Nos publications
Ma, Qiang; Liu, Shaohui; Dot, Marie Le; Mokbel, Haifaa; Zhang, Yijun; Graff, Bernadette; Lalevee, Jacques Imidazole based dual photo/thermal initiators for highly efficient radical polymerization under air with a metal-free approach Article de journal Dans: Polymer Chemistry, vol. 12, no. 44, p. 6386–6391, 2021. @article{Ma2021b, By virtue of remarkable spatial resolution, a metal-free visible LED photopolymerization process, initiated by imidazole based charge transfer complexes under mild conditions (room temperature, without an inert atmosphere, monomer purification or stabilizer removal), is reported. For two multifunctional acrylate monomers, an outstanding photoinitiating ability was proved (up to 80% of acrylate function conversion) by combining imidazoles (electron donors) and iodonium salts (electron acceptors) under 405 nm LED irradiation. 3D printing experiments using a low intensity 3D printer are reported to demonstrate the performance of this CTC approach. Meanwhile, the thermal polymerization features a relatively low thermal initiating temperature, making the process more pursuable and also easier to achieve for thick samples in practice and/or polymerization in shadow areas (where light does not penetrate). As a new dual photo/thermal initiator, it showcases tremendous potential for 3D printing with high resolution and high-tech composites. This dual initiating system represents a new type of thermal initiator toward a safer way (peroxide-free) and provides a new pathway for surface repairing or modifying of direct laser writing in a low toxicity, facile manner. |
Jing, Jiang; Heinrich, Benoit; Prel, Alexis; Steveler, Emilie; Han, Tianyan; Bulut, Ibrahim; Mery, Stephane; Leroy, Yann; Leclerc, Nicolas; Leveque, Patrick; Rosenthal, Martin; Ivanov, Dimitri A.; Heiser, Thomas Efficient 3D charge transport in planar triazatruxene-based dumbbell-shaped molecules forming a bridged columnar phase Article de journal Dans: Journal of Materials Chemistry A, vol. 9, no. 43, p. 24315–24324, 2021. @article{Jing2021, Planar conjugated molecular backbones are essential for achieving high charge carrier mobilities along molecular pi-stacking directions but are often concomitant with poor charge transport in other directions. This is particularly the case for molecules that are functionalized with alkyl chains, which ensure good processability in solution but introduce detrimental insulating regions. Here, we show that soluble planar dumbbell-shaped molecules, composed of two triazatruxene (TAT) units covalently bonded to a central thiophene-thienopyrroledione-thiophene (TPD) segment self-assemble into an original structure that allows efficient 3D charge transport. Grazing-incidence wide-angle X-ray scattering investigations as well as micro-focus X-ray experiments on single crystals reveal that the TAT derivatives form a columnar-nematic mesophase in which columns of stacked TAT units spaced by molten chains are interconnected by TPD bridges. Upon annealing, a crystalline phase, stemming from the parent hexagonal mesophase, is obtained with the molecular stacking direction lying in-plane. Transport measurements in the crystalline phase reveal an unusually high out-of-plane hole mobility of 0.17 cm(2) V-1 s(-1) and a lower limit for the in-plane mobility of 0.05 cm(2) V-1 s(-1). The results suggest that the TPD segments bridging neighboring stacks of TAT columns are responsible for efficient hole transport in 3D. |
Dedzo, Gustave Kenne; Rigolet, Severinne; Josien, Ludovic; Ngameni, Emmanuel; Dzene, Liva Functionalization of synthetic saponite: Identification of grafting sites and application for anions sequestration Article de journal Dans: APPLIED SURFACE SCIENCE, vol. 567, 2021, ISSN: 0169-4332. @article{Dedzo2021b, |
Kasapis, Evangelos; Tsitoni, Konstantina; Manesi, Gkreti-Maria; Moutsios, Ioannis; Moschovas, Dimitrios; Vashurkin, Dmitry V.; Kotlyarskiy, Denis S.; Ivanov, Dimitri A.; Avgeropoulos, Apostolos Self-assembly behavior of ultra-high molecular weight in-situ anionically synthesized polymer matrix composite materials ``grafted from'' single- or multi-wall CNTs Article de journal Dans: POLYMER, vol. 235, 2021, ISSN: 0032-3861. @article{Kasapis2021, |
Ng, Eng-Poh; Ahmad, Nur Hidayahni; Ling, Tau Chuan; Khoerunnisa, Fitri; Daou, T. Jean Offretite zeolite templated by amphiphile and its catalytic performance in microwave-assisted Knoevenagel condensation of benzaldehyde and ethyl cyanoacetate Article de journal Dans: MATERIALS CHEMISTRY AND PHYSICS, vol. 272, 2021, ISSN: 0254-0584. @article{Ng2021ab, |
Matangouo, Baudelaire; Dedzo, Gustave Kenne; Dzene, Liva; Nanseu-Njiki, Charles Peguy; Ngameni, Emmanuel Encapsulation of butylimidazole in smectite and slow release for enhanced copper corrosion inhibition Article de journal Dans: APPLIED CLAY SCIENCE, vol. 213, 2021, ISSN: 0169-1317. @article{Matangouo2021b, |
Ho, Bich Ngoc; Pino-Perez, David; Ghimbeu, Camelia Matei; Diaz, Joseph; Peredo-Mancilla, Deneb; Hort, Cecile; Bessieres, David Determination of methane, ethane and propane on activated carbons by experimental pressure swing adsorption method Article de journal Dans: JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, vol. 95, 2021, ISSN: 1875-5100. @article{Ho2021b, |
