sulfonium-based photoacid generators: an integrated molecular approach for efficient one and two-photon polymerization 2014 Polymer Chemistry
Vol. 5(16), pp. 4747-4755 
article DOI  
Abstract: The cationic photoinitiating abilities of a series of 'push-pull' sulfonium-based photoacid generators (PAGs) have been investigated. In this linear pi-conjugated series, a 4-N,N-diphenylaminostilbene subunit is associated with different types of sulfonium substituents, which are connected to the stilbene moiety either in the 4' position or in the 3' position. This para-to-meta substitution effect leads to a strong increase of the quantum yield for acid generation with a maximum value of ca. 0.5. Such a positioning effect has a strong influence on the efficiency of the S-C bond cleavage. A detailed photolysis mechanism has been proposed. In contrast to commercially available sulfonium salts, these highly reactive pi-conjugated PAGs all exhibit large absorption in the visible range as well as large two-photon absorption cross-sections (delta(max) > 600 GM) in the near-infrared region. As a consequence, efficient one and two-photon polymerization reactions are observed at 405 nm and 800 nm, respectively, using typical monomers such as cyclohexene oxide, n-butyl vinyl ether or SU-8 photoresists. By the fabrication of well resolved two-dimensional microstructures, we finally demonstrate the potential use of these new generation PAGs in the fields of one and two-photon lithography.
BibTeX:
@article{Jin2014,
  author = {Jin, M. and Hong, H. and Xie, J. C. and Malval, J. P. and Spangenberg, A. and Soppera, O. and Wan, D. C. and Pu, H. T. and Versace, D. L. and Leclerc, T. and Baldeck, P. and Poizat, O. and Knopf, S.},
  title = {pi-conjugated sulfonium-based photoacid generators: an integrated molecular approach for efficient one and two-photon polymerization},
  journal = {Polymer Chemistry},
  year = {2014},
  volume = {5},
  number = {16},
  pages = {4747--4755},
  doi = {http://doi.org/10.1039/c4py00424h}
}
Jin, M., Xie, J.C., Malval, J.P., Spangenberg, A., Soppera, O., Versace, D.L., Leclerc, T., Pan, H.Y., Wan, D.C., Pu, H.T., Baldeck, P., Poizat, O. and Knopf, S. Two-photon lithography in visible and NIR ranges using multibranched-based sensitizers for efficient acid generation 2014 Journal of Materials Chemistry C
Vol. 2(35), pp. 7201-7215 
article DOI  
Abstract: We investigated methodically the one- and two-photon absorption properties of a series of multibranched triphenylamine-based chromophores incorporating 4-(methylthio)styryl fragments as external substituents. Some relevant structure property relationships relative to these highly fluorescent compounds have been derived based on emission anisotropy measurements, quantum chemical calculations and the use of the exciton coupling theory. Even though branching effects lead to a cooperative enhancement of the two-photon absorption (2PA), all compounds exhibit relatively low-to-moderate 2PA cross-sections (delta <= 100 GM) in the NIR region. However, the 'so-called' one-photon resonance enhancement effect leads to a remarkable increase of delta by more than one order of magnitude in the visible range. This strong 2PA ability has been associated with an efficient photosensitization of iodonium salt to elaborate a new bicomponent photoacid generator, which is readily two-photon activable at 532 nm. In the visible range, the strong enhancement of the efficiency of the two-photon induced polymerization is clearly demonstrated as compared with that observed in the NIR region.
BibTeX:
@article{Jin2014a,
  author = {Jin, M. and Xie, J. C. and Malval, J. P. and Spangenberg, A. and Soppera, O. and Versace, D. L. and Leclerc, T. and Pan, H. Y. and Wan, D. C. and Pu, H. T. and Baldeck, P. and Poizat, O. and Knopf, S.},
  title = {Two-photon lithography in visible and NIR ranges using multibranched-based sensitizers for efficient acid generation},
  journal = {Journal of Materials Chemistry C},
  year = {2014},
  volume = {2},
  number = {35},
  pages = {7201--7215},
  doi = {http://doi.org/10.1039/c4tc00706a}
}
Kabalan, I., Rioland, G., Nouali, H., Lebeau, B., Rigolet, S., Fadlallah, M.B., Toufaily, J., Hamiyeh, T. and Daou, J. Synthesis of purely silica MFI-type nanosheets for molecular decontamination 2014 Rsc Advances
Vol. 4(70), pp. 37353-37358 
article DOI  
Abstract: Conventional syntheses of zeolites generally lead to the formation of crystals whose sizes are of the order of several microns which is not detrimental in a large number of industrial applications. However, the capacity and kinetics of pollutant adsorption which are sensitive to diffusion phenomena, surface and porous volume could potentially be improved by the use of nanocrystal or hierarchical zeolites (micro/mesoporous or micro/macroporous). Indeed, zeosil nanosheets hold great potential because of their small size and their high porous volume that promote access of pollutants and increase the adsorption capacity. Herein, silicalite-1 zeosil with a lamellar morphology was successfully synthesized under hydrothermal conditions (110 degrees C, 10 days) using diquaternary ammonium as structuring agent. Compared to the conventional silicalite-1 material, the porous volume of the synthesized nanosheets determined from the N-2 adsorption-desorption isotherms was found to be multiplied by 3.5 (0.62 cm(3) g(-1)) without altering the microporous volume (0.18 cm(3) g(-1)). This result was also confirmed by the increase of the n- hexane adsorption capacity and kinetics in the silicalite-1 nanosheets compared to the conventional silicalite-1. This approach indicates a new way for obtaining zeosil materials of controlled sizes and shapes for molecular decontamination.
BibTeX:
@article{Kabalan2014,
  author = {Kabalan, I. and Rioland, G. and Nouali, H. and Lebeau, B. and Rigolet, S. and Fadlallah, M. B. and Toufaily, J. and Hamiyeh, T. and Daou, J.},
  title = {Synthesis of purely silica MFI-type nanosheets for molecular decontamination},
  journal = {Rsc Advances},
  year = {2014},
  volume = {4},
  number = {70},
  pages = {37353--37358},
  doi = {http://doi.org/10.1039/c4ra05567e}
}
Kauffer, F.A., Merlin, C., Balan, L. and Schneider, R. Incidence of the core composition on the stability, the ROS production and the toxicity of CdSe quantum dots 2014 Journal of Hazardous Materials
Vol. 268, pp. 246-255 
article DOI  
Abstract: Mercaptosuccinic acid-capped CdSe and alloyed CdSe(S) QDs were prepared in aqueous solution at 100 and 170 degrees C, respectively. These dots were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and UV-vis and photoluminescence spectroscopies. The dots were found to be of similar size (ca. 2 nm) but differ in their composition and surface chemistry. The photostability of the QDs was found to correlate with their ability to produce reactive oxygen species (ROS) upon light activation. CdSe QDs produce hydroxyl radicals immediately after irradiation due to their modest photostability, while CdSe(S) QDs start to generate the hydroxyl radicals only once they start to be bleached (ca. 30 min). Cytotoxicity experiments conducted on Escherichia coli cells revealed that CdSe QDs were the more toxic despite being the least loaded in cadmium. In addition, consistent with ROS assays, the cytotoxicity of the CdSe QDs appeared light-dependent and is in accordance with a light-dependent oxidative stress observed with an oxyR-based whole cell biosensor. Our results demonstrate the crucial role played by nanoparticles synthesis process on their PL properties, their stability and their toxicity. (C) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{Kauffer2014,
  author = {Kauffer, F. A. and Merlin, C. and Balan, L. and Schneider, R.},
  title = {Incidence of the core composition on the stability, the ROS production and the toxicity of CdSe quantum dots},
  journal = {Journal of Hazardous Materials},
  year = {2014},
  volume = {268},
  pages = {246--255},
  doi = {http://doi.org/10.1016/j.jhazmat.2014.01.029}
}
Khay, I., Daou, J., Nouali, H., Ryzhikov, A., Rigolet, S. and Patarin, J. High Pressure Intrusion-Extrusion of LiCl Aqueous Solutions in Silicalite-1 Zeolite: Influence on Energetic Performances 2014 Journal of Physical Chemistry C
Vol. 118(8), pp. 3935-3941 
article DOI  
Abstract: The energetic performances of different "Silicalite-1-LiCl aqueous solution" systems were evaluated under high pressure. Depending on the LiCl concentration in the aqueous medium (0 M, 5 M, 10 M, 20 M), an increase of the intrusion and extrusion pressures and therefore of the stored (similar to 10, similar to 13, similar to 19, similar to 31 J/g) and restored (similar to 10, similar to 13, similar to 18, similar to 27 J/g) energies are observed. Thus, compared to the "Silicalite-1-water" system, the stored energy is tripled in the case of "Silicalite-1-LiCl 20 M" system. Several characterizations (XRD, TG, NMR, N-2 physisorption, ICP/OES, ...) have been realized before and after intrusion-extrusion experiments in order to reveal the presence or the lack of defects and the possible presence of lithium ions in the material after such experiments. At the short-range order, solid state NMR spectroscopy get evidence of the presence of Q(2) and Q(3) groups revealing the breaking of some siloxane bridges after the intrusion-extrusion steps and thus the creation of hydroxyl groups set in evidence by TG experiments. Only few traces of lithium (1 atom per unit cell) were found by ICP/OES analysis.
BibTeX:
@article{Khay2014,
  author = {Khay, I. and Daou, J. and Nouali, H. and Ryzhikov, A. and Rigolet, S. and Patarin, J.},
  title = {High Pressure Intrusion-Extrusion of LiCl Aqueous Solutions in Silicalite-1 Zeolite: Influence on Energetic Performances},
  journal = {Journal of Physical Chemistry C},
  year = {2014},
  volume = {118},
  number = {8},
  pages = {3935--3941},
  doi = {http://doi.org/10.1021/jp4105163}
}
Kolmykov, O., Coulon, J., Lalevee, J., Alem, H., Medjandi, G. and Schneider, R. Aqueous synthesis of highly luminescent glutathione-capped Mn2+-doped ZnS quantum dots 2014 Materials Science & Engineering C-materials For Biological Applications
Vol. 44, pp. 17-23 
article DOI  
Abstract: In this paper, an aqueous-based route has been developed to prepare highly luminescent glutathione (GSH)-capped Mn-doped ZnS quantum dots (QDs). The dots obtained have an average diameter of 4.3 nm and exhibit the Mn2+-related orange luminescence with very low surface defect density. The highest photoluminescence was observed for a Mn2+ to Zn2+ molar ratio of 3%. Consecutive overcoating of the Mn:ZnS@GSH QDs by a ZnS shell was done, and the core/shell structured QDs exhibit a PL quantum yield of 23%. Transmission electron microscopy, X-ray powder diffraction, electron spin resonance, X-ray photoelectron spectroscopy, UV-visible spectroscopy and spectrofluorometry have been used to characterize the crystal structure, the doping status, and the optical properties of the doped-QDs. Our systematic investigation shows that Mn:ZnS/ZnS@GSH QDs are highly promising fluorescent labels in biological applications. (C) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{Kolmykov2014,
  author = {Kolmykov, O. and Coulon, J. and Lalevee, J. and Alem, H. and Medjandi, G. and Schneider, R.},
  title = {Aqueous synthesis of highly luminescent glutathione-capped Mn2+-doped ZnS quantum dots},
  journal = {Materials Science & Engineering C-materials For Biological Applications},
  year = {2014},
  volume = {44},
  pages = {17--23},
  doi = {http://doi.org/10.1016/j.msec.2014.07.064}
}
Kraiem, N., Jeguirim, M., Dorge, S., Limousy, L., Michelin, L., Lajili, M. and Said, R. Impregnationof Olive mill wastewaste on dry bibiomass : impact on Chemical Properties and combustion Performances 2014 Energy
Vol. 78C, pp. 506-516 
article  
BibTeX:
@article{Kraiem2014,
  author = {Kraiem, N. and Jeguirim, M. and Dorge, S. and Limousy, L. and Michelin, L. and Lajili, M. and Said, R.},
  title = {Impregnationof Olive mill wastewaste on dry bibiomass : impact on Chemical Properties and combustion Performances},
  journal = {Energy},
  year = {2014},
  volume = {78C},
  pages = {506-516}
}
Kulaga, E., ploux , L., Balan, L., Schrodj, G. and Roucoules, V. Mechanically Responsive Antibacterial Plasma Polymer Coatings for Textile Biomaterials 2014 Plasma Processes And Polymers
Vol. 11, pp. 63-79 
article DOI  
Abstract: We have developed a new type of mechanically responsive material on the basis of a plasma-modified soft biomaterial substrate (polypropylene surgical mesh). A first plasma deposited layer, enriched in a bioactive agent (silver nanoparticles), has been covered by a second plasma polymer layer that acts as a barrier to spontaneous release. The release of the active agent in a controlled manner was achieved by the presence of mechanically reversible fragmentations in the top-layer of deposited plasma polymer, induced by mechanical stimuli. Characterization of the material was performed by Scanning Electron Microscopy, Transmission Electron Microscopy, Attenuated Total Reflexion–Fourier Transform Infra-Red, X-ray Photoelectron, and Ultra Violet–Visible Spectroscopies. The antibacterial properties of the material have been verified.
BibTeX:
@article{Kulaga2014b,
  author = {Kulaga, E. and ploux, L and Balan, L and Schrodj, G and Roucoules, V.},
  title = {Mechanically Responsive Antibacterial Plasma Polymer Coatings for Textile Biomaterials},
  journal = {Plasma Processes And Polymers},
  year = {2014},
  volume = {11},
  pages = {63-79},
  doi = {http://doi.org/10.1002/ppap.201300091}
}
Labiadh, H., Ben Chaabane, T., Balan, L., Becheik, N., Corbel, S., Medjahdi, G. and Schneider, R. Preparation of Cu-doped ZnS QDs/TiO2 nanocomposites with high photocatalytic activity 2014 Applied Catalysis B-environmental
Vol. 144, pp. 29-35 
article DOI  
Abstract: Cu-doped ZnS quantum dots (QDs) were synthesized in aqueous solution using 3-mercaptopropionic acid (MPA) as stabilizer. Transmission electron microscopy (TEM) results indicate that the Cu:ZnS nanocrystals distribute uniformly and the size is ca. 2.9 +/- 0.5 nm. These nanocrystals were successfully associated to anatase TiO2 nanoparticles to yield TiO2/Cu:ZnS photocatalysts. Morphological and optical properties of TiO2/Cu:ZnS nanocomposites were characterized by X-ray diffraction (XRD) analysis, TEM, and UV-vis and fluorescence spectroscopies. Photocatalytic activities of TiO2/Cu:ZnS nanocomposites were evaluated by the oxidation of salicylic acid aqueous solutions under UV light irradiation. Enhanced performances compared either to pure TiO2 nanoparticles or to undoped TiO2/ZnS nanocomposites were observed. Effects of the mass ratio of the TiO2 and Cu:ZnS and of the pH of the aqueous solution containing salicylic acid on the photocatalytic activities of TiO2 nanoparticles sensitized with Cu:ZnS QDs were also investigated. (C) 2013 Elsevier B.V. All rights reserved.
BibTeX:
@article{Labiadh2014a,
  author = {Labiadh, H. and Ben Chaabane, T. and Balan, L. and Becheik, N. and Corbel, S. and Medjahdi, G. and Schneider, R.},
  title = {Preparation of Cu-doped ZnS QDs/TiO2 nanocomposites with high photocatalytic activity},
  journal = {Applied Catalysis B-environmental},
  year = {2014},
  volume = {144},
  pages = {29--35},
  doi = {http://doi.org/10.1016/j.apcatb.2013.07.004}
}
Lajili, M., Limousy, L. and Jeguirim, M. Physico-chemical properties and thermal degradation characteristics of agropellets from olive mill by-products/sawdust blends 2014 Fuel Processing Technology
Vol. 126, pp. 215-221 
article DOI  
Abstract: This study aims to produce agropellets composed by olive waste, an olive mills by-product, blended with pine sawdust for 6 different mass fraction compositions. Thermal and physicochemical properties of these pellets such as moisture, ash content, bulk density and heating values were determined. In addition, thermogravimetric analyses were performed under inert and oxidative atmosphere in order to assess the thermal degradation behaviour of the produced agropellets. Results show that during the pelletization process, the high value of moisture in olive waste decreases. Values of ash content for each considered sample remain in the accepted agropellets French standards. Thermogravimetric analysis shows that the thermal degradation of the different pellets follows the usual behaviour of lignocellulosic materials. Furthermore, a quite continuous zone corresponding to the not readily char combustible part is detected during TGA under oxidative condition. However, a higher reactivity for PS/OW pellets is observed compared to those reported in literature. Such results prove that olive waste agropellets may be an alternative fuel for producing energy in domestic boilers. (C) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{Lajili2014,
  author = {Lajili, M. and Limousy, L. and Jeguirim, M.},
  title = {Physico-chemical properties and thermal degradation characteristics of agropellets from olive mill by-products/sawdust blends},
  journal = {Fuel Processing Technology},
  year = {2014},
  volume = {126},
  pages = {215--221},
  doi = {http://doi.org/10.1016/j.fuproc.2014.05.007}
}
Lalevee, J., Telitel, S., Xiao, P., Lepeltier, M., Dumur, F., Morlet-Savary, F., Gigmes, D. and Fouassier, J.P. Metal and metal-free photocatalysts: mechanistic approach and application as photoinitiators of photopolymerization 2014 Beilstein Journal of Organic Chemistry
Vol. 10, pp. 863-876 
article DOI  
Abstract: In the present paper, the photoredox catalysis is presented as a unique approach in the field of photoinitiators of polymerization. The principal photocatalysts already reported as well as the typical oxidation and reduction agents used in both reductive or oxidative cycles are gathered. The chemical mechanisms associated with various systems are also given. As compared to classical iridium-based photocatalysts which are mainly active upon blue light irradiation, a new photocatalyst Ir(piq)(2)(tmd) (also known as bis(1-phenylisoquinolinato-N, C-2') iridium(2,2,6,6-tetramethyl-3,5-heptanedionate) is also proposed as an example of green light photocatalyst (toward the long wavelength irradiation). The chemical mechanisms associated with Ir(piq)(2)(tmd) are investigated by ESR spin-trapping, laser flash photolysis, steady state photolysis, cyclic voltammetry and luminescence experiments.
BibTeX:
@article{Lalevee2014,
  author = {Lalevee, J. and Telitel, S. and Xiao, P. and Lepeltier, M. and Dumur, F. and Morlet-Savary, F. and Gigmes, D. and Fouassier, J. P.},
  title = {Metal and metal-free photocatalysts: mechanistic approach and application as photoinitiators of photopolymerization},
  journal = {Beilstein Journal of Organic Chemistry},
  year = {2014},
  volume = {10},
  pages = {863--876},
  doi = {http://doi.org/10.3762/bjoc.10.83}
}
Lalevee, J., Morlet-Savary, F., Dietlin, C., Graff, B. and Fouassier, J.P. Photochemistry and Radical Chemistry under Low Intensity Visible Light Sources: Application to Photopolymerization Reactions 2014 Molecules
Vol. 19, pp. 15026-15041 
article DOI  
BibTeX:
@article{Lalevee2014a,
  author = {Lalevee, J. and Morlet-Savary, F and Dietlin, C. and Graff, B. and Fouassier J.P.},
  title = {Photochemistry and Radical Chemistry under Low Intensity Visible Light Sources: Application to Photopolymerization Reactions},
  journal = {Molecules},
  year = {2014},
  volume = {19},
  pages = {15026-15041},
  doi = {http://doi.org/10.3390/molecules190915026}
}
Lebeau, B., Marichal, C., Patarin, J. and Guarilloff, P. Encapsulation d'un filtre UV dans une silice mésoporeuse 2014 Technique de l'Ingénieur
Vol. IN177, pp. 13 pages 
article  
Abstract: L’encapsulation de principes actifs, qu’elle soit permanente ou avec un relargage contrôlé, a des applications dans des domaines aussi variés que la pharmacie, l’agrochimie, l’alimentaire, la cosmétique, le textile, le bâtiment... Cet article décrit comment à partir d’une problématique propre au domaine de la cosmétique, la protection solaire, un matériau hybride organique-inorganique a été élaboré permettant l’encapsulation permanente d’un filtre UV dans une silice mésoporeuse. The encapsulation of active ingredients, whether permanent or with a controlled release, has applications in areas as diverse as pharmaceuticals, agrochemicals, food, cosmetics, textiles, building... This article describes how from a problematic specific to the field of cosmetics, sunscreen, an organic-inorganic hybrid material was designed for the permanent encapsulation of a UV filter in a mesoporous silica.