Ng, Eng-Poh; Ahmad, Nur Hidayahni; Ling, Tau Chuan; Khoerunnisa, Fitri; Daou, T. Jean Offretite zeolite templated by amphiphile and its catalytic performance in microwave-assisted Knoevenagel condensation of benzaldehyde and ethyl cyanoacetate Article de journal Dans: Materials Chemistry and Physics, vol. 272, p. 125001, 2021. @article{Ng2021a, A detailed investigation on the crystallization of offretite (OFF) zeolite templated by non-toxic cetyltrimethylammonium bromide (CTABr) is reported. Various hydrothermal synthesis conditions are prepared by systematically adjusting the synthesis variables, namely crystallization time, heating temperature and amount of reactants (SiO2, Al2O3, K2O, M2O (M = Na+, Cs+), CTABr and H2O) to investigate their effects on the crystal growth of OFF zeolite. It is shown that each variable has its profound influences on the crystallization process, which further affect the properties of final zeolite products (e.g. phase purity, morphology, crystal size). Unlike classical synthesis pathway using tetramethylammonium (TMA+) as organic template, the CTABr-templating approach successfully produces large OFF single crystals (framework Si/Al ratio = 4.11) with hexagonal prism shape (ca. 9.4 x 1.8 mu m2) and smooth surface. Besides that, the OFF zeolite (81.9% conversion) also shows comparable or even higher catalytic performance than other zeolites reported in this work and other works in microwave assisted-Knoevenagel reaction of benzaldehyde and ethyl cyanoacetate, offering a sustainable and facile pathway for preparing zeolitic materials for advanced applications. |
Matangouo, Baudelaire; Dedzo, Gustave Kenne; Dzene, Liva; Nanseu-Njiki, Charles Peguy; Ngameni, Emmanuel Encapsulation of butylimidazole in smectite and slow release for enhanced copper corrosion inhibition Article de journal Dans: Applied Clay Science, vol. 213, p. 106266, 2021. @article{Matangouo2021, Butylimidazole (Bim) a well-known copper corrosion inhibitor was encapsulated in its cationic form, in a smectite type clay mineral (Sabga clay mineral (Sg)) by cation exchange of sodium cations located in the interlayer space of the layered clay mineral. Physicochemical characterization (XRD, FT-IR and TGA) revealed that Bim was intercalated (0.48 mmol per gram of hybrid material) in its cationic form. The intercalation was followed by an increase of the layer to layer distance from 11.4 angstrom to 13.9 angstrom. The composite material (Sg-Bim) was then applied as copper corrosion inhibitor in concentrated sodium sulphate solution (0.1 M) and experiments monitored electrochemically. For a given concentration of Sg-Bim, the corrosion potential increased as a function of time. The corrosion inhibition percentages obtained both by corrosion current densities (up to 80.7%) and charge transfer resistance (up to 87.0%) were found to increase with the release time. This confirmed that the clay mineral Sg effectively served as a nanocontainer for the encapsulation of Bim. Moreover, the release of Bim occurred gradually when the organoclay was immersed in concentrated saline solution. Investigations on the effect of temperature on the process confirmed that the action of released Bim against copper corrosion consisted in improving the stability of the Cu2O protecting layer, according to a physisorption mechanism. |
Ho, Bich Ngoc; Pino-Perez, David; Ghimbeu, Camelia Matei; Diaz, Joseph; Peredo-Mancilla, Deneb; Hort, Cecile; Bessieres, David Determination of methane, ethane and propane on activated carbons by experimental pressure swing adsorption method Article de journal Dans: Journal of Natural Gas Science and Engineering, vol. 95, p. 104124, 2021. @article{Ho2021, This study focuses on isotherms adsorption of natural gas components i.e. methane, ethane, and propane on five commercial activated carbons to determine their different behaviors towards each compound. These five commercial activated carbons have different textures that are supposed to affect their adsorption capacity. The experiments were carried out at 303 K within a pressure range of 0-3 MPa using a homemade manometric adsorption device. A comprehensive process was also detailed with a step-by-step calculation. The obtained data were then fitted into the modified Langmuir model in order to justify the mono-layer coverage. Hence, the relationship between the Langmuir adsorption capacities and different textural properties were plotted, and only the specific area showed its direct influence. The outcome also turned out that the most promising activated carbon is the one that possesses not only the highest specific surface area but also has an adequate balance between the microporous and mesoporous volumes. |
Dedzo, Gustave Kenne; Rigolet, Severinne; Josien, Ludovic; Ngameni, Emmanuel; Dzene, Liva Functionalization of synthetic saponite: Identification of grafting sites and application for anions sequestration Article de journal Dans: Applied Surface Science, vol. 567, p. 150911, 2021. @article{Dedzo2021, The present work reports the study of the mechanism of grafting of an alkoxysilane on the surface of a synthetic saponite. XRD and SEM/EDX characterizations confirmed the effective synthesis of the clay mineral with structural formula Na-INT(0).(50)TET[Si3.50Al0.50](OCT)[Mg-3]O-10(OH)(2). The functionalization of this material in its pristine or acid pre-treated form with a cationic silane (tetradecyldimethyl(3-trimethoxysilylpropyl)ammonium chloride) yielded a nanohybrid organoclay with interesting structural and chemical properties highlighted by Si-29 solid state NMR, XRD, FTIR, TGA and electrochemical characterizations. The monodentate and bidentate grafting of the alkoxysilane was observed regardless the starting material was pristine or acid pre-treated saponite. The more significant layer-to-layer distance increase observed after the functionalization of acid pretreated saponite indicated some interlayer intercalation/grafting of the alkoxysilane. Electrochemical characterization (cyclic voltammetry and electrochemical impedance spectroscopy) showed that the modified clay mineral exhibited anionic exchange property due to the presence of grafted cationic alkoxysilane. This anionic exchange capacity was confirmed when successfully applied for the adsorption of the anionic dye Congo Red. In all cases, the acid pre-treatment tended to improve the anion exchange property of the organoclay. |
Cennamo, N.; Arcadio, F.; Noel, L.; Zeni, L.; Soppera, O. Flexible and Ultrathin Metal-Oxide Films for Multiresonance-Based Sensors in Plastic Optical Fibers Article de journal Dans: Acs Applied Nano Materials, vol. 4, no. 10, p. 10902–10910, 2021. @article{Cennamo2021, We have exploited a laser-based integration process of ultrathin metal-oxide (MO) films to improve the plasmonic effect in sensors based on D-shaped plastic optical fibers (POFs). More specifically, using ultrathin MO films, the performances of the surface plasmon resonance (SPR) phenomenon improve and a lossy mode resonance (LMR) can occur. Although the role of this kind of materials has been already presented, when they are deposited as overlayer (upside the thin metal film), we have used a different approach by depositing MOs, especially zirconium oxide (ZrO2) and titanium oxide (TiO2), as flexible intermediate layers between the exposed core of POFs and the gold film. The MO layer is prepared from sol-gel solution, and deep-UV laser curing allows us to densify the thin film and tune the refractive index, with a room-temperature process fully compatible with the flexible polymer substrates. In a preliminary step, we have carried out numerical results, based on transfer matrix formalism, to predict the SPR response. Subsequently, we have experimentally characterized the developed sensor configurations. Numerical and experimental results have shown above all an enhancement of the sensor performances, in terms of SPR sensitivity, with respect to a reference sensor based on a polymer instead of MOs. Moreover, in some proposed sensor configurations, together with the SPR phenomenon, an LMR phenomenon was observed. It occurred in a different wavelength range, for a typical refractive index range present when considering receptors for biochemical sensing applications. Therefore, both resonances (SPR and LMR) could be used in several application fields. |
Haber, Gerges El; Noel, Laurent; Lin, Ching-Fu; Gree, Simon; Vidal, Loic; Zan, Hsiao-Wen; Hobeika, Nelly; Lhost, Olivier; Trolez, Yves; Soppera, Olivier Near-Infrared Laser Direct Writing of Conductive Patterns on the Surface of Carbon Nanotube Polymer Nanocomposites. Article de journal Dans: ACS applied materials & interfaces, vol. 13, no. 41, p. 49279–49287, 2021. @article{ElHaber2021, Near-infrared (NIR) laser annealing is used to write conductive patterns on the surface of polypropylene/multi-walled carbon nanotube nanocomposite (PP/MWCNT) plates. Before irradiation, the surface of the nanocomposite is not conductive due to the partial alignment of the MWCNT, which occurs during injection molding. We observe a significant decrease in the surface sheet resistance using NIR laser irradiation, which we explain by a randomization of the orientation of MWCNTs in the PP matrix melt by NIR laser irradiation. After only 5 s of irradiation, the sheet resistance of PP/MWCNTs, annealed with a laser at a power density of 7 W/cm2, decreases by more than 4 decades from 100 MOmega/sq to 1 kOmega/sq. Polarized Raman, TEM, and SEM are used to investigate the changes in the sheet resistance and confirm the physico-chemical processes involved. This allows direct writing of conductive patterns using a NIR laser on the surface of nanocomposite polymer substrates, with the advantages of a fast, easy, and low-energy consumption process. |
Gerard, Violaine; Galopin, Christophe; Ay, Emel; Launay, Valentin; Morlet-Savary, Fabrice; Graff, Bernadette; Lalevee, Jacques Photostability of L-tryptophan in aqueous solution: Effect of atmosphere and antioxidants addition Article de journal Dans: Food Chemistry, vol. 359, p. 129949, 2021. @article{Gerard2021b, L-Tryptophan (L-Trp) is an amino acid important in nutrition, and mainly provided by food supplements. However, it is known to be unstable under light irradiation, which is an issue for the nutrition and feed industry. In the present study, the photostability of L-Trp was studied in acidic aqueous solutions under air and under an inert atmosphere, N2. The photodegradation was followed using UV-visible and fluorescence spectroscopy after photolysis. Moreover, molecular orbitals and bond dissociation energies calculations, and electron spin resonance spectroscopy were performed. From all these results, a photodegradation occurring through a free radical pathway was suggested. Interestingly, several antioxidants were tested to improve the photostability of L-Trp, especially during irradiation under air, since the L-Trp was evidenced to be much less stable under air than under N2. The results showed that sodium benzoate or EDTA were not efficient, but antioxidants such as chlorogenic acid, ascorbic acid or potassium sorbate improved significantly the photostability of L-Trp in acidic solutions. |