BibTeX:
@article{Lebeau2014,
  author = {Lebeau, B. and Marichal, C. and Patarin, J. and Guarilloff, P.},
  title = {Encapsulation d'un filtre UV dans une silice mésoporeuse},
  journal = {Technique de l'Ingénieur},
  year = {2014},
  volume = {IN177},
  pages = {13 pages}
}
Le Duigou, A., Kervoelen, A., Le Grand, A., Nardin, M. and Baley, C. Interfacial properties of flax fibre-epoxy resin systems: Existence of a complex interphase 2014 Composites Science and Technology
Vol. 100, pp. 152-157 
article DOI  
Abstract: The purpose of the present article is to evaluate the real fibre surface involved in the practical adhesion of a flax/epoxy system. The difference in practical adhesion evaluated by microbond tests between Hermes (tau(app) = 22.5 +/- 1.5 MPa) and Electra (tau(app) = 13.2 +/- 3.2 MPa) flax fibres varieties/epoxy systems could not be explained by their superficial surface chemistry evaluated by XPS. FTIR spectroscopy highlights a difference in biochemical composition and Laser Confocal microscopy evidences a resin penetration for the two flax fibres systems (1.7 +/- 0.7 mu m for Hermes and 2.2 +/- 0.8 mu m for Electra). Thus the effective surface or complex interphase will be by consequence the overall area where the resin and fibre are in contact, i.e. the entire area penetrated by resin. (C) 2014 Elsevier Ltd. All rights reserved.
BibTeX:
@article{LeDuigou2014,
  author = {Le Duigou, A. and Kervoelen, A. and Le Grand, A. and Nardin, M. and Baley, C.},
  title = {Interfacial properties of flax fibre-epoxy resin systems: Existence of a complex interphase},
  journal = {Composites Science and Technology},
  year = {2014},
  volume = {100},
  pages = {152--157},
  doi = {http://doi.org/10.1016/j.compscitech.2014.06.009}
}
Lepeltier, M., Dumur, F., Graff, B., Xiao, P., Gigmes, D., Lalevee, J. and Mayer, C.R. Tris-cyclometalated Iridium(III) Complexes with Three Different Ligands: a New Example with 2-(2,4-Difluorophenyl)pyridine-Based Complex 2014 Helvetica Chimica Acta
Vol. 97, pp. 939-956 
article  
Abstract: An iridium(III) complex comprising three different cyclometalated phenylpyridine-based ligands was designed and synthesized. Interestingly, mixed-ligand complexes could be obtained by using a simple and straightforward procedure. A tris(heteroleptic) IrIII complex was obtained as a mixture of stereoisomers that could not be separated. Photophysical properties of the tris(heteroleptic) complex was investigated by UV/VIS absorption and luminescence spectroscopy, and compared with those of the parent homoleptic complexes. Modelling by time-dependent density functional theory (TD-DFT) was also performed to elucidate the nature and the location of the excited state, and to support the experimental results.
BibTeX:
@article{Lepeltier2014,
  author = {Lepeltier, M. and Dumur, F. and Graff, B. and Xiao, P. and Gigmes, D. and Lalevee, J. and Mayer, C. R.},
  title = {Tris-cyclometalated Iridium(III) Complexes with Three Different Ligands: a New Example with 2-(2,4-Difluorophenyl)pyridine-Based Complex},
  journal = {Helvetica Chimica Acta},
  year = {2014},
  volume = {97},
  pages = {939-956}
}
Lojou, E., de Poulpiquet, A., Ranava, D., Mano, N., Giudici-Orticoni, M.T. and Gadiou, R. H2 Production from Biomass for H2/O2 Biofuel Cells 2014 Meeting Abstracts
Vol. MA2014-01(22), pp. 982-982 
article URL 
BibTeX:
@article{Lojou2014,
  author = {Lojou, Elisabeth and de Poulpiquet, Anne and Ranava, David and Mano, Nicolas and Giudici-Orticoni, Marie THérèse and Gadiou, Roger},
  title = {H2 Production from Biomass for H2/O2 Biofuel Cells},
  journal = {Meeting Abstracts},
  year = {2014},
  volume = {MA2014-01},
  number = {22},
  pages = {982--982},
  url = {http://ma.ecsdl.org/content/MA2014-01/22/982.abstract N2 - Fuel cells using renewable resources are attractive devices able to take up the energy challenges launched by fossil fuel exhaustion. Hydrogen can be produced from biomass and biocatalysts can replace noble metals such as platinum. Hydrogenase enzymes arise as particularly efficient biocatalysts for H2 oxidation. However, bottlenecks must be overcome before the development of these biofuel cells: 1- biohydrogen production is rate limited, 2- many hydrogenases are inhibited by oxygen and CO, 3- the size of the enzymes limits their electrical connection, hence the current densities. This work will discuss some solutions to get through these limitations, such as controlled bacterium consortia to determine the biophysical parameters able to enhance bioproduction of H2, and the efficient immobilization of an O2-tolerant hydrogenase which allows the development of a new generation of H2/O2 biofuel cell.A multidisciplinary approach including microbiology, microscopies and electrochemistry was used for the study of a synthetic microbial consortium in view of the optimization of biohydrogen production. Electrochemical tools, associated to the full characterization of carbon materials, were used to design a H2/O2 biofuel cell.Numerous microorganisms can produce hydrogen by “dark fermentation”. Literature essentially reports the use of pure microbial cultures to produce biohydrogen from simple sugars. In this work one bacterium from Clostridium (H2 producer) and one from Desulfovibrio (H2 producer or consumer depending on its environment) have been studied as pure and mixed cultures. We demonstrate in this work (i) a physical interaction between the strains via nanotubes, (ii) an exchange of cytoplasmic constituents, (iii) a higher hydrogen production by the consortium compared to isolated bacteria. A modification in the metabolic pathway is proposed that can explain such results.1Besides, screening energetic pathways in exotic micro-organisms lead to the identification of a membrane-bound hydrogenase which oxidizes hydrogen into protons with high efficiency while presenting outstanding O2, CO and temperature resistances.2,3 When immobilized onto carbon nanotube networks and in combination with a multicopper oxidase for O2 reduction, this enzyme has been proved to be a valuable candidate in a preliminary H2/O2 biofuel cell.4Fishbone carbon nanofibers (CNFs) are other promising carbon materials which are electrically conductive, and bear lots of reactive sites due to the stacking of graphene cones. They can be quite easily functionalized for an efficient entrapment of proteins. We report in this work the use of such synthesized CNFs for modification of electrodes and immobilization of hydrogenase. We discuss the physico-chemical parameters that limit the efficiency of the bioelectrode, and define their optimization for a great enhancement of the current densities for H2 oxidation.Combined with a thermophilic multicopper oxidase at the cathode, immobilization of hydrogenase on CNFs allow to design a new generation of a high power H2/O2 biofuel cell able to be fed in the future with H2 produced from biomass.5References[1] Y. Rafrafi et al., Int. J. Hydrogen Energ. 38 (2013) 4975.[2] X. Luo et al., J. Biol. Inorg. Chem. 14(2009)1275.[3] A. Ciaccafava et al., Angew. Chem. Int. Ed., 51(2012)953.[4] A. Ciaccafava et al., Electrochem. Com. 23(2012)25.[5] A. de Poulpiquet et al., PCCP(2013)}
}
Lorgouilloux, Y., Dodin, M., Mugnaioli, E., Marichal, C., Caullet, P., Bats, N., Kolb, U. and Paillaud, J.L. IM-17: a new zeolitic material, synthesis and structure elucidation from electron diffraction ADT data and Rietveld analysis 2014 Rsc Advances
Vol. 4(37), pp. 19440-19449 
article DOI  
Abstract: The synthesis and the structure of IM-17, a new germanosilicate with a novel zeolitic topology, prepared hydrothermally with decamethonium as the organic structure directing agent, are reported. The structure of calcined and partially rehydrated IM-17 of chemical formula per unit cell |(H2O)(14.4)| [Si136.50Ge39.50O352] was solved ab initio using electron diffraction ADT data in the acentric Amm2 (setting Cm2m) space group and refined by the Rietveld method. This new zeolite framework type contains a 3D pore system made of intersecting 12, 10 and 8-ring channels.
BibTeX:
@article{Lorgouilloux2014,
  author = {Lorgouilloux, Y. and Dodin, M. and Mugnaioli, E. and Marichal, C. and Caullet, P. and Bats, N. and Kolb, U. and Paillaud, J. L.},
  title = {IM-17: a new zeolitic material, synthesis and structure elucidation from electron diffraction ADT data and Rietveld analysis},
  journal = {Rsc Advances},
  year = {2014},
  volume = {4},
  number = {37},
  pages = {19440--19449},
  doi = {http://doi.org/10.1039/c4ra01383b}
}
Luchnikov, V. and Balan, L. Photochemistry for Advanced Nanoengineering: Polymer Microtubes with Inner Walls Coated with Silver Nanoparticles 2014 Nanomaterials and Nanotechnology
Vol. 4, pp. 20 
article DOI  
BibTeX:
@article{Luchnikov2014,
  author = {Luchnikov, V. and Balan, L.},
  title = {Photochemistry for Advanced Nanoengineering: Polymer Microtubes with Inner Walls Coated with Silver Nanoparticles},
  journal = {Nanomaterials and Nanotechnology},
  year = {2014},
  volume = {4},
  pages = {20},
  doi = {http://doi.org/10.5772/58762}
}
Mahouche-Chergui, S., Grohens, Y., Balnois, E., Lebeau, B. and Scudeller, Y. Adhesion of Silica Particles on Thin Polymer Films Model of Flax Cell Wall 2014 Materials Sciences and Applications
Vol. 5, pp. 953-965 
article DOI  
Abstract: The present work is focused on better understanding of the interfacial interactions of SBA-15 mesoporous silica particles with flax fibers. In order to overcome the inherent complexity of flax fiber surface composition we have prepared model polysaccharide surfaces representing the main component of the flax fibers, e.g. cellulose, polygalacturonic acid (PGUA), and xyloglucan (XG) with thicknesses of about 200 nm, 100 nm, and 110 nm, respectively. The ξ-potential measurements of both silica and polysaccharides were performed in aqueous solutions as a function of pH and ionic strength. ξ-potential, AFM and SEM results supported the important role of electrostatic interactions in the silica adsorption on polysaccharide surfaces, since silica adsorption increased remarkably with ionic strength. The adsorption density of the SBA-15 onto the various polysaccharides was Cellulose > PGUA > XG, and the maximum was observed at pH = 4. Urea used as hydrogen bonds breaker reduced significantly the adsorption of SBA-15 on the polysaccharide surfaces, which highlighted the significant contribution of hydrogen bonding in the adsorption process. It was observed that most adsorbed SBA-15 particles were resistant to ultrasonic washing, which revealed their strong irreversible adsorption. Finally, direct adsorption experiments on both raw and treated real flax fibers yielded results consistent with those of model surfaces showing the important role of the surface fibers treatments on the improvement of the interfacial adhesion of the silica particles with flax fibers. The remarkable affinity of the SBA-15 particles with treated flax fibers is encouraging to design superinsulators composites with tuneable mechanical performances.
BibTeX:
@article{Mahouche-Chergui2014,
  author = {Mahouche-Chergui, S. and Grohens, Y. and Balnois, E. and Lebeau, B. and Scudeller, Y.},
  title = {Adhesion of Silica Particles on Thin Polymer Films Model of Flax Cell Wall},
  journal = {Materials Sciences and Applications},
  year = {2014},
  volume = {5},
  pages = {953-965},
  doi = {http://doi.org/10.4236/msa.2014.513097}
}
Malval, J.-P., Achelle, S., Bodiou, L., Spangenberg, A., Gomez, L.C., Soppera, O. and Guen, F.R.-l. Two-photon absorption in a conformationally twisted D-[small pi]-A oligomer: a synergic photosensitizing approach for multiphoton lithography 2014 J. Mater. Chem. C
Vol. 2(37), pp. 7869-7880 
article URL 
Abstract: A comparative study of the linear and nonlinear optical properties of a novel triphenylamine-pyrimidine alternated oligomer and its corresponding V-shaped quadrupolar monomer is presented. Both chromophores strikingly exhibit the same spectral shape when considering their respective one- and two-photon absorption spectra. This effect was attributed to a weak interchromophore coupling within the oligomer which exhibits a highly distorted geometry resulting in a strong reduction of the effective conjugation length. The recursive implementation of nine monomers into a three-dimensional architecture leads however to a cooperative enhancement of the two-photon absorption (2PA) cross-section with a [small delta]MAX of 5093 GM at 800 nm. This very high 2PA ability has been oriented to improve the two-photon induced polymerization efficiency of a bicomponent photoinitiator system implying a hexaarylbiimidazole used as a H-abstractor and an aliphatic amine used as a H-donor. The photosensitizing mechanism is investigated and we clearly show that the intrinsic photoinitiation efficiency of the oligomer is increased by a factor 3 as compared to its corresponding monomer. We therefore demonstrate that such a two-photon sensitizing strategy leads to a synergy effect combining a higher photoinitiation reactivity and a very large two-photon absorption cross-section.
BibTeX:
@article{Malval2014,
  author = {Malval, Jean-Pierre and Achelle, Sylvain and Bodiou, Loic and Spangenberg, Arnaud and Gomez, Laura Chia and Soppera, Olivier and Guen, Francoise Robin-le},
  title = {Two-photon absorption in a conformationally twisted D-[small pi]-A oligomer: a synergic photosensitizing approach for multiphoton lithography},
  journal = {J. Mater. Chem. C},
  publisher = {The Royal Society of Chemistry},
  year = {2014},
  volume = {2},
  number = {37},
  pages = {7869--7880},
  url = {http://dx.doi.org/10.1039/C4TC00841C}
}
Manecka, G.M., Labrash, J., Rouxel, O., Dubot, P., Lalevee, J., Andaouss, S.A., Renard, E., Langlois, V. and Versace, D.L. Green Photoinduced Modification of Natural Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Surface for Antibacterial Applications 2014 Acs Sustainable Chemistry & Engineering
Vol. 2(4), pp. 996-1006 
article DOI  
Abstract: A green photoinduced method for the modification of a biodegradable and biocompatible polymer, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV), has been successfully carried out using three types of monomers with potential antibacterial effects, i.e., 2-[(methacryloyloxy)-ethyl] trimethylammonium chloride (META), 2-[(methacryloylethyl)]-dimethyl-(3-sulfopropyl) ammonium (MESA) and 2-hydroxyethyl methacrylate (HEMA). The photografting process is conducted through a photoinduced free radical process employing a ketone-based photoinitiator in an aqueous medium. Under appropriate conditions, the photogenerated radicals abstract hydrogen atoms from the PHBHV backbone, thus initiating the UV-mediated photopolymerization of derived-(meth)acrylate monomers from the surface of PHBHV film. The photochemical mechanism of the ketones photolysis is entirely described by a electron spin resonance/spin trapping technique, and the modified-PHBHV films are extensively characterized by ATR-FTIR and water contact angle and XPS measurements. Finally, a primary investigation is conducted to support the antibacterial activity of the new functionalized biomaterial against Escherichia coli and Staphylococcus aureus.
BibTeX:
@article{Manecka2014,
  author = {Manecka, G. M. and Labrash, J. and Rouxel, O. and Dubot, P. and Lalevee, J. and Andaouss, S. A. and Renard, E. and Langlois, V. and Versace, D. L.},
  title = {Green Photoinduced Modification of Natural Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Surface for Antibacterial Applications},
  journal = {Acs Sustainable Chemistry & Engineering},
  year = {2014},
  volume = {2},
  number = {4},
  pages = {996--1006},
  doi = {http://doi.org/10.1021/sc400564r}
}
Maurin, V., Croutxe-Barghorn, C., Allonas, X., Brendle, J., Bessieres, J., Merlin, A. and Masson, E. UV powder coatings containing synthetic Ag-beidellite for antibacterial properties 2014 Applied Clay Science
Vol. 96, pp. 73-80 
article DOI  
Abstract: The preparation of antibacterial UV powder coatings dedicated to wood based panels is described in the present study. Two experimentalmethods were investigated: the generation of silver nanoparticles during the polymerization of UV powders and the introduction of a silvermodified beidellitewithin UV powder formulations.While the first method leads to some nanoparticle aggregation, this phenomenon was avoided with the second approach. Antibacterial activity was thus ensured by the presence of beidellite modified with silver cations. XRD, X-ray fluorescence, SEM/EDX and TEM analyses allowed a complete characterization of the Ag-beidellite before its incorporation within UV powder formulations. Real-time-FTIR spectroscopy fitted with an environmental cell was used to monitor the reactivity of UV powder formulations under UV light and temperature control. Resulting coatings were finally characterized by UV spectroscopy, DMA in tension mode, XRD, TEM and antimicrobial analyses. It was shown that the fully cured and homogeneous coatings exhibit high thermomechanical properties and antibacterial activity.
BibTeX:
@article{Maurin2014,
  author = {Maurin, V. and Croutxe-Barghorn, C. and Allonas, X. and Brendle, J. and Bessieres, J. and Merlin, A. and Masson, E.},
  title = {UV powder coatings containing synthetic Ag-beidellite for antibacterial properties},
  journal = {Applied Clay Science},
  year = {2014},
  volume = {96},
  pages = {73-80},
  doi = {http://doi.org/10.1016/j.clay.2014.03.013}
}
May, J.R., Gentilini, C., Clarke, D.E., Odarchenko, Y.I., Anokhin, D.V., Ivanov, D.A., Feldman, K., Smith, P. and Stevens, M.M. Tailoring of mechanical properties of derivatized natural polyamino acids through esterification and tensile deformation 2014 Rsc Advances
Vol. 4(4), pp. 2096-2102 
article DOI  
Abstract: Tensile deformation was applied to the naturally produced poly-gamma-glutamic acid, which can be enzymatically degraded and is, therefore, of interest for biomedical use. However, natural polyamino acids have a similar chemical structure to synthetic polyamides ("nylons"), which are known to feature strong inter-molecular hydrogen bonding that prevents large-scale molecular motion in their solid state. Through esterification, this hydrogen bonding was partially shielded, allowing orientation of the polyamino acid macromolecules through tensile deformation. An increase in Young's modulus and tensile strength was achieved of solution-cast films of the chemically modified poly-g-glutamic acids, consistent with enhanced uniaxial polymer chain orientation. The latter was confirmed by both wide-angle X-ray scattering and polarized Raman spectroscopy. The films thus produced were found to be non-cytotoxic. These mechanically tailorable, biocompatible polymers may be excellent candidates for use in musculoskeletal tissue engineering applications that have different loading requirements within the body.
BibTeX:
@article{May2014,
  author = {May, J. R. and Gentilini, C. and Clarke, D. E. and Odarchenko, Y. I. and Anokhin, D. V. and Ivanov, D. A. and Feldman, K. and Smith, P. and Stevens, M. M.},
  title = {Tailoring of mechanical properties of derivatized natural polyamino acids through esterification and tensile deformation},
  journal = {Rsc Advances},
  year = {2014},
  volume = {4},
  number = {4},
  pages = {2096--2102},
  doi = {http://doi.org/10.1039/c3ra44865g}
}
Mokbel, H., Dumur, F., Graff, B., Mayer, C.R., Gigmes, D., Toufaily, J., Hamieh, T., Fouassier, J.P. and Lalevee, J. Michler's Ketone as an Interesting Scaffold for the Design of High- Performance Dyes in Photoinitiating Systems Upon Visible Light 2014 Macromolecular Chemistry and Physics
Vol. 215(8), pp. 783-790 
article DOI  
Abstract: Four new push-pull dyes derived from Michler's ketones are investigated. These dyes, based on a donor--acceptor (D--A) structure, exhibit a tunable character according to the electron-withdrawing ability of the acceptor used. The new proposed structures can be used in high-performance photoinitiating systems. Remarkably, two of them are characterized by an excellent reactivity to initiate the free-radical polymerization of acrylates, the ring-opening polymerization of epoxides, as well as the synthesis of interpenetrating polymer networks (IPNs) under exposure to a laser diode at 457 nm. The chemical mechanisms are investigated by steady-state photolysis, fluorescence, and electron spin-resonance (ESR) experiments. image
BibTeX:
@article{Mokbel2014,
  author = {Mokbel, H. and Dumur, F. and Graff, B. and Mayer, C. R. and Gigmes, D. and Toufaily, J. and Hamieh, T. and Fouassier, J. P. and Lalevee, J.},
  title = {Michler's Ketone as an Interesting Scaffold for the Design of High- Performance Dyes in Photoinitiating Systems Upon Visible Light},
  journal = {Macromolecular Chemistry and Physics},
  year = {2014},
  volume = {215},
  number = {8},
  pages = {783--790},
  doi = {http://doi.org/10.1002/macp.201300779}
}
Mokbel, H., Dumur, F., Mayer, C., Morlet-Savary, F., Graff, B., Gigmes, D., Toufaily, J., Hamieh, T., Fouassier, J.-P. and Lalevee, J. End capped polyenic structures as visible light sensitive photoinitiators for polymerization of vinylethers 2014
Vol. 105Dyes and Pigments, pp. 121-129 
article URL 
Abstract: Nine new photoinitiating systems based on a combination of new and established dyes (having an end capped polyenic structure) with an iodonium salt have been synthesized and tested for the polymerization of divinylether and epoxy monomers upon a visible light exposure. They exhibit a strong absorption in the 350-650 nm range which well matches the visible light emission of different convenient visible light sources. Interestingly, very soft irradiation conditions can be employed. Excellent polymerization profiles have been obtained from selected dye iodonium salt combinations using a halogen amp or a laser diode à 457 nm. The chemical mechanisms associated with these novel photoinitiating systems are investigated by steady-state photolysis and ESR experiments. © 2014 Elsevier Ltd. All rights reserved.