Paruli, III Ernesto; Soppera, Olivier; Haupt, Karsten; Gonzato, Carlo Photopolymerization and Photostructuring of Molecularly Imprinted Polymers Article de journal Dans: Acs Applied Polymer Materials, vol. 3, no. 10, p. 4769–4790, 2021. @article{Paruli2021, Over the past few decades, molecularly imprinted polymers (MIPs) have become extremely attractive materials for biomimetic molecular recognition due to their excellent affinity and specificity, combined with robustness, easy engineering, and competitive costs. MIPs are synthetic antibody mimics obtained by the synthesis of 3D polymer networks around template molecules, thus generating specific binding cavities. Numerous efforts have been made to improve the performances and the versatility of MIPs, with a special focus on ways to control their size, morphology, and physical form for a given application. Gaining control over these parameters has allowed MIPs to adopt a defined micro- and nanostructure, providing access to nanocomposites and micro/nanosystems, with fine-tuned properties, which become critical for modern applications ranging from chemical sensing to bioimaging and medical therapy. In this rich and complex context, light as a cheap and versatile source of energy has emerged as a powerful tool for structuring MIPs. This review presents the most recent advances on structuring MIPs at the nano/ microscale, using light as a stimulus to trigger the polymerization process. Thus, after a general introduction on radical polymerization of MIPs, with a special emphasis on photopolymerization by UV and visible light, the reader will be presented with ways of structuring MIPs by processes that are inherently spatially confined, such as localized photopolymerization and lithographic techniques, supported by representative examples and complemented with a final outlook on future trends in this field. |
Zhang, K.; Sciacca, D.; Coati, A.; Bernard, R.; Borensztein, Y.; Diener, P.; Grandidier, B.; Lefebvre, I.; Derivaz, M.; Pirri, C.; Prevot, G. Resolving the structure of the striped Ge layer on Ag(111): Ag2Ge surface alloy with alternate fcc and hcp domains Article de journal Dans: Physical Review B, vol. 104, no. 15, p. 155403, 2021. @article{Zhang2021ab, Two-dimensional honeycomb lattices beyond graphene, such as germanene, promise new physical properties such as quantum spin Hall effect. While there have been many claims of growth of germanene, the lack of precise structural characterization of the epitaxial layers synthesized hinders further research. The striped layer formed by Ge deposition on Ag(111) has been recently ascribed as a stretched germanene layer. Using surface x-ray diffraction and density-functional theory calculations, we demonstrate that it corresponds in fact to a Ag2Ge surface alloy with an atomic density 6.45% higher than the Ag(111) atomic density. The overall structure is formed by stripes associated with a face-centered cubic top-layer alignment, alternating with stripes associated with a hexagonal close-packed top-layer alignment, in great analogy with the (22x root 3) Au(111) reconstruction. |
Frikha, Kawthar; Limousy, Lionel; Arif, Muhammad Bilal; Thevenin, Nicolas; Ruidavets, Lionel; Zbair, Mohamed; Bennici, Simona Exhausted Grape Marc Derived Biochars: Effect of Pyrolysis Temperature on the Yield and Quality of Biochar for Soil Amendment Article de journal Dans: Sustainability, vol. 13, no. 20, p. 11187, 2021. @article{Frikha2021, The present study focuses on the valorisation of winery industry wastes through slow pyrolysis of exhausted grape marc (EGM). The optimal pyrolysis parameters were firstly identified by small scale experiments carried out using thermogravimetric analysis. Nine pyrolysis temperatures were tested and their influence on the decomposition of the EGM residue and biochar yield was evaluated. Then, biochar production was conducted in a pilot plant at three chosen temperatures (450, 500 and 550 & DEG;C) at which the biochar was shown to be stable. The effects of biochar application to soil with respect to plant (ryegrass) growth was also evaluated. Pyrolysis of EGM at the 450-550 & DEG;C temperature range has been shown to generate thermally stable and nutrient-rich biochars, but only the biochar produced at 450 & DEG;C showed a marked benefit effect of ryegrass growth.</p> |
Odarchenko, Yaroslav; Rosenthal, Martin; Hernandez, Jaime J.; Doblas, David; Cola, Emanuela Di; Soloviev, Mikhail; Ivanov, Dimitri A. Assessing Fast Structure Formation Processes in Isotactic Polypropylene with a Combination of Nanofocus X-ray Diffraction and In Situ Nanocalorimetry Article de journal Dans: Nanomaterials, vol. 11, no. 10, p. 2652, 2021. @article{Odarchenko2021, A combination of in situ nanocalorimetry with simultaneous nanofocus 2D Wide-Angle X-ray Scattering (WAXS) was used to study polymorphic behaviour and structure formation in a single micro-drop of isotactic polypropylene (iPP) with defined thermal history. We were able to generate, detect, and characterize a number of different iPP morphologies using our custom-built ultrafast chip-based nanocalorimetry instrument designed for use with the European Synchrotron Radiation Facility (ESRF) high intensity nanofocus X-ray beamline facility. The detected iPP morphologies included monoclinic alpha-phase crystals, mesophase, and mixed morphologies with different mesophase/crystalline compositional ratios. Monoclinic crystals formed from the mesophase became unstable at heating rates above 40 K s(-1) and showed melting temperatures as low as ~30 K below those measured for iPP crystals formed by slow cooling. We also studied the real-time melt crystallization of nanogram-sized iPP samples. Our analysis revealed a mesophase nucleation time of around 1 s and the co-existence of mesophase and growing disordered crystals at high supercooling & LE;328 K. The further increase of the iPP crystallization temperature to 338 K changed nucleation from homogeneous to heterogeneous. No mesophase was detected above 348 K. Low supercooling (& GE;378 K) led to the continuous growth of the alpha-phase crystals. In conclusion, we have, for the first time, measured the mesophase nucleation time of supercooled iPP melted under isothermal crystallization conditions using a dedicated experimental setup designed to allow simultaneous ultrafast chip-based nanocalorimetry and nanofocus X-ray diffraction analyses. We also provided experimental evidence that upon heating, the mesophase converts directly into thermodynamically stable monoclinic alpha-phase crystals via perfection and reorganization and not via partial melting. The complex phase behaviour of iPP and its dependence on both crystallization temperature and time is presented here using a time-temperature-transformation (TTT) diagram.</p> |
Launay, Valentin; Dumur, Frederic; Gigmes, Didier; Lalevee, Jacques Near-infrared light for polymer re-shaping and re-processing applications Article de journal Dans: Journal of Polymer Science, vol. 59, no. 19, p. 2193–2200, 2021. @article{Launay2021, The re-shaping and reprocessing of polymers are usually associated with strong energetic costs, strongly limiting their practical usage. In this article, a new approach is proposed based on a near-infrared (NIR) activation of the material in presence of a NIR heater for a highly efficient process upon ecofriendly NIR light emitting diodes irradiation. Markedly, due to this light-triggered process, a spatial control of the shaping/reprocessing behavior can be obtained, that is, only the needed parts are irradiated preventing a heating of all the sample. In this work, different thermoplastics are reshaped or reprocessed due to NIR activation in presence of an organic NIR dye used as heater. As other examples of photothermal treatment upon NIR light, the on-demand dehydration of polyethylene glycol (PEG-based) hydrogels are also provided. All the processes are followed in real time by thermal imaging camera. |
Le, Cuong Minh Quoc; Petitory, Tatiana; Wu, Xingyu; Spangenberg, Arnaud; Ortyl, Joanna; Galek, Mariusz; Infante, Lorena; Therien-Aubin, Heloise; Chemtob, Abraham Water-Soluble Photoinitiators from Dimethylamino-Substituted Monoacylphosphine Oxide for Hydrogel and Latex Preparation Article de journal Dans: Macromolecular Chemistry and Physics, vol. 222, no. 19, p. 2100217, 2021. @article{Le2021bb, In order to respond to the growing demand for radiation-curable waterborne products like hydrogels or inks, there is a need for water-soluble radical photoinitiators exhibiting absorption in the near UV to visible range. Herein the synthesis of a novel type-I diphenylphosphine oxide photoinitiator bearing a 2,6-dimethyl-4-dimethylaminobenzoyl group is described. The presence of a tertiary amino group in the para position of the benzoyl group results in an increased absorption in the visible range and its facile conversion into water-soluble derivatives after a subsequent protonation or quaternization reaction. Quaternization with methyl triflate (MeOTf) yields a water-soluble monoacylphosphine oxide compound displaying a quaternary ammonium group -N(CH3)(3)(+) OTf-. The main characteristics are water-solubility, shelf-stability, absorption in near-UV range, low cytotoxicity, and efficient alpha-scission as evidenced by steady-state photolysis experiments. Its photopolymerization efficiency has been evaluated by real-time Fourier transform infrared spectroscopy at 385 and 420 nm using an aqueous solution of poly(ethylene glycol) acrylate. The polymerization rate is comparable to that obtained with the conventional water-soluble monoacylphosphine oxide TPO-Li. Using this new photoinitiator, 3D-printed hydrogels, and aqueous polymer dispersions can be prepared. |
2021
Ammouli, Tarik; Paillaud, Jean-Louis; Nouali, Habiba; Stephan, Regis; Hanf, Marie-Christine; Sonnet, Philippe; Deroche, Irena
Insights into Water Adsorption in Potassium-Exchanged X-type Faujasite Zeolite: Molecular Simulation and Experiment Article de journal
Dans: Journal of Physical Chemistry C, vol. 125, no. 35, p. 19405–19416, 2021.