BibTeX:
@article{Mokbel2014b,
  author = {Mokbel, H. and Dumur, F. and Mayer, C.R. and Morlet-Savary, F. and Graff, B. and Gigmes, D. and Toufaily, J. and Hamieh, T. and Fouassier, J.-P. and Lalevee, J.},
  title = {End capped polyenic structures as visible light sensitive photoinitiators for polymerization of vinylethers},
  booktitle = {Dyes and Pigments},
  year = {2014},
  volume = {105},
  pages = {121--129},
  url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894566078&doi=10.1016%2fj.dyepig.2014.02.002&partnerID=40&md5=7a1efe60cc2b80212fadaae756cb6b5e}
}
Mustatea, G., Calinescu, I., Diacon, A. and Balan, L. Photoinduced synthesis of silver/polymer nanocomposites. 2014 Materiale Plastice (Bucharest, Romania)
Vol. 51(1), pp. 17-21 
article URL 
Abstract: Direct photoredn. and photosensitization are powerful approaches for the in-situ synthesis in a polymer matrix. A silver-acrylate nanocomposite was prepd. using a novel one-pot strategy involving simultaneous photoinduced redn. and free radical polymn. processes. The fabrication of metal nanocomposite was performed using an acrylate functionalized oligomer (polyethylene glycol 600 diacrylate) and a silver salt (AgNO3). The formation of Ag-nanoparticles was followed by UV-Vis spectroscopy which shows a surface plasmon band at a wavelength range between 410 and 440 nm. Transmission electron microscopy revealed that the synthesized nanoparticles were spherical in shape with a diam. between 5 to 20 nm. The polymn. process was followed quant. by IR spectroscopy, monitoring the disappearance of the characteristic bands for the acrylate double bonds (1410 cm-1). The optimum conditions for obtaining the silver-polymer nanocomposites were detd. (silver precursor concn., molar ratio silver precursor/photoinitiator, irradn. time and intensity). A reaction mechanism was proposed to explain the polymn. rate dependence on the silver cations content. [on SciFinder(R)]
BibTeX:
@article{Mustatea2014a,
  author = {Mustatea, Gabriel and Calinescu, Ioan and Diacon, Aurel and Balan, Lavinia.},
  title = {Photoinduced synthesis of silver/polymer nanocomposites.},
  journal = {Materiale Plastice (Bucharest, Romania)},
  publisher = {SC Biblioteca Chimiei SA},
  year = {2014},
  volume = {51},
  number = {1},
  pages = {17--21},
  url = {http://www.revmaterialeplastice.ro}
}
Narayanan Nair, M., Hobeika, N., Calard, F., Malval, J., Aloïse, S., Spangenberg, A., Simon, L, Vonau, F., Aubel, D., Serein-Spirau Fand Lère-Porte, J., Lacour, M. and Jarrosson, T One- and two-photon absorption and emission properties of an oligo(phenylenethienylene)s series 2014 Physical Chemistry Chemical Physics
Vol. 16, pp. 12826-12837 
article DOI URL 
Abstract: The photophysical and nonlinear absorption properties of an oligo(phenylenethienylene)s series (nTBT) are investigated in this article. The length of the chromophore is gradually increased from one to four phenylenethienylene repeating units in order to evaluate the effects of the electronic delocalization on the two-photon absorption cross sections (δ). According to the excitation anisotropy measurements and quantum chemical calculations, two electronic transitions with distinctive symmetries, 1Ag → 1Bu and 1Ag → 2Ag, are present in the low energy region of the linear absorption spectrum. The lowest-energy transition 1Ag → 1Bu is one-photon allowed but two-photon forbidden and implies an electronic charge delocalization all along the oligomer segment whereas the weakly-allowed 1Ag → 2Ag transition exhibits a transition moment perpendicular to the average plane of the chromophore. The latter transition mainly contributes to the two-photon absorption ability of the oligomers. All derivatives are poorly solvatochromic and the breakdown of the mirror symmetry rule observed between absorption and fluorescence spectra at room temperature has been attributed to a photoinduced geometrical relaxation leading to a very efficient planarization process of the oligomer irrespective of its size. Increasing the oligomer length results in a slight shift of the two-photon absorption band (∼1300 cm(-1)) and in a drastic increase of δ from 2 ± 1 GM up to 802 ± 160 GM for 1TBT and 4TBT respectively. Based on a three-level model, it was found that main contributions to the strong increase of δ stem from the transition moments Mge and Mee' which are multiplied by a factor of 2.8 and 5 when going from 1TBT to 4TBT.
BibTeX:
@article{Narayanan2014,
  author = {Narayanan Nair,M and Hobeika, N and Calard, F and Malval, JP and Aloïse, S and Spangenberg, A. and Simon L and Vonau, F and Aubel, D and Serein-Spirau, Fand Lère-Porte, JP and Lacour, M and Jarrosson T},
  title = {One- and two-photon absorption and emission properties of an oligo(phenylenethienylene)s series},
  journal = {Physical Chemistry Chemical Physics},
  publisher = {Royal Society of Chemistry},
  year = {2014},
  volume = {16},
  pages = {12826-12837},
  url = {https://hal.archives-ouvertes.fr/hal-01065859},
  doi = {http://doi.org/10.1039/c2cp44365a}
}
Ni, L.L., Dietlin, C., Chemtob, A., Croutxe-Barghorn, C. and Brendle, J. Hydrophilic/Hydrophobic Film Patterning by Photodegradation of Self-Assembled Alkylsilane Multilayers and Its Applications 2014 Langmuir
Vol. 30(33), pp. 10118-10126 
article DOI  
Abstract: While the photopatterning of self-assembled monolayers (SAMs) has been extensively investigated, much less attention has been given to highly ordered multilayer systems. By being both thicker (0.5-2 mu m) and more stable (cross-linked) than SAMs, patterned hybrid multilayers lend themselves more easily to the development of technology-relevant materials and characterization. This paper describes a facile two-step UV approach to patterning an alkylsilane multilayer by combining photoinduced self-assembly for multilayer synthesis and photodegradation through a mask for creating patterns within the film. In this second stage, a spatially resolved removal of the alkyl tail via a photooxidation mechanism took place, yielding regular and uniform silica microdomains. The result was a regular array of features (alkylsiloxane/silica) differing in chemical composition (hybrid/inorganic), ordering (crystal-like/disordered), and wettability (hydrophobic/hydrophilic). Such a photopattemed film was of utility for a range of applications in which water droplets, inorganic crystals, or aqueous polymer dispersions were selectively deposited in the hydrophilic silica microwells.
BibTeX:
@article{Ni2014,
  author = {Ni, L. L. and Dietlin, C. and Chemtob, A. and Croutxe-Barghorn, C. and Brendle, J.},
  title = {Hydrophilic/Hydrophobic Film Patterning by Photodegradation of Self-Assembled Alkylsilane Multilayers and Its Applications},
  journal = {Langmuir},
  year = {2014},
  volume = {30},
  number = {33},
  pages = {10118--10126},
  doi = {http://doi.org/10.1021/la5023938}
}
Niu, S.L., Schneider, R., Vidal, L., Hajjar-Garreau, S. and Balan, L. Light-assisted synthesis and functionalization of silver nanoparticles with thiol derivative thioxanthones: new insights into the engineering of metal/chromophore nanoassemblies 2014 Journal of Nanoparticle Research
Vol. 16(2620), pp. 11 pages 
article DOI  
Abstract: In this study, silver nanoparticles (Ag NPs) were generated, functionalized, and stabilized using a one-step photochemical approach that does not require more than few minutes with a low power near UV LED source. A series of thiol-functionalized thioxanthone (TX) derivatives were prepared and used for the photoinduced synthesis of Ag NPs and their surface functionalization and stabilization. Upon illumination, Ag+ ions are reduced by free radicals generated through an oxidoreductive process occurring between excited TX groups and N-methyldiethanolamine. This process generates monodispersed silver nanoparticles with an average diameter about 2-7 nm depending on the TX derivative used. Due to the strong interaction between Ag atoms and thiol groups of the ligands, AgNPs are capped in situ by TX derivatives and exhibit remarkable stability in solution. Subsequent studies carried out on silver NPs/TX nanoassemblies (designed as AgNPs@S-TX) demonstrated their potentials in free radical photopolymerization of acrylate monomers.
BibTeX:
@article{Niu2014,
  author = {Niu, S. L. and Schneider, R. and Vidal, L. and Hajjar-Garreau, S. and Balan, L.},
  title = {Light-assisted synthesis and functionalization of silver nanoparticles with thiol derivative thioxanthones: new insights into the engineering of metal/chromophore nanoassemblies},
  journal = {Journal of Nanoparticle Research},
  year = {2014},
  volume = {16},
  number = {2620},
  pages = {11 pages},
  doi = {http://doi.org/10.1007/s11051-014-2620-y}
}
Nouceiba, A., Limousy, L., Lendormi, T. and Sire, O. Simulation of the denitrification biological process with a s-system : a non conventional approach 2014 International Journal of Chemical Reactor Engineering
Vol. 12, pp. 683-694 
article  
BibTeX:
@article{Nouceiba2014,
  author = {Nouceiba, A. and Limousy, L. and Lendormi, T and Sire, O.},
  title = {Simulation of the denitrification biological process with a s-system : a non conventional approach},
  journal = {International Journal of Chemical Reactor Engineering},
  year = {2014},
  volume = {12},
  pages = {683-694}
}
Odarchenko, Y.I., Anokhin, D.V., Doblas, D., Rosenthal, M., Hernandez, J.J., Vidal, L., Sijbrandi, N.J., Kimenai, A.J., Mes, E.P.C., Broos, R., Bar, G., Dijkstra, P.J., Feijen, J., Soloviev, M. and Ivanov, D.A. Primary Chemical Sequence Ultimately Determines Crystal Thickness in Segmented All-Aliphatic Copolymers 2014 Macromolecules
Vol. 47(22), pp. 7890-7899 
article DOI  
Abstract: Thermoplastic elastomers (TPEs) are known to exhibit a phase-separated morphology which depends on their chemical structure and processing. The design of novel TPEs with predefined properties which are also independent of the material thermal history has so far remained a challenge. The focus of this work is on the semicrystalline morphology of all-aliphatic thermoplastic elastomers consisting of alternating polytetrahydrofuran (PTHF) segments and uniform glycine or beta-alanine bisoxalamide units. The thickness of the hard segment crystals was found to be highly monodisperse and independent of the sample thermal history. Using Nanocalorimetry, we observed that at cooling rates as high as 12 000 degrees C s1 the bisoxalamide segments can still crystallize although the crystallization temperature decreases by ca. 26 degrees C. The surface free energy of the hard block crystals is found to be extremely low (similar to 18 mJ m(-2)), which is likely due to the entropic contribution of soft segments forming tie chains bridging the neighboring crystals. To investigate the combined effect of crystal orientation and phase transitions, simultaneous time-resolved X-ray scattering and mechanical tensile tests were performed. Upon stretching, elastomeric PTHF segments with lengths above 1000 g mol(1) crystallize at ambient temperatures. Under these conditions two main morphologies were observed: at low strains the long axes of the fibril-like crystals were oriented parallel to the flow direction, whereas higher strains caused bisoxalamide crystal fragmentation and changed their preferential direction to the one perpendicular to the drawing direction. The chain tilts in the bisoxalamide crystals were calculated from the characteristic four-spot SAXS patterns and were similar to 5 degrees 16 degrees in the case of glycine end-groups and 24 degrees for alanine and propyl terminal groups. To our knowledge, this is the first attempt to determine the chain tilt for the nonlamellar crystals in block copolymers.
BibTeX:
@article{Odarchenko2014,
  author = {Odarchenko, Y. I. and Anokhin, D. V. and Doblas, D. and Rosenthal, M. and Hernandez, J. J. and Vidal, L. and Sijbrandi, N. J. and Kimenai, A. J. and Mes, E. P. C. and Broos, R. and Bar, G. and Dijkstra, P. J. and Feijen, J. and Soloviev, M. and Ivanov, D. A.},
  title = {Primary Chemical Sequence Ultimately Determines Crystal Thickness in Segmented All-Aliphatic Copolymers},
  journal = {Macromolecules},
  year = {2014},
  volume = {47},
  number = {22},
  pages = {7890--7899},
  doi = {http://doi.org/10.1021/ma501545b}
}
Ortiz, G., Nouali, H., Marichal, C., Chaplais, G. and Patarin, J. Versatile Energetic Behavior of ZIF-8 upon High Pressure Intrusion-Extrusion of Aqueous Electrolyte Solutions 2014 Journal of Physical Chemistry C
Vol. 118(14), pp. 7321-7328 
article DOI  
Abstract: Metal organic materials (MOFs) constitute very attractive materials for storage, separation, catalysis, and drug delivery because of their crystalline hybrid organic inorganic structures and their large porous volume. Here, we report the energetic behavior, in term of storage/restoration of mechanical energy, of ZIF-8 upon high pressure intrusion-extrusion of aqueous KCl, LiCl, and NaCl solutions of variable concentration. Comparison with the energetic performances of the "ZIF-8-water" system is performed. Whatever the nature of the electrolyte (KCl, LiCl, NaCl), an increase of the intrusion pressures and thereby of the stored energy are observed with the increasing of salt concentration. However, the three studied systems differ, at least for the highest concentrations, by behaving as a shock-absorber for KCl and as a bumper for NaCl and LiCl. A combination of several characterization techniques used before and after intrusion-extrusion experiments, i.e., X-ray diffraction, solid state NMR, and N-2 adsorption-desorption experiments, allows us to establish that the ZIF-8 network is preserved after such a treatment.
BibTeX:
@article{Ortiz2014,
  author = {Ortiz, G. and Nouali, H. and Marichal, C. and Chaplais, G. and Patarin, J.},
  title = {Versatile Energetic Behavior of ZIF-8 upon High Pressure Intrusion-Extrusion of Aqueous Electrolyte Solutions},
  journal = {Journal of Physical Chemistry C},
  year = {2014},
  volume = {118},
  number = {14},
  pages = {7321--7328},
  doi = {http://doi.org/10.1021/jp412354f}
}
Ortiz, G., Nouali, H., Marichal, C., Chaplais, G. and Patarin, J. Energetic Performances of "ZIF-71 Aqueous Solution" Systems: A Perfect Shock-Absorber with Water 2014 Journal of Physical Chemistry C
Vol. 118(37), pp. 21316-21322 
article DOI  
Abstract: Intrusion-extrusion experiments of water as well as electrolyte solutions (KCl 1 and 4 M) under high pressure were performed in metal-organic framework ZIF-71 (RHO-type structure) in order to study the performances of this system in energy absorption and storage. The experimental results reveal that "ZIF-71-water" system displays a perfect shock-absorber behavior, reproducible over several cycles. With this new studied system, the stored energy (25.5 J g(-1)) is almost doubled compared to that measured recently for "ZIF-8-water" system (13.3 J g(-1)) (SOD-type structure). When water is replaced by KCl aqueous solutions, a gain of intrusion pressure (74 and 96 MPa with KCl 1 and 4 M, respectively) is observed. However, for the highest salt concentration, the system evolves to a bumper behavior, and as confirmed by XRD analysis, the RHO-type structure collapses.
BibTeX:
@article{Ortiz2014c,
  author = {Ortiz, G. and Nouali, H. and Marichal, C. and Chaplais, G. and Patarin, J.},
  title = {Energetic Performances of "ZIF-71 Aqueous Solution" Systems: A Perfect Shock-Absorber with Water},
  journal = {Journal of Physical Chemistry C},
  year = {2014},
  volume = {118},
  number = {37},
  pages = {21316--21322},
  doi = {http://doi.org/10.1021/jp505484x}
}
Ortiz, G., Chaplais, G., Paillaud, J.L., Nouali, H., Patarin, J., Raya, J. and Marichal, C. New Insights into the Hydrogen Bond Network in Al-MIL-53 and Ga-MIL-53 2014 Journal of Physical Chemistry C
Vol. 118(38), pp. 22021-22029 
article DOI  
Abstract: Metal-organic framework-type Al-, Ga-, and Ga(OH,F)-MIL-53 have been characterized by solid-state NMR and powder X-ray diffraction (PXRD). H-1 2D double-quantum-single-quantum (DQ-SQ) magic angle spinning (MAS) NMR experiments unambiguously evidence two inequivalent water molecules in Al-MIL-53_np_H2O. A careful reinvestigation of the XRD structure of hydrated Al-MIL-53 proves, for the first time, the doubling of the unit cell supporting the presence of two inequivalent water molecules. One type of water molecule is located in the type A channel, interacting with the aromatic protons of framework organic moieties, whereas the other type of water molecule is in the type B channel far away from aromatic protons. Assignment of the corresponding H-1 resonances to each water molecule was possible. H-1 1D MAS NMR leads to the same conclusion (i.e., two inequivalent water molecules) for the isostructural gallium-based material thanks to the positioning of the hydrogen atoms by Rietveld refinement. Moreover, when Ga-MIL-53 is prepared with fluorine in the synthesis medium (giving Ga(OH,F)-MIL-53_np_H2O), the situation is different. 2D H-1-C-13 heteronuclear correlation MAS NMR, high-field H-1 DQ-SQ and radio-frequency-driven recoupling MAS NMR indicate that only one type of water molecule is found in this material, in agreement with the structure.
BibTeX:
@article{Ortiz2014d,
  author = {Ortiz, G. and Chaplais, G. and Paillaud, J. L. and Nouali, H. and Patarin, J. and Raya, J. and Marichal, C.},
  title = {New Insights into the Hydrogen Bond Network in Al-MIL-53 and Ga-MIL-53},
  journal = {Journal of Physical Chemistry C},
  year = {2014},
  volume = {118},
  number = {38},
  pages = {22021--22029},
  doi = {http://doi.org/10.1021/jp505893s}
}
Parida, D., Serra, C.A., Garg, D.K., Hoarau, Y., Bally-le-Gall, F., Muller, R. and Bouquey, M. Coil Flow Inversion as a Route To Control Polymerization in Microreactors 2014 Macromolecules
Vol. 47(10), pp. 3282-3287 
article DOI  
Abstract: Linear and branched polymers of 2-(dimethylamino)ethyl methacrylate (PDMAEMA) were synthesized in flow by atom transfer radical polymerization (ATRP) and self-condensing vinyl copolymerization adapted to ATRP, respectively, in capillary type stainless steel coiled tube (CT) microreactors. Coil flow inversion (CFI) was introduced to achieve better mixing and narrower residence time distributions during polymerization. This strategy was adopted to improve control over macromolecular characteristics and polymer architecture. Polydispersity index (PDI), as an overall indicator of control over polymerization, was significantly lower for CFI in the case of linear PDMAEMA, 1.39 compared to 1.53 for CT. For branched polymers containing up to 10 mol % of inimer, a reduced PDI was also obtained for CFI microreactor. As for the branching efficiency, it was found to follow the following trend CFI > CT > batch reactor.
BibTeX:
@article{Parida2014,
  author = {Parida, D. and Serra, C. A. and Garg, D. K. and Hoarau, Y. and Bally-le-Gall, Florence and Muller, R. and Bouquey, M.},
  title = {Coil Flow Inversion as a Route To Control Polymerization in Microreactors},
  journal = {Macromolecules},
  year = {2014},
  volume = {47},
  number = {10},
  pages = {3282--3287},
  doi = {http://doi.org/10.1021/ma5001628}
}
Parmentier, J., Gaslain, F.O.M., Ersen, O., Centeno, T.A. and Solovyov, L.A. Structure and Sorption Properties of a Zeolite-Templated Carbon with the EMT Structure Type 2014 Langmuir
Vol. 30(1), pp. 297-307 
article DOI  
Abstract: An ordered microporous carbon material was prepared by the nanocasting process using the EMC-2 zeolite (EMT structure type) as a hard template. X-ray diffraction (XRD) and transmission electron microscopy (TEM) revealed long-range ordering in the material that resulted from the negative replication of the host template. The carbon porous network replicating the zeolite structure was modeled by overlapped spherical voids with diameters determined from the XRD pattern that displayed up to six distinct peaks. The surface delimiting the 3D interconnected porosity of the solid has a complex morphology. The pore size distribution calculated from the XRD-derived structural model is characterized by a maximum at 1.04 nm related to the long-range-ordered microporous network. Complementary studies by immersion calorimetry revealed that most of the porosity was characterized by a size above 1.5 nm. These porous features were compared to data resulting from classical analysis (DR, DFT, BET, etc.) of the N-2 (77 K) and CO2 (low and high pressure, 273 K) physisorption isotherms. The limitations of these approaches are discussed in light of the pore size distribution consistently determined by XRD and immersion calorimetry measurements.
BibTeX:
@article{Parmentier2014,
  author = {Parmentier, J. and Gaslain, F. O. M. and Ersen, O. and Centeno, T. A. and Solovyov, L. A.},
  title = {Structure and Sorption Properties of a Zeolite-Templated Carbon with the EMT Structure Type},
  journal = {Langmuir},
  year = {2014},
  volume = {30},
  number = {1},
  pages = {297--307},
  doi = {http://doi.org/10.1021/la402762v}
}
Pirzado, A.A., Jouane, Y., Le Normand, F., Akilimali, R., Papaefthimiou, V., Ghimbeu Camelia Matei, C.M. and Janowska, I. Electrical Transport in "Few-Layer Graphene" Film Prepared by the Hot-Spray Technique: The Effect of Thermal Treatment 2014 Journal of Physical Chemistry C
Vol. 118(2), pp. 873-880 
article DOI  
Abstract: We investigate charge transport of a randomly stacked few-layer graphene (FLG) film supported on quartz plate, as-prepared and after annealing treatment. The film is prepared by a simple, cheap and rapid hot spray technique from a FLG suspension, while FLG was obtained in our previous report by high yield mechanical exfoliation of pencil lead. According to Hall Effect measurements, the annealing process has strong impact on the conductivity of the FLG film, despite its low oxygen/defect content as confirmed by X-ray photoelectron spectroscopy (XPS), Raman, and photoluminescense spectroscopy. The nonohmic behavior along with a sheet resistance (R-square) decreases from a few tens to a few kilo-ohms is observed for the FLG film, whereas after thermal treatment, a constant R-square of 0.7 k Omega is recorded. The improvement of conductivity in the FLG film is attributed mainly to desorption of toluene from the FLG surface according to the TPD-MS analysis and not only to the oxygen decrease as generally reported.
BibTeX:
@article{Pirzado2014,
  author = {Pirzado, A. A. and Jouane, Y. and Le Normand, F. and Akilimali, R. and Papaefthimiou, V. and Ghimbeu, Camelia Matei, C. M. and Janowska, I.},
  title = {Electrical Transport in "Few-Layer Graphene" Film Prepared by the Hot-Spray Technique: The Effect of Thermal Treatment},
  journal = {Journal of Physical Chemistry C},
  year = {2014},
  volume = {118},
  number = {2},
  pages = {873--880},
  doi = {http://doi.org/10.1021/jp4103433}
}
Postnikov, V.A., Odarchenko, Y.I., Iovlev, A.V., Bruevich, V.V., Pereverzev, A.Y., Kudryashova, L.G., Sobornov, V.V., Vidal, L., Chernyshov, D., Luponosov, Y.N., Borshchev, O.V., Surin, N.M., Ponomarenko, S.A., Ivanov, D.A. and Paraschuk, D.Y. Molecularly Smooth Single-Crystalline Films of Thiophene-Phenylene Co-Oligomers Grown at the Gas-Liquid Interface 2014 Crystal Growth & Design
Vol. 14(4), pp. 1726-1737 
article DOI  
Abstract: Single crystals of thiophene-phenelyne co-oligomers (TPCOs) have previously shown their potential for organic optoelectronics. Here we report on solution growth of large-area thin single-crystalline films of TPCOs at the gas liquid interface by using solvent-antisolvent crystallization, isothermal slow solvent evaporation, and isochoric cooling. The studied co-oligomers contain identical conjugated core (5,5'-diphyenyl-2,2'-bithiophene) and different terminal substituents, fluorine, trimethylsilyl, or trifluoromethyl. The fabricated films are molecularly smooth over areas larger than 10 X 10 mu m(2), which is of high importance for organic field-effect devices. The low-defect structure of the TPCO crystals is suggested from the monoexponential kinetics of the PL decay measured in a wide dynamic range (up to four decades) and from low crystal mosaicity assessed by microfocus X-ray diffraction. The TPCO crystal structure is solved using a combination of X-ray and electron diffraction. The terminal substituents affect the crystal structure of TPCOs, bringing about the formation of a noncentrosymmetric crystal lattice with a crystal symmetry Cc for the bulkiest trimethylsilyl terminal groups, which is unusual for linear conjugated oligomers. Comparing the different crystal growth techniques, it is concluded that the solvent-antisolvent crystallization is the most robust for fabrication of single-crystalline TPCOs films. The possible nucleation and crystallization mechanisms operating at the gas-solution interface are discussed.
BibTeX:
@article{Postnikov2014,
  author = {Postnikov, V. A. and Odarchenko, Y. I. and Iovlev, A. V. and Bruevich, V. V. and Pereverzev, A. Y. and Kudryashova, L. G. and Sobornov, V. V. and Vidal, L. and Chernyshov, D. and Luponosov, Y. N. and Borshchev, O. V. and Surin, N. M. and Ponomarenko, S. A. and Ivanov, D. A. and Paraschuk, D. Y.},
  title = {Molecularly Smooth Single-Crystalline Films of Thiophene-Phenylene Co-Oligomers Grown at the Gas-Liquid Interface},
  journal = {Crystal Growth & Design},
  year = {2014},
  volume = {14},
  number = {4},
  pages = {1726--1737},
  doi = {http://doi.org/10.1021/cg401876a}
}
de Poulpiquet, A., Marques-Knopf, H., Wernert, V., Giudici-Orticoni, M.T., Gadiou, R. and Lojou, E. Carbon nanofiber mesoporous films: efficient platforms for bio-hydrogen oxidation in biofuel cells 2014 Physical Chemistry Chemical Physics
Vol. 16(4), pp. 1366-1378 
article DOI  
Abstract: The discovery of oxygen and carbon monoxide tolerant [NiFe] hydrogenases was the first necessary step toward the definition of a novel generation of hydrogen fed biofuel cells. The next important milestone is now to identify and overcome bottlenecks limiting the current densities, hence the power densities. In the present work we report for the first time a comprehensive study of herringbone carbon nanofiber mesoporous films as platforms for enhanced biooxidation of hydrogen. The 3D network allows mediatorless hydrogen oxidation by the membrane-bound hydrogenase from the hyperthermophilic bacterium Aquifex aeolicus. We investigate the key physico-chemical parameters that enhance the catalytic efficiency, including surface chemistry and hierarchical porosity of the biohybrid film. We also emphasize that the catalytic current is limited by mass transport inside the mesoporous carbon nanofiber film. Provided hydrogen is supplied inside the carbon film, the combination of the hierarchical porosity of the carbon nanofiber film with the hydrophobicity of the treated carbon material results in very high efficiency of the bioelectrode. By optimization of the whole procedure, current densities as high as 4.5 mA cm(-2) are reached with a turnover frequency of 48 s(-1). This current density is almost 100 times higher than when hydrogenase is simply adsorbed at a bare graphite electrode, and more than 5 times higher than the average of the previous reported current densities at carbon nanotube modified electrodes, suggesting that carbon nanofibers can be efficiently used in future sustainable H-2/O-2 biofuel cells.
BibTeX:
@article{Poulpiquet2014,
  author = {de Poulpiquet, A. and Marques-Knopf, H. and Wernert, V. and Giudici-Orticoni, M. T. and Gadiou, R. and Lojou, E.},
  title = {Carbon nanofiber mesoporous films: efficient platforms for bio-hydrogen oxidation in biofuel cells},
  journal = {Physical Chemistry Chemical Physics},
  year = {2014},
  volume = {16},
  number = {4},
  pages = {1366--1378},
  doi = {http://doi.org/10.1039/c3cp54631d}
}
de Poulpiquet, A., Ciaccafava, A., Gadiou, R., Gounel, S., Giudici-Orticoni, M.T., Mano, N. and Lojou, E. Design of a H-2/O-2 biofuel cell based on thermostable enzymes 2014 Electrochemistry Communications
Vol. 42, pp. 72-74 
article DOI  
Abstract: A new generation of mediatorless H-2/O-2 biofuel cells was designed based on a hyperthermophilic O-2-tolerant hydrogenase and a thermostable bilirubin oxidase both immobilized on carbon nanofibers. A power density up to 1.5 +/- 0.2 mW center dot cm(-2) at 60 degrees C was reached. This first demonstration of a H-2/O-2 biofuel cell able to deliver electricity over a wide range of temperatures, from 30 C up to 80 degrees C, and over a large pH window, allows considering this device as an alternative power supply for small portable applications in various environments, including extreme ones. (c) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{Poulpiquet2014a,
  author = {de Poulpiquet, A. and Ciaccafava, A. and Gadiou, R. and Gounel, S. and Giudici-Orticoni, M. T. and Mano, N. and Lojou, E.},
  title = {Design of a H-2/O-2 biofuel cell based on thermostable enzymes},
  journal = {Electrochemistry Communications},
  year = {2014},
  volume = {42},
  pages = {72--74},
  doi = {http://doi.org/10.1016/j.elecom2014.02.012}
}
Rajab, M., Mougin, K., Derivaz, M., Dentel, D., Josien, L., Vidal, L., Luchnikov, V., Hamieh, T., Hariri, K., Toufaily, J. and Haidara, H. Control of Spatial Organization of Gold Nanoparticles Using Cylindrical Nanopores of Block Copolymers Films 2014 Physics Procedia
Vol. 55(0)8th International Conference on Material Sciences, CSM8-ISM5, pp. 396-402 
article URL 
Abstract: Abstract In this paper, a sequential process of elaboration of hybrid nanostructured composite films has been proposed. The combination of phase separation in poly(styrene-block-4vinylpyridine) (PS-P4VP) block copolymer leading to the formation of nanopores, and gold nanocolloids synthesis confined in the nanoholes has allowed the facile fabrication of hexagonally arranged gold nanoparticles (NPs) onto silicon wafer. In particular, the nucleation and growth of gold nanoparticles took place within the nanopores, where they are confined in both size and shape the formed Au NPs. The resulting hybrid nanoscomposite has been characterized by Atomic Force Microscopy (AFM) and X-Ray Spectroscopy (XPS). This facile and simple process represents an opened pathway to several technologically important materials fabrication such as hierarchical and ordered crystal architectures. Indeed, the approach based on solvent phase, which is particularly attractive due to its low energy requirement, and the safety and environmentally gentle processing conditions.
BibTeX:
@article{Rajab2014,
  author = {Rajab, M. and Mougin, K. and Derivaz, M. and Dentel, D. and Josien, L. and Vidal, L. and Luchnikov, V. and Hamieh, T. and Hariri, K. and Toufaily, J. and Haidara, H.},
  title = {Control of Spatial Organization of Gold Nanoparticles Using Cylindrical Nanopores of Block Copolymers Films},
  booktitle = {8th International Conference on Material Sciences, CSM8-ISM5},
  journal = {Physics Procedia},
  year = {2014},
  volume = {55},
  number = {0},
  pages = {396--402},
  url = {http://www.sciencedirect.com/science/article/pii/S1875389214001199}
}
Renard, C., Vincent, L., Gardes, C., Boukhicha, R., Oliviero, E., Patriarche, G., Fossard, F., Hajjar, S., Bubendorff, J.L., Pirri, C. and Bouchier, D. Investigation on Mn doping of Ge nanowires for spintronics 2014 Physica Status Solidi C: Current Topics In Solid State Physics, Vol 11, No 2
Vol. 11(2), pp. 315-319 
article DOI  
BibTeX:
@article{Renard2014,
  author = {Renard, C. and Vincent, L. and Gardes, C. and Boukhicha, R. and Oliviero, E. and Patriarche, G. and Fossard, F. and Hajjar, S. and Bubendorff, J. L. and Pirri, C. and Bouchier, D.},
  title = {Investigation on Mn doping of Ge nanowires for spintronics},
  journal = {Physica Status Solidi C: Current Topics In Solid State Physics, Vol 11, No 2},
  year = {2014},
  volume = {11},
  number = {2},
  pages = {315--319},
  doi = {http://doi.org/10.1002/pssc.201300150}
}
Rosenthal, M., Doblas, D., Hernandez, J.J., Odarchenko, Y.I., Burghammer, M., Di Cola, E., Spitzer, D., Antipov, A.E., Aldoshin, L.S. and Ivanov, D.A. High-resolution thermal imaging with a combination of nano-focus X-ray diffraction and ultra-fast chip calorimetry 2014 Journal of Synchrotron Radiation
Vol. 21, pp. 223-228 
article DOI  
Abstract: A microelectromechanical-systems-based calorimeter designed for use on a synchrotron nano-focused X-ray beamline is described. This instrument allows quantitative DC and AC calorimetric measurements over a broad range of heating/cooling rates (<= 100000 K s(-1)) and temperature modulation frequencies (<= 1 kHz). The calorimeter was used for high-resolution thermal imaging of nanogram-sized samples subjected to X-ray-induced heating. For a 46 ng indium particle, the measured temperature rise reaches similar to 0.2 K, and is directly correlated to the X-ray absorption. Thermal imaging can be useful for studies of heterogeneous materials exhibiting physical and/or chemical transformations. Moreover, the technique can be extended to three-dimensional thermal nanotomography.
BibTeX:
@article{Rosenthal2014,
  author = {Rosenthal, M. and Doblas, D. and Hernandez, J. J. and Odarchenko, Y. I. and Burghammer, M. and Di Cola, E. and Spitzer, D. and Antipov, A. E. and Aldoshin, L. S. and Ivanov, D. A.},
  title = {High-resolution thermal imaging with a combination of nano-focus X-ray diffraction and ultra-fast chip calorimetry},
  journal = {Journal of Synchrotron Radiation},
  year = {2014},
  volume = {21},
  pages = {223--228},
  doi = {http://doi.org/10.1107/S1600577513024892}
}
Ryzhikov, A., Khay, I., Nouali, H., Daou, J. and Patarin, J. Drastic change of the intrusion-extrusion behavior of electrolyte solutions in pure silica (star)BEA-type zeolite 2014 Physical Chemistry Chemical Physics
Vol. 16(33), pp. 17893-17899 
article DOI  
Abstract: High pressure water and electrolyte solutions intrusion extrusion experiments in pure-silica (star)BEA-type zeolite (zeosit beta) were performed in order to study the performances of these systems in energy absorption and storage. The "zeosil beta-water" system displays a bumper behavior with an intrusion pressure of 53 MPa and an absorbed energy of 8.3 J g(-1). For the "zeosil beta-LiCl aqueous solutions" systems the intrusion pressure increases with the LiCl concentration to 95, 111 and 115 MPa for 10, 15 and 20 M solution, respectively. However, for concentrations above 10 M, a transformation of the system behavior from bumper to shock-absorber is observed. The zeolite samples were characterized by several structural and physicochemical methods (XRD, TGA, solid-state NMR, N-2 physisorption, ICP-OES) before and after intrusion-extrusion experiments in order to understand the influence of the LiCl concentration on the intrusion-extrusion behavior. It is shown that the intrusion of water and LiCl solutions with low concentration leads to the formation of Si-(OSi)(3)OH groups, whereas no defects are observed under intrusion of concentrated LiCl solutions. A possible mechanism of LiCl solution intrusion based on separate intrusion of H2O molecules and Li(H2O)(x)(+) ions is proposed.
BibTeX:
@article{Ryzhikov2014,
  author = {Ryzhikov, A. and Khay, I. and Nouali, H. and Daou, J. and Patarin, J.},
  title = {Drastic change of the intrusion-extrusion behavior of electrolyte solutions in pure silica (star)BEA-type zeolite},
  journal = {Physical Chemistry Chemical Physics},
  year = {2014},
  volume = {16},
  number = {33},
  pages = {17893--17899},
  doi = {http://doi.org/10.1039/c4cp01862a}
}
Ryzhikov, A., Khay, I., Nouali, H., Daou, J. and Patarin, J. Energetic performances of pure silica STF and MTT-type zeolites under high pressure water intrusion 2014 Rsc Advances
Vol. 4(71), pp. 37655-37661 
article DOI  
Abstract: Experimental water intrusion-extrusion isotherms were performed at room temperature on two pure silica MTT- and STF-type hydrophobic zeolites (zeosils) with 1D channel and cage pore systems, respectively by applying or releasing a high hydraulic pressure. These zeosils were obtained by hydrothermal synthesis in fluoride medium and characterized by structural and physicochemical methods before and after water intrusion. The system "MTT-type zeosil-water" displays a spring behavior with an intrusion pressure of 176 MPa and a stored energy of 5.3 J g(-1). No influence of water intrusion on the structure of MTT-type zeosil was found. The "STF-type zeosil-water" system shows a combination of shock-absorber and bumper behavior in the first cycle with an intrusion pressure of 51 MPa. Nevertheless in the following cycles the system demonstrates a spring behavior with an intrusion pressure of 38 MPa. Such behavior can be explained by the formation of silanol groups under intrusion in some pores confirmed by NMR spectroscopy and TG data.
BibTeX:
@article{Ryzhikov2014a,
  author = {Ryzhikov, A. and Khay, I. and Nouali, H. and Daou, J. and Patarin, J.},
  title = {Energetic performances of pure silica STF and MTT-type zeolites under high pressure water intrusion},
  journal = {Rsc Advances},
  year = {2014},
  volume = {4},
  number = {71},
  pages = {37655--37661},
  doi = {http://doi.org/10.1039/c4ra05519e}
}
de Saint-Aubin, C., Hassan, M.E., Kunemann, P., Patois, T., Lakard, B., Fabre, R., Hemmerle, J., Schaaf, P., Nardin, M. and Vallat, M.F. PEDOT-PSS based 2-in-1 step-by-step films: A refined study 2014 Synthetic Metals
Vol. 194, pp. 38-46 
article DOI  
BibTeX:
@article{Saint-Aubin2014,
  author = {de Saint-Aubin, C. and Hassan, M. E. and Kunemann, P. and Patois, T. and Lakard, B. and Fabre, R. and Hemmerle, J. and Schaaf, P. and Nardin, M. and Vallat, M. F.},
  title = {PEDOT-PSS based 2-in-1 step-by-step films: A refined study},
  journal = {Synthetic Metals},
  year = {2014},
  volume = {194},
  pages = {38--46},
  doi = {http://doi.org/10.1016/j.synthmet.2014.04.003}
}
Saito, Y., Luchnikov, V., Inaba, A. and Tamura, K. Self-scrolling ability of differentially acetylated chitosan film 2014 Carbohydrate Polymers
Vol. 109, pp. 44-48 
article DOI  
Abstract: Chitosan film cast on a glass slide was exposed to acetic anhydride vapor, resulting in an acetylation gradient in the film, with preferential acetylation of the exposed surface. The difference in degree of acetylation between the two surfaces of the peeled film was confirmed by attenuated total reflection infrared spectroscopy. Upon immersion of the film in water, differential swelling occurred because the more highly acetylated surface absorbed less water, and the resulting bending moment caused self-scrolling with the more highly acetylated surface inside. Simultaneous peeling and scrolling of films with a thickness of micrometer order, using dilute aqueous hydrofluoric acid, afforded tightly rolled chitosan microtubes. This simple self-scrolling mechanism is potentially applicable for micro-scale design with various naturally occurring polymers. (C) 2014 Elsevier Ltd. All rights reserved.