@article{Ammouli2021a,
title = {Insights into Water Adsorption in Potassium-Exchanged X-type Faujasite Zeolite: Molecular Simulation and Experiment},
author = {Tarik Ammouli and Jean-Louis Paillaud and Habiba Nouali and Regis Stephan and Marie-Christine Hanf and Philippe Sonnet and Irena Deroche},
doi = {10.1021/acs.jpcc.1c03593},
year = {2021},
date = {2021-09-01},
journal = {Journal of Physical Chemistry C},
volume = {125},
number = {35},
pages = {19405--19416},
abstract = {In the present study, we have combined several atomic-scale computational techniques [static lattice optimization, density functional theory (DFT), canonical Monte Carlo (MC), and Gibbs ensemble MC (GEMC)] with experiment in order to describe the adsorption of water in potassium-exchanged X-type faujasite. Indeed, by applying DFT calculations, we have evidenced a strongly heterogeneous adsorbent surface and classified the preferential adsorption sites at zero loading for water molecules. The sodalite cage was identified as the preferential location. Moreover, by applying the GEMC technique, we have successfully simulated the water adsorption isotherm in the K-X zeolite. Finally, through the canonical MC simulation, we have described the microscopic mechanisms of water adsorption within the K-X zeolite at various uptakes, ranging from low loading (8 H2O/unit cell) to saturation (240 H2O/unit cell). We have evidenced that at low loading, the sodalite cages host the major part of the adsorbed molecules, while at increasing hydration ratio, the water molecules locate more in supercages. At saturation, each sodalite cage accommodates more than three water molecules on average, whereas nearly 90% of water molecules are located within supercages. Finally, at any hydration ratio, the water molecules in supercages coordinate preferentially with potassium cations at crystallographic site III (or III') rather than at site II. Cations in site II start interacting with water molecules only at uptakes superior to 80 H2O molecules/unit cell, once all cations in site III (or III') are occupied by at least one water molecule.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Khitous, Amine; Lin, Ching-Fu; Kameche, Farid; Zan, Hsiao-Wen; Malval, Jean-Pierre; Berling, Dominique; Soppera, Olivier
Plasmonic Au Nanoparticle Arrays for Monitoring Photopolymerization at the Nanoscale Article de journal
Dans: Acs Applied Nano Materials, vol. 4, no. 9, p. 8770–8780, 2021.
@article{Khitous2021,
title = {Plasmonic Au Nanoparticle Arrays for Monitoring Photopolymerization at the Nanoscale},
author = {Amine Khitous and Ching-Fu Lin and Farid Kameche and Hsiao-Wen Zan and Jean-Pierre Malval and Dominique Berling and Olivier Soppera},
doi = {10.1021/acsanm.1c01377},
year = {2021},
date = {2021-09-01},
journal = {Acs Applied Nano Materials},
volume = {4},
number = {9},
pages = {8770--8780},
abstract = {The localized surface plasmon resonance (LSPR) of Au nanoparticles (NPs) was used to monitor photopolymerization at the nanoscale by in situ monitoring the optical response of AuNPs during the light-induced polymerization process. To show the interest of this approach, two configurations were used, which correspond to a resonant and a nonresonant excitation regime between the photopolymer and the AuNPs used as nanoprobes. We show that not only this method enables the progress monitoring of the photopolymerization reaction at the nanometric scale but also can highlight the near-field coupling effect responsible for the acceleration of the photoinduced reaction. This methodology appears very interesting to study the photoinduced nanofabrication processes of metal/polymer hybrid nanoparticles and more globally to study the photopolymerization reactions at the nanometric scale.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ammouli, Tarik; Paillaud, Jean-Louis; Nouali, Habiba; Stephan, Regis; Hanf, Marie-Christine; Sonnet, Philippe; Deroche, Irena
Insights into Water Adsorption in Potassium-Exchanged X-type Faujasite Zeolite: Molecular Simulation and Experiment Article de journal
Dans: JOURNAL OF PHYSICAL CHEMISTRY C, vol. 125, no. 35, SI, p. 19405-19416, 2021, ISSN: 1932-7447.