BibTeX:
@article{Saito2014,
  author = {Saito, Y. and Luchnikov, V. and Inaba, A. and Tamura, K.},
  title = {Self-scrolling ability of differentially acetylated chitosan film},
  journal = {Carbohydrate Polymers},
  year = {2014},
  volume = {109},
  pages = {44--48},
  doi = {http://doi.org/10.1016/j.carbpol.2014.03.047}
}
Savel, P., Akdas-Kilig, H., Malval, J.P., Spangenberg, A., Roisnela, T. and Fillaut, J.L. Metal-induced dimensionality tuning in a series of bipyrimidine-based ligands: a tool to enhance two-photon absorption 2014 Journal of Materials Chemistry C
Vol. 2(2), pp. 295-305 
article DOI  
Abstract: We report the synthesis, the photophysical and the two-photon absorption (2PA) properties of a series of octupolar bipyrimidine-based ligands incorporating N-substituted amines as terminal donor groups. The effect of replacing phenylvinylene pi-conjugated linkers by fluorenylvinylene ones was also investigated. The linear absorption spectrum of these compounds is dominated by an intensive charge transfer band which is sensitive to N-substitution and the pi-bridge nature. The excitation anisotropy spectrum indicates that this band encompasses multiple S-0 -> S-n transitions, whose occurrence is well rationalized on the basis of the Frenkel exciton model. The 2PA spectrum also corroborates the presence of several electronic transitions. In apolar or moderately polar medium, excited ligands mainly deactivate through a highly emissive intramolecular charge transfer (ICT) state localized within a single branch of the chromophore. In highly polar medium, the solvent-induced stabilization of the low emissive twisted intramolecular charge transfer (TICT) state leads to a severe quenching of the fluorescence. The same mechanism is observed upon complexation with Zn2+. According to single-crystal X-ray analyses, metal-induced planarization of the bipyrimidine chelating site was observed for the short length ligands. Such a dimensional change from D-2d to D-2h symmetry leads to a decrease of 2PA cross-sections with respect to the free ligands. A divergent effect is observed for the complex with the long length ligand since the three-dimensional structure is maintained which induces a sizeable increase of the 2PA cross-section with a maximum value of up to 2000 GM.
BibTeX:
@article{Savel2014,
  author = {Savel, P. and Akdas-Kilig, H. and Malval, J. P. and Spangenberg, A. and Roisnela, T. and Fillaut, J. L.},
  title = {Metal-induced dimensionality tuning in a series of bipyrimidine-based ligands: a tool to enhance two-photon absorption},
  journal = {Journal of Materials Chemistry C},
  year = {2014},
  volume = {2},
  number = {2},
  pages = {295--305},
  doi = {http://doi.org/10.1039/c3tc31370k}
}
Schejn, A., Fregnaux, M., Commenge, J.M., Balan, L., Falk, L. and Schneider, R. Size-controlled synthesis of ZnO quantum dots in microreactors 2014 Nanotechnology
Vol. 25(14), pp. 145606 
article DOI  
Abstract: In this paper, we report on a continuous-flow microreactor process to prepare ZnO quantum dots (QDs) with widely tunable particle size and photoluminescence emission wavelengths. X-ray diffraction, electron diffraction, UV-vis, photoluminescence and transmission electron microscopy measurements were used to characterize the synthesized ZnO QDs. By varying operating conditions (temperature, flow rate) or the capping ligand, ZnO QDs with diameters ranging from 3.6 to 5.2 nm and fluorescence maxima from 500 to 560 nm were prepared. Results obtained show that low reaction temperatures (20 or 35 degrees C), high flow rates and the use of propionic acid as a stabilizing agent are favorable for the production of ZnO QDs with high photoluminescence quantum yields (up to 30%).
BibTeX:
@article{Schejn2014,
  author = {Schejn, A. and Fregnaux, M. and Commenge, J. M. and Balan, L. and Falk, L. and Schneider, R.},
  title = {Size-controlled synthesis of ZnO quantum dots in microreactors},
  journal = {Nanotechnology},
  year = {2014},
  volume = {25},
  number = {14},
  pages = {145606},
  doi = {http://doi.org/10.1088/0957-4484/25/14/145606}
}
Schejn, A., Balan, L., Falk, V., Aranda, L., Medjahdi, G. and Schneider, R. Controlling ZIF-8 nano- and microcrystal formation and reactivity through zinc salt variations 2014 Crystengcomm
Vol. 16(21), pp. 4493-4500 
article DOI  
Abstract: We report here a simple method for controlling the crystal size and morphology of zeolitic imidazolate framework-8 (ZIF-8) nanocrystals in methanol solution. ZIF-8 crystals were prepared by mixing 2-methylimidazole (Hmim) with various zinc salts for 1 h and using a Hmim/Zn(+2) salt molar ratio of 8/1. All products prepared were assigned to a sodalite-type structure and both particle size and morphology were found to be dependent on the reactivity of the Zn(+2) salt. Small ZIF-8 crystals with diameters varying between ca. 50 and 200 nm were obtained with reactive zinc salts like Zn(acac)(2), Zn(NO3)(2), ZnSO4 or Zn(ClO4)(2) as demonstrated by SEM, TEM and DLS analyses. The use of ZnCl2, Zn(OAc)(2) or ZnI2 afforded crystals with sizes varying between ca. 350 and 650 nm. Finally, the low reactive ZnBr2 salt was found to generate microsized crystals. Taking ZIF-8 crystals prepared from Zn(NO3)(2), Zn(OAc)(2) and ZnBr2 as representatives and through thermogravimetric analysis and BET measurements, we also demonstrated that changes in particle size induced changes in stability and adsorption properties. The small sized ZIF-8 crystals produced from Zn(NO3)(2) were found to exhibit the highest surface area (1700 m(2) g(-1)) and the best catalytic activity in Knoevenagel and Friedlander reactions.
BibTeX:
@article{Schejn2014b,
  author = {Schejn, A. and Balan, L. and Falk, V. and Aranda, L. and Medjahdi, G. and Schneider, R.},
  title = {Controlling ZIF-8 nano- and microcrystal formation and reactivity through zinc salt variations},
  journal = {Crystengcomm},
  year = {2014},
  volume = {16},
  number = {21},
  pages = {4493--4500},
  doi = {http://doi.org/10.1039/c3ce42485e}
}
Schlienger, S., Ducrot-Boisgontier, C., Delmotte, L., Guth, J.L. and Parmentier, J. History of the Micelles: A Key Parameter for the Formation Mechanism of Ordered Mesoporous Carbons via a Polymerized Mesophase 2014 Journal of Physical Chemistry C
Vol. 118(22), pp. 11919-11927 
article DOI  
Abstract: New insights into the formation mechanism of a polymerized mesophase (space group Im (3) over barm) and its derived order mesostructured carbon phase (denoted FDU-16) were evidenced by a slight modification of its synthesis conditions using proton nuclear magnetic resonance (NMR) relaxometry (T-2 spin-spin relaxation time), dynamic light scattering (DLS), small-angle X-ray diffraction (SAXRD), N-2 physisorption (77 K), and scanning electron microscopy (SEM). The preparation of those materials is based on the self-assembly of a prepolymer (phenol-formaldehyde resin called resol) and a pyrolysable surfactant (Pluronic F127, PEO106PPO70PEO106). The former is the carbon precursor, and the latter is the pore structuring agent and also the porogen. The resol and the F127 solutions are usually mixed at room temperature before being heated at 65 degrees C to promote the polymerization of the resol into a polymerized mesophase that precipates. That phase is further carbonized into a mesostructured porous carbon. By a slight change of the mixing temperature around the critical micellar temperature of the F127 amphiphilic surfactant (similar to 25 degrees C), different formation pathways were observed, visually and thanks to DLS and NMR relaxometry techniques. It is proposed that the mixing temperature influences, in the early stage of the synthesis, both the resol-bound micelles (e.g., resol localization and solubility in the micelles) and the concentration of the free resol in the solution. It leads then to different kinetics of the free resol polymerization and to different evolutions of the intermediate colloidal particle populations with precipitation times ranging from 40 to 120 h. That synthesis parameter also influences the properties of the final mesostructured carbon materials by modifying their rhombododecahedral macroscopic morphology, their body-centered cubic mesostructural arrangement, and their porosity. That study highlights the high sensitivity of surfactant templated mesostructured materials toward the mixing temperature. That key parameter is rarely investigated and deserves to be systematically mentioned in the literature to avoid unexplained problems of reproducibility.
BibTeX:
@article{Schlienger2014,
  author = {Schlienger, S. and Ducrot-Boisgontier, C. and Delmotte, L. and Guth, J. L. and Parmentier, J.},
  title = {History of the Micelles: A Key Parameter for the Formation Mechanism of Ordered Mesoporous Carbons via a Polymerized Mesophase},
  journal = {Journal of Physical Chemistry C},
  year = {2014},
  volume = {118},
  number = {22},
  pages = {11919--11927},
  doi = {http://doi.org/10.1021/jp301167h}
}
Schonwalder, S.M.S., Bally-Le-Gall Florence, Heinke, L., Azucena, C., Bulut, O.D., Heissler, S., Kirschhofer, F., Gebauer, T.P., Neffe, A.T., Lendlein, A., Brenner-Weiss, G., Lahann, J., Welle, A. and OveBally-Le-Gall Florence Interaction of Human Plasma Proteins with Thin Gelatin-Based Hydrogel Films: A QCM-D and ToF-SIMS Study 2014 Biomacromolecules
Vol. 15(7), pp. 2398-2406 
article DOI  
Abstract: In the fields of surgery and regenerative medicine, it is crucial to understand the interactions of proteins with the biomaterials used as implants. Protein adsorption directly influences cell-material interactions in vivo and, as a result, regulates, for example, cell adhesion on the surface of the implant. Therefore, the development of suitable analytical techniques together with well-defined model systems allowing for the detection, characterization, and quantification of protein adsorbates is essential. In this study, a protocol for the deposition of highly stable, thin gelatin-based films on various substrates has been developed. The hydrogel films were characterized morphologically and chemically. Due to the obtained low thickness of the hydrogel layer, this setup allowed for a quantitative study on the interaction of human proteins (albumin and fibrinogen) with the hydrogel by Quartz Crystal Microbalance with Dissipation Monitoring (QCM-D). This technique enables the determination of adsorbant mass and changes in the shear modulus of the hydrogel layer upon adsorption of human proteins. Furthermore, Secondary Ion Mass Spectrometry and principal component analysis was applied to monitor the changed composition of the topmost adsorbate layer. This approach opens interesting perspectives for a sensitive screening of viscoelastic biomaterials that could be used for regenerative medicine.
BibTeX:
@article{Schonwalder2014,
  author = {Schonwalder, S. M. S. and Bally-Le-Gall Florence, and Heinke, L. and Azucena, C. and Bulut, O. D. and Heissler, S. and Kirschhofer, F. and Gebauer, T. P. and Neffe, A. T. and Lendlein, A. and Brenner-Weiss, G. and Lahann, J. and Welle, A. and OveBally-Le-Gall Florence,},
  title = {Interaction of Human Plasma Proteins with Thin Gelatin-Based Hydrogel Films: A QCM-D and ToF-SIMS Study},
  journal = {Biomacromolecules},
  year = {2014},
  volume = {15},
  number = {7},
  pages = {2398--2406},
  doi = {http://doi.org/10.1021/bm500750v}
}
Schwertz, M., Lemonnier, S., Barraud, E., Carrado, A., Vallat, M.F. and Nardin, M. Consolidation by Spark Plasma Sintering of Polyimide and Polyetheretherketone 2014 Journal of Applied Polymer Science
Vol. 131(18), pp. 40783 
article DOI  
Abstract: This article presents two high- temperature thermoplastic powders which were sintered by spark plasma sintering in order to get homogeneous mechanical properties. Dense polyimide (PI) and polyetheretherketone (PEEK) specimens were obtained at temperatures as low as 320 degrees C for PI and 200 degrees C for PEEK, respectively. Relative densities higher than 99% were reached for both materials. In order to characterize their properties, in situ measurements with compression and hardness tests were carried out on sintered samples. This method allowed to obtain polymeric materials with improved mechanical properties. (C) 2014 Wiley Periodicals, Inc.
BibTeX:
@article{Schwertz2014,
  author = {Schwertz, M. and Lemonnier, S. and Barraud, E. and Carrado, A. and Vallat, M. F. and Nardin, M.},
  title = {Consolidation by Spark Plasma Sintering of Polyimide and Polyetheretherketone},
  journal = {Journal of Applied Polymer Science},
  year = {2014},
  volume = {131},
  number = {18},
  pages = {40783},
  doi = {http://doi.org/10.1002/app.40783}
}
Sima, F., Axente, E., Iordache, I., Luculescu, C., Gallet, O., Anselme, K. and Mihailescu, N. Combinatorial Matrix Assisted Pulsed Laser Evaporation of a biodegradable polymer and fibronectin for protein immobilization and controlled release 2014 Applied Surface Science
Vol. 306, pp. 75-79 
article DOI  
Abstract: Defined protein quantities were embedded in situ in a biodegradable polymer coating during simultaneous laser vaporization of two targets. Fibronectin (FN) and poly-DL-lactide (PDLLA) were transferred and immobilized concomitantly by Combinatorial Matrix Assisted Pulsed Laser Evaporation onto solid substrates. The film surface with gradient of composition was characterized by optical, scanning electron microscopy and profilometry. Micrometric FN packages were visualized in the polymeric matrix by confocal microscopy. The composition of FN was investigated by FUR and tiFTIR analyses in a polymeric matrix with different thickness. (C) 2014 Elsevier B.V. All rights reserved.
BibTeX:
@article{Sima2014,
  author = {Sima, F. and Axente, E. and Iordache, I. and Luculescu, C. and Gallet, O. and Anselme, K. and Mihailescu, N.},
  title = {Combinatorial Matrix Assisted Pulsed Laser Evaporation of a biodegradable polymer and fibronectin for protein immobilization and controlled release},
  journal = {Applied Surface Science},
  year = {2014},
  volume = {306},
  pages = {75--79},
  doi = {http://doi.org/10.1016/j.apsusc.2014.03.056}
}
SMITTHIPONG, W., Tantaherdtam, R., rungsanthien , K., Suwanruji, P., sriroth , K., Radabutra, S., Thanawan, S., VALLAT, M.-F., Nardin, M., Mougin, K. and Chol Effect of Non-Rubber Components on Properties of Sulphur Crosslinked Natural Rubbers 2014 Advanced Materials Research
Vol. 844, pp. 345-348 
article DOI  
Abstract: Non-rubber components (mainly proteins and lipids) in natural rubber (NR) play important roles for controlling the properties of NR. Crosslinking process creates intermolecular chemical bonds in order to obtain a three-dimensional network, resulting in more elastic rubber. Sulphur crosslinking is the most popular method and is applied in the present study. Two types of NR were prepared, namely, whole natural rubber (WNR) and purified natural rubber (PNR). PNR was deproteinized by centrifugation method and then acetone extraction. These rubbers were crosslinked by an efficient vulcanization (EV) system. They were cured for three curing times (1xt90, 2xt90, 3xt90) at 150°C. WNR presents shorter curing time than PNR because there are some phospholipids and proteins which are natural accelerators for curing reaction. The presence of non-rubber components seems to play a major role on crosslinking density and adhesion phenomenon for rubber/glass system. AFM images of WNR show more heterogeneity and roughness compared to PNR.
BibTeX:
@article{SMITTHIPONG2014,
  author = {SMITTHIPONG, W. and Tantaherdtam, R. and rungsanthien, K. and Suwanruji, P. and sriroth, K. and Radabutra, S. and Thanawan, S. and VALLAT, M-F. and Nardin, M. and Mougin K. and Chol},
  title = {Effect of Non-Rubber Components on Properties of Sulphur Crosslinked Natural Rubbers},
  journal = {Advanced Materials Research},
  year = {2014},
  volume = {844},
  pages = {345-348},
  doi = {http://doi.org/10.428/www.scientific.net/AMR.844.345}
}
Soltermann, D., Fernandes, M.M., Baeyens, B., Miehe-Brendle, J. and Dahn, R. Competitive Fe(II)-Zn(II) Uptake on a Synthetic Montmorillonite 2014 Environmental Science & Technology
Vol. 48(1), pp. 190-198 
article DOI  
Abstract: The interaction of Fe(II) with clay minerals is of particular relevance in global geochemical processes controlling metal and nutrient cycles and the fate of contaminants. In this context, the influence of competitive sorption effects between Fe(II) and other relevant transition metals on their uptake characteristics and mobility remains an important issue. Macroscopic sorption experiments combined with surface complexation modeling and extended X-ray absorption fine structure (EXAFS) spectroscopy were applied to elucidate competitive sorption processes between divalent Fe and Zn at the clay mineral water interface. Sorption isotherms were measured on a synthetic iron-free montmorillonite (IFM) under anoxic conditions (O-2 < 0.1 ppm) for the combinations of Zn(II)/Fe(II) and Fe(II)/Zn(II), where the. former metal in each pair represents the trace metal (<10(-7) M) and the latter the competing metal at higher concentrations (10(-7) to 10(-3) M). Results of the batch sorption and EXAFS measurements indicated that Fe(II) is competing with trace Zn(II) for the same type of strong sites if Fe(II) is present in excess, whereas no competition between trace Fe(II) and Zn(II) was observed if Zn(II) is present at high concentrations. The noncompetitive behavior suggests the existence of sorption sites which have a higher affinity for Fe(III), where surface-induced oxidation of the sorbed Fe(II) to Fe(III) occurred, and which are not accessible for Zn(II). The understanding of this competitive uptake mechanism between Fe(II) and Zn(II) is of great importance to assess the bioavailability and mobility of transition metals in the natural environment.
BibTeX:
@article{Soltermann2014,
  author = {Soltermann, D. and Fernandes, M. M. and Baeyens, B. and Miehe-Brendle, J. and Dahn, R.},
  title = {Competitive Fe(II)-Zn(II) Uptake on a Synthetic Montmorillonite},
  journal = {Environmental Science & Technology},
  year = {2014},
  volume = {48},
  number = {1},
  pages = {190--198},
  doi = {http://doi.org/10.1021/es402783r}
}
Spitzer, D., Bonnot, K., Schlur, L., Piazzon, N., Doblas, D., Ivanov, D., Cottineau, T. and Keller, V. Bio-inspired Explosive Sensors and Specific Signatures 2014 Procedia Engineering
Vol. 87(0)EUROSENSORS 2014, the 28th European Conference on Solid-State Transducers, pp. 740-746 
article URL 
Abstract: Abstract The low vapor pressure of explosives makes the gaseous detection challenging and drives even the particle detection. There is a need to provide easy portable systems, highly spreadable. A bio-inspired concept was developed to detect explosive vapors with unprecedent sensitivities. Vertically aligned TiO2 nanotubes were grown on a cantilever. The sensors successfully detected trinitrotoluene (TNT) and pentaerythritol tetranitrate (PETN) with a minimum threshold concentration down to 0.8 ppt. This work describes also the investigations undertaken to develop the characterization of explosives by nanocalorimetry, which is able to identify explosives in form of single particles.
BibTeX:
@article{Spitzer2014,
  author = {Spitzer, Denis and Bonnot, Karine and Schlur, Laurent and Piazzon, Nelly and Doblas, David and Ivanov, Dimitri and Cottineau, Thomas and Keller, Valérie},
  title = {Bio-inspired Explosive Sensors and Specific Signatures},
  booktitle = {EUROSENSORS 2014, the 28th European Conference on Solid-State Transducers},
  journal = {Procedia Engineering},
  year = {2014},
  volume = {87},
  number = {0},
  pages = {740--746},
  url = {http://www.sciencedirect.com/science/article/pii/S1877705814027581}
}
Stehlin, F., Wieder, F., Spangenberg, A., Le Meins, J.M. and Soppera, O. Room-temperature preparation of metal-oxide nanostructures by DUV lithography from metal-oxo clusters 2014 Journal of Materials Chemistry C
Vol. 2(2), pp. 277-285 
article DOI  
Abstract: A versatile, fast and easy route towards preparation of metal-oxide nanostructures by a full-optical method at room temperature is presented here. The concept relies on the preparation of photosensitive metal-oxo clusters (MOCs) that can be crosslinked and mineralized in a single step process, by Deep-UV (DUV) irradiation (ArF laser emission band at 193 nm). The oxo-clusters are prepared by complexation between metal alkoxides and methacrylic acids followed by a partial hydrolysis. These molecular building blocks are designed to absorb DUV light and they can react from an excited state to give rise to crosslinking reactions. Photocrosslinking of Ti, Zr and Hf oxo-clusters was investigated by means of in situ FTIR and spectroscopic ellipsometry. In the case of Ti-oxo clusters, we demonstrate that the material can be fully mineralized into TiO2 by DUV irradiation. A photocatalytic process involving TiO2 nanoparticles is proposed to explain the DUV mineralization process. Finally, we used DUV interferometric lithography to illustrate nanopatterning based on these photoresists. These inorganic photoresists open new doors towards room temperature preparation of high-resolution inorganic nanostructures with strong interest for practical applications in electronics, optics, photonics or biology.
BibTeX:
@article{Stehlin2014,
  author = {Stehlin, F. and Wieder, F. and Spangenberg, A. and Le Meins, J. M. and Soppera, O.},
  title = {Room-temperature preparation of metal-oxide nanostructures by DUV lithography from metal-oxo clusters},
  journal = {Journal of Materials Chemistry C},
  year = {2014},
  volume = {2},
  number = {2},
  pages = {277--285},
  doi = {http://doi.org/10.1039/c3tc31326c}
}
Stephan, R., Hanf, M.C., Wetzel, P., Dulot, F. and Sonnet, P. DFT characterization of nanostructured germanium surfaces induced by cobalt atoms 2014 Surface and Interface Analysis
Vol. 46(2), pp. 92-97 
article DOI  
Abstract: By deposition in ultra-high vacuum of cobalt on a Ge(111)-c(2x8) surface, Mocking et al. obtained a root 13 x root 13 - R13.9 degrees surface reconstruction. In the present paper, we analyse the related atomic structure, proposed by these authors, by means of density functional theory calculations. The surface presents ordered clusters that consist of six Ge atoms arranged in a triangle, lying above three Co atoms. The latter are located at substitutional positions within the top plane of the Ge(111) first bilayer. These clusters are similar to what is obtained on part of the Co-induced Si(111) root 13 x root 13 - R13.9 degrees surface. For this surface, the clusters are terminated either by six Si atoms or by one, two or three adatoms above the six Si atoms. As the Co-Ge clusters systematically display six protrusions in the scanning tunnelling microscopy measurements by Mocking et al., we investigated why Ge adatoms are not present. Comparison of the Gibbs energy, interatomic distances, as well as charge density indicates that Ge adatoms on top of Co-Ge clusters are less stable than Si adatoms in the Co-Si system. Copyright (c) 2013 John Wiley & Sons, Ltd.
BibTeX:
@article{Stephan2014,
  author = {Stephan, R. and Hanf, M. C. and Wetzel, P. and Dulot, F. and Sonnet, P.},
  title = {DFT characterization of nanostructured germanium surfaces induced by cobalt atoms},
  journal = {Surface and Interface Analysis},
  year = {2014},
  volume = {46},
  number = {2},
  pages = {92--97},
  doi = {http://doi.org/10.1002/sia.5354}
}
Sun, S., Ghimbeu Camelia Matei, C.C., Janot, R., Le Meins, J.-M., Cassel, A., Davoisne, C., Masquelier, C. and Vix-Guterl, C. One-pot synthesis of LiFePO4-carbon mesoporous composites for Li-ion batteries 2014 Microporous and Mesoporous Materials
Vol. 198(0), pp. 175-184 
article URL 
Abstract: Abstract The synthesis of LiFePO4-carbon mesoporous composites by a one-pot soft-template approach is reported along with their performances as positive electrodes for Li-ion batteries. The synthesis is based on the multi-constituent co-assembly of triblock copolymer, resol and (Li, Fe, P) precursors followed by thermal treatment to in-situ generate the carbon matrix with embedded LiFePO4 particles. The effects of the Fe/Li precursor type and the thermal annealing temperature on the phase formation, mesostructural regularity, porosity and Fe oxidation state were systematically investigated by a large panel of analysis techniques. This new synthesis method allowed the successful synthesis of mesoporous LiFePO4-carbon composites with high surface area, defined pore size and small homogenously distributed LiFePO4 particles (20-50 nm). These composites can be used as electrodes without extra carbon black additive and demonstrate high rate capability (up to 10 C) with a significant capacity contribution from carbon.
BibTeX:
@article{Sun2014a,
  author = {Sun, Shijiao and Ghimbeu, Camelia Matei, Camelia, Camelia and Janot, Raphaël and Le Meins, Jean-Marc and Cassel, Alice and Davoisne, Carine and Masquelier, Christian and Vix-Guterl, Cathie},
  title = {One-pot synthesis of LiFePO4-carbon mesoporous composites for Li-ion batteries},
  journal = {Microporous and Mesoporous Materials},
  year = {2014},
  volume = {198},
  number = {0},
  pages = {175--184},
  url = {http://www.sciencedirect.com/science/article/pii/S1387181114003977}
}
Tehfe, M.-A., Dumur, F., Xiao, P., Delgove, M., Graff, B., Fouassier, J.-P., Gigmes, D. and Lalevee, J. Chalcone derivatives as highly versatile photoinitiators for radical, cationic, thiol-ene and IPN polymerization reactions upon exposure to visible light 2014 Polym. Chem.
Vol. 5, pp. 382-390 
article URL 
Abstract: Chalcone derivatives are proposed as novel photoinitiators for polymerization upon exposure to visible light (even under soft irradiation conditions: blue LED bulb at 462 nm, halogen lamp, and sunlight). Remarkably, these structures are highly versatile allowing access to photoinitiating systems for (i) the free radical polymerization of acrylates, (ii) the cationic polymerization of epoxides and vinyl ethers, (iii) the synthesis of interpenetrated polymer networks (IPNs) and (iv) the thiol-ene processes. Excellent polymerization profiles are obtained. The initiation mechanisms are analyzed through ESR, steady state photolysis, cyclic voltammetry, laser flash photolysis and fluorescence experiments.
BibTeX:
@article{Tehfe2014,
  author = {Tehfe, Mohamad-Ali and Dumur, Frederic and Xiao, Pu and Delgove, Marie and Graff, Bernadette and Fouassier, Jean-Pierre and Gigmes, Didier and Lalevee, Jacques},
  title = {Chalcone derivatives as highly versatile photoinitiators for radical, cationic, thiol-ene and IPN polymerization reactions upon exposure to visible light},
  journal = {Polym. Chem.},
  publisher = {The Royal Society of Chemistry},
  year = {2014},
  volume = {5},
  pages = {382-390},
  url = {http://dx.doi.org/10.1039/C3PY00922J}
}
Tehfe, M.A., Dumur, F., Xiao, P., Zhang, J., Graff, B., Morlet-Savary, F., Gigmes, D., Fouassier, J.P. and Lalevee, J. Photoinitiators based on a phenazine scaffold: High performance systems upon near-UV or visible LED (385, 395 and 405 nm) irradiations 2014 Polymer
Vol. 55(10), pp. 2285-2293 
article DOI  
Abstract: Novel photoinitiators based on a phenazine scaffold are proposed for the ring opening polymerization of epoxy monomers as well as the free radical polymerization of (meth)acrylates. Good to excellent polymerization profiles can be obtained upon different easily accessible, energy saving and cheap LEDs (385, 395 and 405 nm) as well as a diode laser at 405 nm or halogen lamp opening new fields for polymer synthesis upon soft and convenient irradiations. These compounds can be particularly attractive as high performance photoinitiators in the 350-425 nm range. The initiation mechanisms are investigated in detail through fluorescence, cyclic voltammetry, steady state photolysis and electron spin resonance (ESR) experiments. (C) 2014 Elsevier Ltd. All rights resented.
BibTeX:
@article{Tehfe2014a,
  author = {Tehfe, M. A. and Dumur, F. and Xiao, P. and Zhang, J. and Graff, B. and Morlet-Savary, F. and Gigmes, D. and Fouassier, J. P. and Lalevee, J.},
  title = {Photoinitiators based on a phenazine scaffold: High performance systems upon near-UV or visible LED (385, 395 and 405 nm) irradiations},
  journal = {Polymer},
  year = {2014},
  volume = {55},
  number = {10},
  pages = {2285--2293},
  doi = {http://doi.org/10.1016/j.polymer.2014.04.005}
}
Tehfe, M.A., Schweizer, S., Chany, A.C., Ysacco, C., Clement, J.L., Gigmes, D., Morlet-Savary, F., Fouassier, J.P., Neuburger, M., Tschamber, T., Blanchard, N. and Lalevee, J. On the Synthesis, Characterization and Reactivity of N-Heteroaryl-Boryl Radicals, a New Radical Class Based on Five-Membered Ring Ligands 2014 Chemistry-a European Journal
Vol. 20(17), pp. 5054-5063 
article DOI  
Abstract: The synthesis and physical characterization of a new class of N-heterocycle-boryl radicals is presented, based on five membered ring ligands with a N(sp(2)) complexation site. These pyrazole-boranes and pyrazaboles exhibit a low bond dissociation energy (BDE; BH) and accordingly excellent hydrogen transfer properties. Most importantly, a high modulation of the BDE(BH) by the fine tuning of the N-heterocyclic ligand was obtained in this series and could be correlated with the spin density on the boron atom of the corresponding radical. The reactivity of the latter for small molecule chemistry has been studied through the determination of several reaction rate constants corresponding to addition to alkenes and alkynes, addition to O-2, oxidation by iodonium salts and halogen abstraction from alkyl halides. Two selected applications of N-heterocycle-boryl radicals are also proposed herein, for radical polymerization and for radical dehalogenation reactions.
BibTeX:
@article{Tehfe2014b,
  author = {Tehfe, M. A. and Schweizer, S. and Chany, A. C. and Ysacco, C. and Clement, J. L. and Gigmes, D. and Morlet-Savary, F. and Fouassier, J. P. and Neuburger, M. and Tschamber, T. and Blanchard, N. and Lalevee, J.},
  title = {On the Synthesis, Characterization and Reactivity of N-Heteroaryl-Boryl Radicals, a New Radical Class Based on Five-Membered Ring Ligands},
  journal = {Chemistry-a European Journal},
  year = {2014},
  volume = {20},
  number = {17},
  pages = {5054--5063},
  doi = {http://doi.org/10.1002/chem.201400197}
}
Telitel, S., Amamoto, Y., Poly, J., Morlet-Savary, F., Soppera, O., Lalevee, J. and Matyjaszewski, K. Introduction of self-healing properties into covalent polymer networks via the photodissociation of alkoxyamine junctions 2014 Polym. Chem.
Vol. 5, pp. 921-930 
article URL 
Abstract: Poly(n-butyl acrylate) networks were prepared by conducting click chemistry between dialkyne alkoxyamines and azide functionalized star-like oligomers synthesized by ATRP. The dissociation of alkoxyamines under UV irradiation was exploited to cleave the junctions between the network of star-like precursors. The efficiency of the cleavage, generating dangling nitroxides and increased mobility of poly(n-butyl acrylate) segments, was examined by ESR monitoring. The network progressively reformed after irradiation via the recombination of radical species. These reactions resulted in self-healing behavior, which was observed by AFM.
BibTeX:
@article{Telitel2014,
  author = {Telitel, Siham and Amamoto, Yoshifumi and Poly, Julien and Morlet-Savary, Fabrice and Soppera, Olivier and Lalevee, Jacques and Matyjaszewski, Krzysztof},
  title = {Introduction of self-healing properties into covalent polymer networks via the photodissociation of alkoxyamine junctions},
  journal = {Polym. Chem.},
  publisher = {The Royal Society of Chemistry},
  year = {2014},
  volume = {5},
  pages = {921-930},
  url = {http://dx.doi.org/10.1039/C3PY01162C}
}
Telitel, S., Dumur, F., Kavalli, T., Graff, B., Morlet-Savary, F., Gigmes, D., Fouassier, J.P. and Lalevee, J. The 1,3-bis(dicyanomethylidene) indane skeleton as a (photo) initiator in thermal ring opening polymerization at RT and radical or cationic photopolymerization 2014 Rsc Advances
Vol. 4(31), pp. 15930-15936 
article DOI  
Abstract: 1,3-Bis(dicyanomethylidene) indane is presented as a new initiator for ring opening polymerization of epoxides at RT. This compound behaves as a strong acid (AH) with an associated basic form (A(-)) that does not inhibit the propagation of the cationic polymerization. Remarkably, A(-) is characterized by a strong visible light absorption and can also photosensitize iodonium salt decomposition. A new iodonium salt based on A(-)as a counter-anion is proposed. This latter compound exhibits unusual properties: (i) excellent absorption in the 300-700 nm wavelength range and (ii) a free radical initiating ability for lambda > 300 nm. The chemical mechanisms are investigated by ESR, fluorescence and steady state photolysis experiments.
BibTeX:
@article{Telitel2014a,
  author = {Telitel, S. and Dumur, F. and Kavalli, T. and Graff, B. and Morlet-Savary, F. and Gigmes, D. and Fouassier, J. P. and Lalevee, J.},
  title = {The 1,3-bis(dicyanomethylidene) indane skeleton as a (photo) initiator in thermal ring opening polymerization at RT and radical or cationic photopolymerization},
  journal = {Rsc Advances},
  year = {2014},
  volume = {4},
  number = {31},
  pages = {15930--15936},
  doi = {http://doi.org/10.1039/c3ra42819b}
}
Telitel, S., Ouhib, F., Fouassier, J.P., Jerome, C., Detrembleur, C. and Lalevee, J. Thiophene Derivatives with Donor-pi-Acceptor Structures for Enhanced Light-Absorption Properties and Efficient Cationic Polymerization upon Green-Light Irradiation 2014 Macromolecular Chemistry and Physics
Vol. 215(16), pp. 1514-1524 
article DOI  
Abstract: New thiophene derivatives (THs) are prepared and proposed here as new photoinitiators in combination with an iodonium salt for the cationic polymerization of vinylethers. They contain electron donor and electron acceptor (D-A) moieties and exhibit red-shifted absorption spectra. They allow the use of a long-wavelength excitation at 532 nm using a laser diode. Irradiation from a green light-emitting diode (LED) at 514 nm can also be used. The high reactivity upon irradiation from the low-intensity green LED highlights the high reactivity of the proposed structures. Interesting polymerization profiles (with conversions up to 70%) are obtained. The initiation step mechanisms are analyzed by electron spin resonance (ESR), fluorescence measurements, steady-state photolysis, and laser flash photolysis experiments.
BibTeX:
@article{Telitel2014c,
  author = {Telitel, S. and Ouhib, F. and Fouassier, J. P. and Jerome, C. and Detrembleur, C. and Lalevee, J.},
  title = {Thiophene Derivatives with Donor-pi-Acceptor Structures for Enhanced Light-Absorption Properties and Efficient Cationic Polymerization upon Green-Light Irradiation},
  journal = {Macromolecular Chemistry and Physics},
  year = {2014},
  volume = {215},
  number = {16},
  pages = {1514--1524},
  doi = {http://doi.org/10.1002/macp.201400148}
}
Thebault, M., Pizzi, A., Dumarcay, S., Gerardin, P., Fredon, E. and Delmotte, L. Polyurethanes from hydrolysable tannins obtained without using isocyanates 2014 Industrial Crops and Products
Vol. 59, pp. 329-336 
article DOI  
BibTeX:
@article{Thebault2014,
  author = {Thebault, M. and Pizzi, A. and Dumarcay, S. and Gerardin, P. and Fredon, E. and Delmotte, L.},
  title = {Polyurethanes from hydrolysable tannins obtained without using isocyanates},
  journal = {Industrial Crops and Products},
  year = {2014},
  volume = {59},
  pages = {329--336},
  doi = {http://doi.org/10.1016/j.indcrop.2014.05.036}
}
Tzanis, L., Nouali, H., Daou, J., Soulard, M. and Patarin, J. Influence of the aqueous medium on the energetic performances of Silicalite-1 2014 Materials Letters
Vol. 115, pp. 229-232 
article DOI  
Abstract: The energetic performance of different "Silicalite-1 - aqueous medium" systems was evaluated under high pressure. Depending on the nature of the aqueous medium, high intrusion and extrusion pressures and therefore stored and restored energies are observed. Thus, compared to the "Silicalite-1 - water" system, the stored energy is tripled in the case of "Silicalite-1 - LiCl, 3H(2)O" system. (C) 2013 Elsevier B.V. All rights reserved.
BibTeX:
@article{Tzanis2014,
  author = {Tzanis, L. and Nouali, H. and Daou, J. and Soulard, M. and Patarin, J.},
  title = {Influence of the aqueous medium on the energetic performances of Silicalite-1},
  journal = {Materials Letters},
  year = {2014},
  volume = {115},
  pages = {229--232},
  doi = {http://doi.org/10.1016/j.matlet.2013.10.063}
}
Vallat, M.F., Radabutra, S., Thanawan, S., Bresson, B., Chollakup, R., Rungsanthie, K., Suwanruji, P., Sriroth, K., Smitthipong, W. and Mougin, K. Influence of non-rubber components on NR surface modification by chlorination 2014 Advanced Materials R
Vol. 844, pp. 369-372 
article DOI  
Abstract: Natural rubber (NR) is a very useful elastomer and renewable polymer with outstanding properties compared to synthetic elastomers. However, as a natural polymer, the non-rubber species (proteins, phospholipids, carbohydrate, etc.) have to be considered carefully for the understanding of the surface and interfacial properties. Especially these components can markedly affect the frictional and adhesive properties of the rubber surface. Although many methods can be used to modify the surface properties, chlorination remains one of the easiest way. The present study deals with surface modification of peroxide crosslinked NRs and synthetic cis-1,4 polysioprene as reference samples by chlorination. Surface and frictional properties of these different rubbers were analyzed by various complementary techniques The influence of critical parameters on wetting, frictional and mechanical properties were investigated and will be discussed
BibTeX:
@article{Vallat2014,
  author = {Vallat, M. F. and Radabutra, S. and Thanawan, S. and Bresson, B. and Chollakup, R. and Rungsanthie, K. and Suwanruji, P. and Sriroth, K. and Smitthipong, W. and Mougin K.},
  title = {Influence of non-rubber components on NR surface modification by chlorination},
  journal = {Advanced Materials R},
  year = {2014},
  volume = {844},
  pages = {369-372},
  doi = {http://doi.org/10.4028/www.scientific.net/AMR.844.369}
}
Vautard, F., Fioux, P., Vidal, L., Siffer, F., Roucoules, V., Schultz, J., Nardin, M. and Defoort, B. Use of Plasma Polymerization to Improve Adhesion Strength in Carbon Fiber Composites Cured by Electron Beam 2014 ACS Appl. Mater. Interfaces
Vol. 6(3)ACS Applied Materials & Interfaces, pp. 1662-1674 
article DOI URL 
Abstract: Maleic anhydride plasma polymer was deposited at the surface of carbon fibers and functionalized with vinyl and thiol groups to improve its adhesion strength with an acrylate matrix cured by an electron beam. A characterization of the fiber surface properties was done before and after coating (topography, surface chemistry, and surface energy). Sharp improvements of the interfacial shear strength (+ 120%), measured by a micromechanical test derived from the pull-out test, were obtained and, to the best of our knowledge, never reported before. The values were close to the ones obtained with a thermal cure. The comparison of this approach with other types of surface treatments (oxidation, grafting of coupling agents) enabled the establishment of a general strategy for the improvement of the interfacial adhesion in carbon fiber composites cured by an electron beam and potentially the improvement of their mechanical properties. This strategy is based on a high surface density of functionalities that are generating covalent bonding during the polymerization of the matrix and on the insertion of a polymer layer strongly attached to the fiber surface and acting as a buffer between the fiber surface and the matrix to counteract the generation of stress in the interphase. Maleic anhydride plasma polymer was deposited at the surface of carbon fibers and functionalized with vinyl and thiol groups to improve its adhesion strength with an acrylate matrix cured by an electron beam. A characterization of the fiber surface properties was done before and after coating (topography, surface chemistry, and surface energy). Sharp improvements of the interfacial shear strength (+ 120%), measured by a micromechanical test derived from the pull-out test, were obtained and, to the best of our knowledge, never reported before. The values were close to the ones obtained with a thermal cure. The comparison of this approach with other types of surface treatments (oxidation, grafting of coupling agents) enabled the establishment of a general strategy for the improvement of the interfacial adhesion in carbon fiber composites cured by an electron beam and potentially the improvement of their mechanical properties. This strategy is based on a high surface density of functionalities that are generating covalent bonding during the polymerization of the matrix and on the insertion of a polymer layer strongly attached to the fiber surface and acting as a buffer between the fiber surface and the matrix to counteract the generation of stress in the interphase.