@article{Ammouli2021b,
title = {Insights into Water Adsorption in Potassium-Exchanged X-type Faujasite Zeolite: Molecular Simulation and Experiment},
author = {Tarik Ammouli and Jean-Louis Paillaud and Habiba Nouali and Regis Stephan and Marie-Christine Hanf and Philippe Sonnet and Irena Deroche},
doi = {10.1021/acs.jpcc.1c03593},
issn = {1932-7447},
year = {2021},
date = {2021-09-01},
journal = {JOURNAL OF PHYSICAL CHEMISTRY C},
volume = {125},
number = {35, SI},
pages = {19405-19416},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Guiza, Khawla; Arfi, Rim Ben; Mougin, Karine; Vaulot, Cyril; Michelin, Laure; Josien, Ludovic; Schrodj, Gautier; Ghorbal, Achraf
Development of novel and ecological keratin/cellulose-based composites for absorption of oils and organic solvents Article de journal
Dans: Environmental Science and Pollution Research, vol. 28, no. 34, p. 46655–46668, 2021.
@article{Guiza2021,
title = {Development of novel and ecological keratin/cellulose-based composites for absorption of oils and organic solvents},
author = {Khawla Guiza and Rim Ben Arfi and Karine Mougin and Cyril Vaulot and Laure Michelin and Ludovic Josien and Gautier Schrodj and Achraf Ghorbal},
doi = {10.1007/s11356-020-11260-7},
year = {2021},
date = {2021-09-01},
journal = {Environmental Science and Pollution Research},
volume = {28},
number = {34},
pages = {46655--46668},
abstract = {Keratin/cellulose cryogels were successfully fabricated using chicken feathers (CF) and cardboard (C) from environmental waste for the first time, to be exploited in oil/solvent absorption. The keratin/cellulose-based composites were obtained by combining the dissolution of CF and C waste in 1-butyl-3-methylimidazolium chloride (Bmim(-)Cl(+)) ionic liquid green solvent via regeneration, simply by the freeze-drying method. The characterization analysis of the synthesized keratin/cellulose-based composites was performed using Fourier transform infrared spectrometry, X-ray diffractometry, scanning electron microscopy, and thermogravimetry. The as-prepared cryogel can absorb various oils and organic solvents. Moreover, its sorption capacity can reach up to 6.9-17.7 times the weight of the initial cryogel. This kind of CF/C cryogel revealed good and fast absorption efficiency. It could also be reused by simple absorption/distillation and absorption/desorption methods. Through the kinetic analysis, it was found that the pseudo-second-order model was more appropriate for the keratin/cellulose cryogel oil absorption process. Besides, owing to its low cost, good absorption capacity, and excellent reusability, this cryogel has potential for spill cleanup of oils and organic solvents.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Breloy, Louise; Mhanna, Rana; Malval, Jean-Pierre; Brezova, Vlasta; Jacquemin, Denis; Pascal, Simon; Siri, Olivier; Versace, Davy-Louis
Azacalixphyrins as an innovative alternative for the free-radical photopolymerization under visible and NIR irradiation without the need of co-initiators Article de journal
Dans: Chemical Communications, vol. 57, no. 71, p. 8973–8976, 2021.
@article{Breloy2021,
title = {Azacalixphyrins as an innovative alternative for the free-radical photopolymerization under visible and NIR irradiation without the need of co-initiators},
author = {Louise Breloy and Rana Mhanna and Jean-Pierre Malval and Vlasta Brezova and Denis Jacquemin and Simon Pascal and Olivier Siri and Davy-Louis Versace},
doi = {10.1039/d1cc03607f},
year = {2021},
date = {2021-09-01},
journal = {Chemical Communications},
volume = {57},
number = {71},
pages = {8973--8976},
abstract = {Azacalixphyrins are unique aromatic macrocycles featuring strong absorption from the visible to the near-infrared (NIR) spectral ranges. This work demonstrates through EPR spin-trapping experiments that the N-alkyl tetrasubstituted azacalixphyrin (ACP) can lead to the formation of carbon-centered radicals initiating for the free-radical photopolymerization (FRP) of bio-based acrylate monomer upon the irradiation of several light emitting diodes, which emissions range from 455 to 660 nm. Compared to other previously reported systems, the tremendous advantage of the ACP photoinitiating system is its ability to promote photopolymerization on its own, avoiding the introduction of co-initiators. A new potential application of this promising photoinitiator is highlighted through the fabrication of well-defined microstructures under NIR laser diode irradiation at lambda = 800 nm.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ammouli, Tarik; Paillaud, Jean-Louis; Nouali, Habiba; Stephan, Regis; Hanf, Marie-Christine; Sonnet, Philippe; Deroche, Irena
Insights into Water Adsorption in Potassium-Exchanged X-type Faujasite Zeolite: Molecular Simulation and Experiment Article de journal
Dans: Journal of Physical Chemistry C, vol. 125, no. 35, p. 19405–19416, 2021.