BibTeX:
@article{Vautard2014,
  author = {Vautard, Frédéric and Fioux, Philippe and Vidal, Loı̈c and Siffer, Frédéric and Roucoules, Vincent and Schultz, Jacques and Nardin, Michel and Defoort, Brigitte},
  title = {Use of Plasma Polymerization to Improve Adhesion Strength in Carbon Fiber Composites Cured by Electron Beam},
  booktitle = {ACS Applied Materials & Interfaces},
  journal = {ACS Appl. Mater. Interfaces},
  publisher = {American Chemical Society},
  year = {2014},
  volume = {6},
  number = {3},
  pages = {1662--1674},
  url = {http://dx.doi.org/10.1021/am4045663},
  doi = {http://doi.org/10.1021/am4045663}
}
Vautard, F., DENTZER, J., NARDIN, M., SCHULTZ, J. and Defoort, B. Influence of surface defects on the tensile Strength of carbon fibers 2014 Applied surface science
Vol. 322, pp. 185-193 
article DOI  
Abstract: tThe mechanical properties of carbon fibers, especially their tensile properties, are affected by internaland surface defects. In order to asses in what extent the generation of surface defects can result in aloss of the mechanical properties, non-surface treated carbon fibers were oxidized with three differentsurface treatment processes: electro-chemical oxidation, oxidation in nitric acid, and oxidation in oxy-gen plasma. Different surface topographies and surface chemistries were obtained, as well as differenttypes and densities of surface defects. The density of surface defects was measured with both a physicalapproach (Raman spectroscopy) and a chemical approach (Active Surface Area). The tensile propertieswere evaluated by determining the Weibull modulus and the scale parameter of each reference, aftermeasuring the tensile strength for four different gauge lengths. A relationship between the tensile prop-erties and the nature and density of surface defects was noticed, as large defects largely control the valueof the tensile strength. When optimized, some oxidation surface treatment processes can generate sur-face functional groups as well as an increase of the mechanical properties of the fibers, because of theremoval of the contamination layer of pyrolytic carbon generated during the carbonization of the poly-acrylonitrile precursor. Oxidation in oxygen plasma revealed to be a promising technology for alternativesurface treatment processes, as high levels of functionalization were achieved and a slight improvementof the mechanical properties was obtained too.
BibTeX:
@article{Vautard2014a,
  author = {Vautard, F. and DENTZER, J. and NARDIN, M. and SCHULTZ, J. and Defoort, B.},
  title = {Influence of surface defects on the tensile Strength of carbon fibers},
  journal = {Applied surface science},
  year = {2014},
  volume = {322},
  pages = {185-193},
  doi = {http://doi.org/10.1016/j.apsusc.2014.10.066}
}
Versace, D.L., Fouassier, J.P. and Lalevee, J. The First Photochemical In Situ Production of Ti-Based Nanoparticles: A S H 2 Strategy Using Bis( cyclopentadienyl) titanium Dichloride ( Cp 2 TiCl 2) 2014 Macromolecular Rapid Communications
Vol. 35(8), pp. 821-826 
article DOI  
Abstract: Bis(cyclopentadienyl)titanium dichloride (Cp2TiCl2) is a high performance additive under UV light activation for both i) radical photopolymerization reactions (when added to a Type I photoinitiator such as 2,2-dimethoxy-2-phenylacetophenone, the oxygen inhibition is reduced) and ii) a concomitant in situ photoinduced and oxygen mediated formation of Ti-based nanoparticles (diameters ranging from 45 to 220 nm). The photochemical properties of Cp2TiCl2 are investigated by steady state photolysis and electron spin resonance, and its photoinitiation ability checked. The nanoparticles (NPs) are well characterized by transmission electron microscopy. The high reactivity of Cp2TiCl2 under air is ascribed to a bimolecular homolytic substitution (the S(H)2 process is clearly demonstrated by density functional theory calculations and ESR experiments), which converts the peroxyls into new efficient initiating radicals. The photochemical in situ incorporation of Ti NPs has never previously been reported. The synthesis of metal nanoparticles by a S(H)2 approach instead of the reduction of a metal salt appears to be a promising original method. image
BibTeX:
@article{Versace2014,
  author = {Versace, D. L. and Fouassier, J. P. and Lalevee, J.},
  title = {The First Photochemical In Situ Production of Ti-Based Nanoparticles: A S H 2 Strategy Using Bis( cyclopentadienyl) titanium Dichloride ( Cp 2 TiCl 2)},
  journal = {Macromolecular Rapid Communications},
  year = {2014},
  volume = {35},
  number = {8},
  pages = {821--826},
  doi = {http://doi.org/10.1002/marc.201300924}
}
Versace, D., Bourgon, J., Leroy, E., Dumur, F., Gigmes, D., Fouassier, J.P. and Lalevee, J. Zinc complex based photoinitiating systems for acrylate polymerization under air; insitu formation of Zn-basedfillers and composites 2014 Polym. Chem
Vol. 5, pp. 6569-6576 
article DOI  
BibTeX:
@article{Versace2014a,
  author = {Versace, D. and Bourgon, J. and Leroy, E. and Dumur, F. and Gigmes, D. and Fouassier J.P. and Lalevee, J.},
  title = {Zinc complex based photoinitiating systems for acrylate polymerization under air; insitu formation of Zn-basedfillers and composites},
  journal = {Polym. Chem},
  year = {2014},
  volume = {5},
  pages = {6569-6576},
  doi = {DOI: 10.1039/c4py00716f}
}
Vonau, F., Shokri, R., Aubel, D., Bouteiller, L., Guskova, O., Sommer, J.-U., Reiter, G. and Simon, L. Tunneling spectroscopy measurements on hydrogen-bonded supramolecular polymers 2014 Nanoscale
Vol. 6, pp. 8250-8256 
article DOI URL 
Abstract: We studied the formation of hydrogen-bonded supramolecular polymers of Ethyl Hexyl Urea Toluene (EHUT) on a gold (111) surface by low temperature scanning tunneling microscopy. Tunneling spectroscopy performed along an individual molecule embedded in a self-assembled layer revealed strong changes in the value of the HOMO-LUMO gap. A variation of the LUMO state is attributed to the effect of space charge accumulation resulting from anisotropic adhesion of the molecule. In addition, for specific tunneling conditions, changes induced through the formation of hydrogen bonds became visible in the differential conductance (dI/dV) maps; isolated molecules, hydrogen bonded dimers and supramolecular polymers of EHUT were distinguishable through their electronic properties.
BibTeX:
@article{Vonau2014,
  author = {Vonau, Francois and Shokri, Roozbeh and Aubel, Dominique and Bouteiller, Laurent and Guskova, Olga and Sommer, Jens-Uwe and Reiter, Gunter and Simon, Laurent},
  title = {Tunneling spectroscopy measurements on hydrogen-bonded supramolecular polymers},
  journal = {Nanoscale},
  publisher = {The Royal Society of Chemistry},
  year = {2014},
  volume = {6},
  pages = {8250-8256},
  url = {http://dx.doi.org/10.1039/C4NR00539B},
  doi = {http://doi.org/10.1039/C4NR00539B}
}
Wu, L., Xue, M., Chaplais, G., Zhu, G., Qiu, S., Simon-Masseron, A... and Patarin, J. Solvothermal Synthesis, Structure, Fluorescence and Magnetism Properties of a Novel 3D Metal-Organic Framework Based on Tetranuclear Copper Secondary Building Units 2014 Advanced materials research
Vol. 834-836, pp. 543-549 
article DOI  
Abstract: A novel 3D metal-organic framework based on tetranuclear copper Secondary Building Units, [Cu2(μ3-OH)(4-oip)(DMF)]·DMF·2H2O (JUC-76) (4-oip = 4-hydroxyisophthalic, DMF = N,N-dimethylformamide, and JUC = Jilin University China), has been synthesized under solvothermal conditions. It crystallizes in monoclinic symmetry with space group P21/n. JUC-76 possesses a three-dimensional network with one-dimensional rhombic channels of approximately 13.6 × 8.5 Å2 along the [100] direction. The resulting structure of JUC-76 is a distorted rutile topology with one 3-connected organic node and one 6-connected inorganic node. And its Schläfli symbol is (4·62)2(42·610·83). In addition, JUC-76 exhibits fluorescence emission at 446 nm, and a dominant anti-ferromagnetic interaction between the Cu (II) ions.
BibTeX:
@article{Wu2014,
  author = {Wu, L and Xue, M and Chaplais, G and Zhu,G.S and Qiu,S.L and Simon-Masseron, A . and Patarin, J},
  title = {Solvothermal Synthesis, Structure, Fluorescence and Magnetism Properties of a Novel 3D Metal-Organic Framework Based on Tetranuclear Copper Secondary Building Units},
  journal = {Advanced materials research},
  year = {2014},
  volume = {834-836},
  pages = {543-549},
  doi = {http://doi.org/10.4028/www.scientific.net/AMR.834-836.543}
}
Wu, D.L., Tschamber, V., Limousy, L., Michelin, L., Westermann, A., Azambre, B., Fechete, I. and Garin, F. Combined Fixed-Bed Reactor and In Situ DRIFTS Tests of NO Adsorption on a NOx Storage-Reduction System Catalyst 2014 Chemical Engineering & Technology
Vol. 37(2), pp. 204-212 
article  
BibTeX:
@article{Wu2014b,
  author = {Wu, D. L. and Tschamber, V. and Limousy, L. and Michelin, L. and Westermann, A. and Azambre, B. and Fechete, I. and Garin, F.},
  title = {Combined Fixed-Bed Reactor and In Situ DRIFTS Tests of NO Adsorption on a NOx Storage-Reduction System Catalyst},
  journal = {Chemical Engineering & Technology},
  year = {2014},
  volume = {37},
  number = {2},
  pages = {204--212}
}
Wu, D.L.L., Tschamber, V., Limousy, L., Klein, J., Westermann, A., Azambre, B., Fechete, I. and Garin, F. Simultaneous effect of carbon and water on NOx adsorption on a stabilized Pt-Ba/Al2O3 catalyst 2014 Comptes Rendus Chimie
Vol. 17(7-8), pp. 687-700 
article DOI  
BibTeX:
@article{Wu2014c,
  author = {Wu, D. L. L. and Tschamber, V. and Limousy, L. and Klein, J. and Westermann, A. and Azambre, B. and Fechete, I. and Garin, F.},
  title = {Simultaneous effect of carbon and water on NOx adsorption on a stabilized Pt-Ba/Al2O3 catalyst},
  journal = {Comptes Rendus Chimie},
  year = {2014},
  volume = {17},
  number = {7-8},
  pages = {687--700},
  doi = {http://doi.org/10.1016/j.crci.2014.04.010}
}
Xiao, P., Frigoli, M., Dumur, F., Graff, B., Gigmes, D., Fouassier, J.P. and Lalevee, J. Julolidine or Fluorenone Based Push–Pull Dyes for Polymerization upon Soft Polychromatic Visible Light or Green Light. 2014 Macromolecules
Vol. 47, pp. 106-112 
article DOI  
BibTeX:
@article{Xiao2014c,
  author = {Xiao, P. and Frigoli, M. and Dumur, F. and Graff, B. and Gigmes, D. and Fouassier J.P. and Lalevee, J.},
  title = {Julolidine or Fluorenone Based Push–Pull Dyes for Polymerization upon Soft Polychromatic Visible Light or Green Light.},
  journal = {Macromolecules},
  year = {2014},
  volume = {47},
  pages = {106-112},
  doi = {DOI: 10.1021/ma402196p}
}
Xiao, P., hong , W., Li, Y., Dumur, F., Graff, B., Fouassier, J.P., Gigmes, D. and Lalevee, J. Green Light Sensitive Diketopyrrolopyrrole Derivatives used in Versatile Photoinitiating Systems for Photopolymerizations 2014 polym. Chem.
Vol. 5, pp. 2293-2300 
article DOI  
Abstract: The monomeric (DPPDT) and polymeric (PDQT) diketopyrrolopyrrole–thiophene derivatives combined with an iodonium salt or an amine (and optionally an additive) are used as photoinitiating systems to initiate the cationic polymerization of epoxides or divinyl ethers, radical polymerization of acrylates and thiol–ene polymerization under different irradiation sources (i.e. very soft halogen lamp, laser diodes at 473 nm, 532 nm and 808 nm). The DPPDT based systems are very efficient upon the green light exposure. Remarkably, these systems are characterized by a higher efficiency than references based on camphorquinone, a well known photosensitizer for visible light. The photochemical mechanisms are studied by steady state photolysis, fluorescence, cyclic voltammetry, laser flash photolysis and electron spin resonance spin trapping techniques.
BibTeX:
@article{Xiao2014h,
  author = {Xiao, P. and hong, W. and Li, Y and Dumur, F and Graff, B. and Fouassier J.P. and Gigmes, D. and Lalevee, J},
  title = {Green Light Sensitive Diketopyrrolopyrrole Derivatives used in Versatile Photoinitiating Systems for Photopolymerizations},
  journal = {polym. Chem.},
  year = {2014},
  volume = {5},
  pages = {2293-2300},
  doi = {http://doi.org/10.1039/C3PY01599H}
}
Xiao, P., Dumur, F., Zhang, J., Fouassier, J.P., Gigmes, D. and Lalevee, J. Copper Complexes in Radical Photoinitiating Systems: Applications to Free Radical and Cationic Polymerization upon Visible LEDs 2014 Macromolecules
Vol. 47(12), pp. 3837-3844 
article DOI URL 
Abstract: Three copper complexes (E1, G1, and G2) with different ligands in combination with an iodonium salt (and optionally another additive) were used to generate radicals upon soft visible light exposure (e.g., polychromatic visible light from a halogen lamp, laser diodes at 405 and 457 nm, LEDs at 405 and 455 nm). This approach can be worthwhile and versatile to initiate free radical photopolymerization, ring-opening cationic photopolymerization, and the synthesis of interpenetrating polymer networks. The photochemical mechanisms for the production of initiating radicals are studied using cyclic voltammetry, electron spin resonance spin trapping, steady state photolysis, and laser flash photolysis techniques. The photoinitiation ability of the copper complexes based photoinitiating systems are evaluated using real-time Fourier transform infrared spectroscopy. G1 and G2 are better than the well-known camphorquinone (CQ)-based systems (i.e., TMPTA conversion = 18%, 35%, 48%, and 39% with CQ/iodonium salt, CQ/amine, G1/iodonium salt, and G2/iodonium salt, respectively; halogen lamp exposure). Interestingly, some of these systems are also better than the well-known type I phosphine oxide photoinitiator (BAPO) clearly showing their high performance. These copper complexes can be used as highly efficient catalysts in photoredox catalysis.
BibTeX:
@article{Xiao2014j,
  author = {Xiao, Pu and Dumur, Frederic and Zhang, Jing and Fouassier, Jean Pierre and Gigmes, Didier and Lalevee, Jacques},
  title = {Copper Complexes in Radical Photoinitiating Systems: Applications to Free Radical and Cationic Polymerization upon Visible LEDs},
  journal = {Macromolecules},
  year = {2014},
  volume = {47},
  number = {12},
  pages = {3837-3844},
  url = {http://pubs.acs.org/doi/abs/10.1021/ma5006793},
  doi = {http://doi.org/10.1021/ma5006793}
}
Xiao, P., Dumur, F., Graff, B., Morlet-Savary, F., Gigmes, D., Fouassier, J.P. and Lalevee Design of High Performance Photoinitiators at 385–405 nm: Search around the Naphthalene Scaffold 2014 Macromolecules
Vol. 47(3), pp. 973-978 
article DOI  
Abstract: Novel naphthalene derivatives have been designed to be used as versatile photoinitiators upon a laser diode (405 nm), a polychromatic halogen lamp, or an UV LED (385 nm) exposure. The reactive species produced from photoinitiating systems based on one particular naphthalene derivative (NA3) and an iodonium salt, N-vinylcarbazole, an amine or 2,4,6-tris(trichloromethyl)-1,3,5-triazine were particularly efficient for cationic, radical, IPN and thiol–ene photopolymerizations upon low light intensity exposure. The best proposed systems exhibit a higher efficiency than references systems for visible lights (i.e., camphorquinone CQ-based photoinitiating systems). The mechanisms for the photochemical generation of reactive species (i.e., radicals and cations) were studied by electron spin resonance spin-trapping, fluorescence, cyclic voltammetry, laser flash photolysis, and steady state photolysis techniques.
BibTeX:
@article{Xiao2014k,
  author = {Xiao, P. and Dumur, F. and Graff, B. and Morlet-Savary, F and Gigmes, D. and Fouassier J.P. and Lalevee},
  title = {Design of High Performance Photoinitiators at 385–405 nm: Search around the Naphthalene Scaffold},
  journal = {Macromolecules},
  year = {2014},
  volume = {47},
  number = {3},
  pages = {973-978},
  doi = {http://doi.org/10.1021/ma402622v}
}
Xiao, P., Dumur, F., Zhang, J., Gigmes D.and Fouassier, J. and Lalevee, J. Copper Complexes: Effect of Ligands on Their Photoinitiation Efficiencies in Radical Polymerization Reactions under Visible Lights. 2014 Polym. Chem.
Vol. 5, pp. 6350-6357 
article DOI URL 
Abstract: Copper complex (CuC) based photoinitiating systems (PISs) usable under visible lights have emerged as suitable substitutes for the expensive metal complexes e.g. ruthenium or iridium containing compounds. It is expected that the ligands present on the CuCs can significantly affect the photochemical properties (such as light absorption, luminescence lifetimes) or the redox potentials and therefore should play an important role in the photoinitiation efficiency of CuC based PISs. In the present paper, for a better understanding of the effect of ligands on the photoinitiation ability of CuCs, twenty three different copper complexes have been synthesized. The light absorption properties, the photostabilities and the photoreactivities of CuC/iodonium salt (Iod) couples will be specifically investigated. The photoinitiation ability of various PISs (CuC/Iod, CuC/Iod/N-vinylcarbazole, CuC/alkyl bromide/methyl diethanolamine) in the free radical polymerization of acrylates under different visible light irradiations (near UV or visible LEDs at 405 and 455 nm, laser diodes at 405, 457 and 532 nm, halogen lamp) will be checked. It reveals that some of the CuC based PISs even exhibited better efficiency than the well-known reference PISs: bisacylphosphine oxide - BAPO (representative of highly reactive Type I photoinitiators) and camphorquinone - CQ (representative of Type II systems).
BibTeX:
@article{Xiao2014l,
  author = {Xiao, P. and Dumur, F. and Zhang, J. and Gigmes, D.and Fouassier, J.P. and Lalevee, J.},
  title = {Copper Complexes: Effect of Ligands on Their Photoinitiation Efficiencies in Radical Polymerization Reactions under Visible Lights.},
  journal = {Polym. Chem.},
  publisher = {The Royal Society of Chemistry},
  year = {2014},
  volume = {5},
  pages = {6350-6357},
  url = {http://dx.doi.org/10.1039/C4PY00925H},
  doi = {http://doi.org/10.1039/C4PY00925H}
}
Xiao, P., Dumur, F., Graff, B., Morlet-Savary, F., Vidal, L., Gigmes, D., Fouassier, J.P. and Lalevee, J. Structural Effects in the Indanedione Skeleton for the Design of Low Intensity 300-500 nm Light Sensitive Initiators 2014 Macromolecules
Vol. 47(1), pp. 26-34 
article DOI  
Abstract: Newly synthesized indanedione derivatives combined with an iodonium salt, N-vinylcarbazole, amine, phenacyl bromide, or 2,4,6-tris(trichloromethyl)-1,3,5-triazine have been used as photoinitiating systems upon very low visible light intensities: blue lights (e.g., household blue LED bulb at 462 nm) or even a halogen lamp exposure. One of them (ID2) is particularly efficient for cationic, radical and thiolene photopolymerizations as well as for the synthesis of interpenetrated polymer networks (IPNs). It can be useful to overcome the oxygen inhibition. ID2 based photoinitiating systems can also be selected for the reduction of Ag+ and the in situ formation of Ag(0) nanoparticles in the synthesized polymers. The (photo)chemical mechanisms are studied by electron spin resonance spin trapping, fluorescence, cyclic voltammetry, laser flash photolysis, and steady state photolysis techniques.
BibTeX:
@article{Xiao2014m,
  author = {Xiao, P. and Dumur, F. and Graff, B. and Morlet-Savary, F. and Vidal, L. and Gigmes, D. and Fouassier, J. P. and Lalevee, J.},
  title = {Structural Effects in the Indanedione Skeleton for the Design of Low Intensity 300-500 nm Light Sensitive Initiators},
  journal = {Macromolecules},
  year = {2014},
  volume = {47},
  number = {1},
  pages = {26--34},
  doi = {http://doi.org/10.1021/ma402149g}
}
Xiao, P., Hong, W., Li., Y, Dumur, F., Graff, B., Fouassier, J.P., Gigmes, D. and Lalevee Diketopyrrolopyrrole dyes: Structure/reactivity/efficiency relationship in photoinitiating systems upon visible lights 2014 Polymer
Vol. 55, pp. 746-751 
article DOI  
BibTeX:
@article{Xiao2014n,
  author = {Xiao, P. and Hong, W. and Li. Y and Dumur, F. and Graff, B and Fouassier J.P. and Gigmes, D. and Lalevee},
  title = {Diketopyrrolopyrrole dyes: Structure/reactivity/efficiency relationship in photoinitiating systems upon visible lights},
  journal = {Polymer},
  year = {2014},
  volume = {55},
  pages = {746-751},
  doi = {DOI: 10.1016/j.polymer.2014.01.003}
}
Xiao, P., Dumur, F., Frigoli, M., Graff, B., Morlet-Savary, F., Wantz, G., Bock, H., Fouassier, J.P., Gigmes, D. and Lalevee, J. Perylene Derivatives as Photoinitiators in Blue Light Sensitive Cationic or Radical Curable Films and Panchromatic Thiol-ene Polymerizable Films 2014 Eur. Polym. J
Vol. 53, pp. 215-222 
article DOI  
BibTeX:
@article{Xiao2014p,
  author = {Xiao, P. and Dumur, F. and Frigoli, M. and Graff, B. and Morlet-Savary, F and Wantz, G. and Bock, H and Fouassier J.P. and Gigmes, D. and Lalevee, J.},
  title = {Perylene Derivatives as Photoinitiators in Blue Light Sensitive Cationic or Radical Curable Films and Panchromatic Thiol-ene Polymerizable Films},
  journal = {Eur. Polym. J},
  year = {2014},
  volume = {53},
  pages = {215-222},
  doi = {http://doi.org/10.1021/ma402622v}
}
Xiao, P., Dumur, F., Graff, B., Gigmes, D., Fouassier, J.P. and Lalevee, J. Blue Light Sensitive Dyes for Various Photopolymerization Reactions: Naphthalimide and Naphthalic Anhydride Derivatives 2014 Macromolecules
Vol. 47, pp. 601-608 
article DOI  
BibTeX:
@article{Xiao2014q,
  author = {Xiao, P. and Dumur, F. and Graff, B. and Gigmes, D. and Fouassier J.P. and Lalevee, J},
  title = {Blue Light Sensitive Dyes for Various Photopolymerization Reactions: Naphthalimide and Naphthalic Anhydride Derivatives},
  journal = {Macromolecules},
  year = {2014},
  volume = {47},
  pages = {601-608},
  doi = {DOI: 10.1021/ma402376x}
}
Zanouni, M., Ben Azzouz, C., Derivaz, M., Dentel, D., Denys, E., Diani, M., Aouni, A., Morales, F.M., Manuel, J.M., Garcia, R. and Bischoff, J.L. Epitaxial growth of Fe islands on LaAlO3 (001) substrates 2014 Journal of Crystal Growth
Vol. 391, pp. 121-129 
article DOI  
Abstract: Fe deposits were performed on LaAlO3 (001) by molecular beam epitaxy at different substrate temperatures. Chemical and structural characterizations were carried out in-situ, by X-ray photoelectron spectroscopy (XPS), reflection high-energy electron diffraction (RHEED), X-ray photoelectron diffraction (XPD), and ex-situ by high-resolution transmission electron microscopy ( HRTEM). This temperature dependence study indicates that the growth of Fe is epitaxial in a tight temperature window around 500 degrees C with a single epitaxial relationship, where the Fe and LaAlO3(001) lattices are brought into coincidence by a 45 rotation around the common [001] axis. This typical configuration via Fe-O bonds formation at the interface allows a minimization of the elastic strain inside Fe islands which follow a Volmer-Weber growth mode. Beyond a given thickness, and in agreement with the strain relaxation, Fe islands exhibit (001) facets, leading to islands coalescence and a possible iron 2D layer formation. (C) 2014 Elsevier B.V. All rights reserved
BibTeX:
@article{Zanouni2014,
  author = {Zanouni, M. and Ben Azzouz, C. and Derivaz, M. and Dentel, D. and Denys, E. and Diani, M. and Aouni, A. and Morales, F. M. and Manuel, J. M. and Garcia, R. and Bischoff, J. L.},
  title = {Epitaxial growth of Fe islands on LaAlO3 (001) substrates},
  journal = {Journal of Crystal Growth},
  year = {2014},
  volume = {391},
  pages = {121--129},
  doi = {http://doi.org/10.1016/j.jcrysgro.2014.01.001}
}
Zeng, D.L., Tahar-Djebbar, I., Xiao, Y.M., Kameche, F., Kayunkid, N., Brinkmann, M., Guillon, D., Heinrich, B., Donnio, B., Ivanov, D.A., Lacaze, E., Kreher, D., Mathevet, F. and Attias, A.J. Intertwined Lamello-Columnar Coassemblies in Liquid-Crystalline Side-Chain Pi-Conjugated Polymers: Toward a New Class of Nanostructured Supramolecular Organic Semiconductors 2014 Macromolecules
Vol. 47(5), pp. 1715-1731 
article DOI  
Abstract: A set of liquid-crystalline polymeric systems, associating at once the regioregular polythiophene backbone and pending mesogenic triphenylenes, is reported. Two series, namely regular homopolymers and alternating copolymers, were prepared by adapting a Grignard metathesis-based methodology, allowing some of the relevant structural parameters to be sequentially and independently modified. The thermal and self-organization behaviors of these uncommon macromolecular systems were investigated by polarized-light optical microscopy, differential scanning calorimetry and temperature-dependent small-angle X-ray scattering. Most polymers self-organize into mesophases possessing intertwined lamello-columnar morphologies, resulting from the simultaneous coexistence of lamellar and columnar sublattices. The successful preparation of oriented thin films of several of these polymeric homologues allowed further investigations by atomic force microscopy, transmission electron microscopy, electron diffraction, and grazing-incidence SAXS, which provided a deeper insight of the intricate supramolecular organizational modes, including the complete elucidation of the structure of the lamello-columnar mesophases. This simple and versatile strategy provides a route to elaborate polymeric materials incorporating two intercalated separate pathways toward charge carrier transport, of paramount importance for future electronic and optoelectronic applications.
BibTeX:
@article{Zeng2014a,
  author = {Zeng, D. L. and Tahar-Djebbar, I. and Xiao, Y. M. and Kameche, F. and Kayunkid, N. and Brinkmann, M. and Guillon, D. and Heinrich, B. and Donnio, B. and Ivanov, D. A. and Lacaze, E. and Kreher, D. and Mathevet, F. and Attias, A. J.},
  title = {Intertwined Lamello-Columnar Coassemblies in Liquid-Crystalline Side-Chain Pi-Conjugated Polymers: Toward a New Class of Nanostructured Supramolecular Organic Semiconductors},
  journal = {Macromolecules},
  year = {2014},
  volume = {47},
  number = {5},
  pages = {1715--1731},
  doi = {http://doi.org/10.1021/ma4020356}
}
Zhang, J., Frigoli, M., Dumur, F., Xiao, P., Ronchi, L., Graff, B., Morlet-Savary, F., Fouassier, J.P., Gigmes, D. and Lalevee, J. Design of Novel Photoinitiators for Radical and Cationic Photopolymerizations under Near UV and Visible LEDs (385, 395, and 405 nm) 2014 Macromolecules
Vol. 47(9), pp. 2811-2819 
article DOI  
Abstract: Three novel photoinitiators, namely (2,2'-bithiophen-5-yl)(4-(N,N'-dimethylaminophenyl)ketone, 5,10-dimethoxybenzo[j]fluoranthene and 6,6'-(((1E,1'E)-(2,5-bis(octyloxy)-1,4-phenylene)bis(ethene-2,1-diyl))bis(4,1-phenylene))bis(1,3,5-triazine- 2,4-diamine) applicable to different near UV or visible LEDs (385 nm, 395 nm, 405 nm or cold white LED) have been developed. When incorporated into multicomponent photoinitiating systems PISs (in the presence of iodonium salt (and optionally N-vinyl carbazole) or amine/alkyl halide couples), they exhibit quite excellent photoinitiating abilities for the cationic polymerization CP of epoxides or the free radical polymerization FRP of methacrylates under air. Compared to the corresponding camphorquinone-based systems, the newly developed photoinitiating systems display noticeably higher polymerization efficiencies under air (epoxide conversions = 31-55% vs similar to 0%, halogen lamp exposure; methacrylate conversion = 56-66% vs 0-8%, LED irradiation). These systems are very interesting to overcome the oxygen inhibition. The photochemical mechanisms have been studied by steady state photolysis, electron spin resonance spin trapping, fluorescence, cyclic voltammetry, and laser flash photolysis techniques.
BibTeX:
@article{Zhang2014,
  author = {Zhang, J. and Frigoli, M. and Dumur, F. and Xiao, P. and Ronchi, L. and Graff, B. and Morlet-Savary, F. and Fouassier, J. P. and Gigmes, D. and Lalevee, J.},
  title = {Design of Novel Photoinitiators for Radical and Cationic Photopolymerizations under Near UV and Visible LEDs (385, 395, and 405 nm)},
  journal = {Macromolecules},
  year = {2014},
  volume = {47},
  number = {9},
  pages = {2811--2819},
  doi = {http://doi.org/10.1021/ma500612x}
}
Zhang, J., Xiao, P., Morlet-Savary, F., Graff, B., Fouassier, J.P. and Lalevee, J. A known photoinitiator for a novel technology: 2-(4-methoxystyryl)-4,6-bis(trichloromethyl)-1,3,5-triazine for near UV or visible LED 2014 Polym. Chem.
Vol. 20(20), pp. 6019-6026 
article DOI URL 
Abstract: 2-(4-Methoxystyryl)-4,6-bis(trichloromethyl)-1,3,5-triazine (R-Cl) appears as a versatile high-performance photoinitiator (PI) under LED exposure at 385, 395 or 405 nm (intensities in the range [similar]9-140 mW cm-2). It has been used as an efficient Type I cleavable PI for the free radical photopolymerization (FRP) of (meth)acrylates under near UV or visible LED irradiation. When combined with various additives (i.e. amine, iodonium salt, or N-vinylcarbazole), the R-Cl based photoinitiating systems can exhibit an even higher efficiency than R-Cl alone. Remarkably, R-Cl alone as well as the R-Cl/additive systems lead to a photoinitiation ability for the FRP of methacrylate under air at 405 nm that is better than that of well-known commercial photoinitiators (e.g. bisacylphosphine oxide (BAPO), 2,4,6-trimethylbenzoyl-diphenyl-phosphineoxide (TPO), or 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1 (BDMB)). In addition, the R-Cl/iodonium salt/N-vinylcarbazole combination can also initiate the cationic polymerization of epoxides in the 385-405 nm range. Moreover, the photochemistry of these systems has been investigated by steady state photolysis, molecular orbital (MO) calculations, and electron spin resonance spin trapping techniques.
BibTeX:
@article{Zhang2014a,
  author = {Zhang, Jing and Xiao, Pu and Morlet-Savary, Fabrice and Graff, Bernadette and Fouassier, Jean Pierre and Lalevee, Jacques},
  title = {A known photoinitiator for a novel technology: 2-(4-methoxystyryl)-4,6-bis(trichloromethyl)-1,3,5-triazine for near UV or visible LED},
  journal = {Polym. Chem.},
  publisher = {The Royal Society of Chemistry},
  year = {2014},
  volume = {20},
  number = {20},
  pages = {6019-6026},
  url = {http://dx.doi.org/10.1039/C4PY00770K},
  doi = {http://doi.org/10.1039/C4PY00770K}
}
Zhang, J., Zivic, N., Dumur, F., Xiao, P., Graff, B., Fouassier, J.P., Gigmes, D. and Lalevee, J. UV-violet-blue LED induced polymerizations: Specific photoinitiating systems at 365, 385, 395 and 405 nm 2014 Polymer
Vol. 55(26), pp. 6641-6648 
article URL 
Abstract: Abstract Two naphthalimide derivatives (DMAENs) containing tertiary amine groups have been designed and synthesized. Upon exposure to near UV and visible LEDs (365 nm-455 nm), they lead to radicals without adding a hydrogen donor and, in combination with 2,4,6-tris(trichloromethyl)-1,3,5-triazine, an iodonium salt or N-vinylcarbazole, they produce radicals and cations. Compared to the well-known camphorquinone or bis(2,4,6-trimethylbenzoyl)-phenylphosphineoxide photoinitiator, the novel DMAENs containing photoinitiating systems are characterized by a very high reactivity for both the free radical polymerization of acrylates and the cationic polymerization of epoxides. This outstanding performance paves the way for polymerization in soft conditions (e.g. upon LED irradiation). The photochemical mechanisms are studied by Molecular Orbitals MO calculations, steady state photolysis, fluorescence, cyclic voltammetry, electron spin resonance spin trapping and laser flash photolysis techniques.
BibTeX:
@article{Zhang2014c,
  author = {Zhang, Jing and Zivic, Nicolas and Dumur, Frédéric and Xiao, Pu and Graff, Bernadette and Fouassier, Jean Pierre and Gigmes, Didier and Lalevee, Jacques},
  title = {UV-violet-blue LED induced polymerizations: Specific photoinitiating systems at 365, 385, 395 and 405 nm},
  journal = {Polymer},
  year = {2014},
  volume = {55},
  number = {26},
  pages = {6641--6648},
  url = {http://www.sciencedirect.com/science/article/pii/S0032386114010143}
}
Zhang, J.Z., Kang, H.J., Gao, Q., Li, J.Z., Pizzi, A. and Delmotte, L. Performances of Larch (larix gmelini) Tannin Modified Urea-Formaldehyde (TUF) Resin and Plywood Bonded by TUF Resin 2014 Journal of Applied Polymer Science
Vol. 131(22), pp. 41064 
article DOI  
Abstract: Tannin from larch (Larix gmelini) bark extracts, as a natural renewable resource, was used to prepare tannin-urea-formaldehyde (TUF) resin. The chemical structures of larch tannin and TUF resin were characterized by matrix-assisted laser desorption/ionization-time of flight mass spectrometry and C-13 nuclear magnetic resonance. The thermal behaviors of TUF resin were evaluated by differential scanning calorimetry (DSC) and thermomechanical analysis (TMA). The performances of TUF resin were investigated by measuring the bond strength and formaldehyde emission of its bonded plywood. It was clearly shown that larch tannin is mainly composed of prodelphinidin repeating units. Phenolic groups were introduced into TUF resin mainly linked by methylene bond. Larch tannin has an adverse effect on the resin curing. However, it promoted the rigidity and flexibility of the glued system and upgraded the properties of plywood. Therefore, larch tannin could be applied in the modification of urea-formaldehyde resin. (C) 2014 Wiley Periodicals, Inc.
BibTeX:
@article{Zhang2014f,
  author = {Zhang, J. Z. and Kang, H. J. and Gao, Q. and Li, J. Z. and Pizzi, A. and Delmotte, L.},
  title = {Performances of Larch (larix gmelini) Tannin Modified Urea-Formaldehyde (TUF) Resin and Plywood Bonded by TUF Resin},
  journal = {Journal of Applied Polymer Science},
  year = {2014},
  volume = {131},
  number = {22},
  pages = {41064},
  doi = {http://doi.org/10.1002/app.41064}
}
Zhou, X., Deeb, C., Vincent, R., Lerond, T., Adam, P.M., Plain, J., Wiederrecht, G.P., Charra, F., Fiorini, C., des Francs, G.C., Soppera, O. and Bachelot, R. Polarization-dependent fluorescence from an anisotropic gold/polymer hybrid nano-emitter 2014 Applied Physics Letters
Vol. 104(2), pp. 023114 
article DOI  
Abstract: Based on nanoscale photopolymerization triggered by the dipolar surface plasmon mode, we developed a light-emitting gold nanoparticle/Eosin Y-doped polymer hybrid nanostructure. Due to the anisotropic spatial distribution of the dipolar surface plasmon mode during photopolymerization, this nano-emitter is anisotropic in both geometry and emission. The trapped dye molecules in the hybrid nanostructure display fluorescence intensity that is dependent upon the polarization of the incident excitation light. This nano-emitter further allows the photo-selection of fluorescence configuration (i.e., molecule concentration and refractive index of active medium) by controlling the incident polarization. (C) 2014 AIP Publishing LLC.
BibTeX:
@article{Zhou2014,
  author = {Zhou, X. and Deeb, C. and Vincent, R. and Lerond, T. and Adam, P. M. and Plain, J. and Wiederrecht, G. P. and Charra, F. and Fiorini, C. and des Francs, G. C. and Soppera, O. and Bachelot, R.},
  title = {Polarization-dependent fluorescence from an anisotropic gold/polymer hybrid nano-emitter},
  journal = {Applied Physics Letters},
  year = {2014},
  volume = {104},
  number = {2},
  pages = {023114},
  doi = {http://doi.org/10.1063/1.4861898}
}
Zhou, X., Soppera, O., Plain, J., Jradi, S., Wei Sun, X., Volkan Demir, H., Yang, X., Deeb, C., Gray, S., Wiederrecht, G. and Bachelot, R. Plasmon-based photopolymerization: Near-field probing, advanced photonic nanostructures and nanophotochemistry 2014
Vol. 16(11)Journal of Optics (United Kingdom), pp. - 
article URL 
Abstract: Hybrid nanomaterials are targeted by a rapidly growing group of nanooptics researchers, due to the promise of optical behavior that is difficult or even impossible to create with nanostructures of homogeneous composition. Examples of important areas of interest include coherent coupling, Fano resonances, optical gain, solar energy conversion, photocatalysis, and nonlinear optical interactions. In addition to the coupling interactions, the strong dependence of optical resonances and damping on the size, shape, and composition of the building blocks provides promise that the coupling interactions of hybrid nanomaterials can be controlled and manipulated for a desired outcome. Great challenges remain in reliably synthesizing and characterizing hybrid nanomaterials for nanooptics. In this review, we describe the synthesis, characterization, and applications of hybrid nanomaterials created through plasmon-induced photopolymerization. The work is placed within the broader context of hybrid nanomaterials involving plasmonic metal nanoparticles and molecular materials placed within the length scale of the evanescent field from the metal surface. We specifically review three important applications of free radical photopolymerization to create hybrid nanoparticles: local field probing, photoinduced synthesis of advanced hybrid nanoparticles, and nanophotochemistry. © 2014 IOP Publishing Ltd.
BibTeX:
@article{Zhou2014a,
  author = {Zhou, X. and Soppera, O. and Plain, J. and Jradi, S. and Wei Sun, X. and Volkan Demir, H. and Yang, X. and Deeb, C. and Gray, S.K. and Wiederrecht, G.P. and Bachelot, R.},
  title = {Plasmon-based photopolymerization: Near-field probing, advanced photonic nanostructures and nanophotochemistry},
  booktitle = {Journal of Optics (United Kingdom)},
  year = {2014},
  volume = {16},
  number = {11},
  pages = {--},
  url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908582429&doi=10.1088%2f2040-8978%2f16%2f11%2f114002&partnerID=40&md5=65a8d6bc8edd5be29bc6794034669092}
}
Zouaoui, N., Labaki, M. and Jeguirim, M. Diesel soot oxidation by nitrogen dioxide, oxygen and water under engine exhaust conditions: Kinetics data related to the reaction mechanism 2014 Comptes Rendus Chimie
Vol. 17(7-8), pp. 672-680 
article DOI  
BibTeX:
@article{Zouaoui2014,
  author = {Zouaoui, N. and Labaki, M. and Jeguirim, M.},
  title = {Diesel soot oxidation by nitrogen dioxide, oxygen and water under engine exhaust conditions: Kinetics data related to the reaction mechanism},
  journal = {Comptes Rendus Chimie},
  year = {2014},
  volume = {17},
  number = {7-8},
  pages = {672--680},
  doi = {http://doi.org/10.1016/j.crci.2013.09.004}
}