@article{Ammouli2021,
title = {Insights into Water Adsorption in Potassium-Exchanged X-type Faujasite Zeolite: Molecular Simulation and Experiment},
author = {Tarik Ammouli and Jean-Louis Paillaud and Habiba Nouali and Regis Stephan and Marie-Christine Hanf and Philippe Sonnet and Irena Deroche},
doi = {10.1021/acs.jpcc.1c03593},
year = {2021},
date = {2021-09-01},
journal = {Journal of Physical Chemistry C},
volume = {125},
number = {35},
pages = {19405--19416},
abstract = {In the present study, we have combined several atomic-scale computational techniques [static lattice optimization, density functional theory (DFT), canonical Monte Carlo (MC), and Gibbs ensemble MC (GEMC)] with experiment in order to describe the adsorption of water in potassium-exchanged X-type faujasite. Indeed, by applying DFT calculations, we have evidenced a strongly heterogeneous adsorbent surface and classified the preferential adsorption sites at zero loading for water molecules. The sodalite cage was identified as the preferential location. Moreover, by applying the GEMC technique, we have successfully simulated the water adsorption isotherm in the K-X zeolite. Finally, through the canonical MC simulation, we have described the microscopic mechanisms of water adsorption within the K-X zeolite at various uptakes, ranging from low loading (8 H2O/unit cell) to saturation (240 H2O/unit cell). We have evidenced that at low loading, the sodalite cages host the major part of the adsorbed molecules, while at increasing hydration ratio, the water molecules locate more in supercages. At saturation, each sodalite cage accommodates more than three water molecules on average, whereas nearly 90% of water molecules are located within supercages. Finally, at any hydration ratio, the water molecules in supercages coordinate preferentially with potassium cations at crystallographic site III (or III') rather than at site II. Cations in site II start interacting with water molecules only at uptakes superior to 80 H2O molecules/unit cell, once all cations in site III (or III') are occupied by at least one water molecule.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Brahmi, Chaima; Benltifa, Mahmoud; Vaulot, Cyril; Michelin, Laure; Dumur, Frederic; Gkaniatsou, Effrosyni; Sicard, Clemence; Airoudj, Aissam; Morlet-Savary, Fabrice; Bousselmi, Latifa; Lalevee, Jacques
New Hybrid Fe-based MOFs/Polymer Composites for the Photodegradation of Organic Dyes Article de journal
Dans: Chemistryselect, vol. 6, no. 31, p. 8120–8132, 2021.
@article{Brahmi2021ab,
title = {New Hybrid Fe-based MOFs/Polymer Composites for the Photodegradation of Organic Dyes},
author = {Chaima Brahmi and Mahmoud Benltifa and Cyril Vaulot and Laure Michelin and Frederic Dumur and Effrosyni Gkaniatsou and Clemence Sicard and Aissam Airoudj and Fabrice Morlet-Savary and Latifa Bousselmi and Jacques Lalevee},
doi = {10.1002/slct.202102194},
year = {2021},
date = {2021-08-01},
journal = {Chemistryselect},
volume = {6},
number = {31},
pages = {8120--8132},
abstract = {Metals Organic Frameworks (MOFs) are promising crystalline, embrittled materials generally produced in powdering form with varied remarkably functionalities. In contrary, polymers are flexible and processable materials. Therefore, obtaining shaped solids gathering polymer malleability and MOFs properties such as their photocatalytic activities, have attracted many researchers' attention. This work, reports the successful fruitful incorporation of two different Fe-based MOFs into a polymer matrix via a facile and cheap photopolymerization process upon mild visible light irradiation at 405 nm. The as-prepared photocomposites display excellent stability and photocatalytic performance for several Acid Black degradation cycles. Hence, approximatively, 95 % of this model dye is decomposed by the two MIL-100(Fe)/polymer and MIL-88 A(Fe)/polymer composites under just 30 min of UV-Visible lamp irradiation. Incorporation of the MOFs into the polymer is confirmed by several techniques including Scanning Electron Microscopy (SEM), Energy-Dispersive X-ray analysis (EDX), Transmission Electron Microscopy (TEM), X- Ray Diffraction analysis (DRX), Fourier-Transform Infrared Spectroscopy (FTIR). Furthermore, these photocatalysts exhibit a high thermal stability, excellent rigidity and low band gap energy characterized by Thermogravimetric Analysis (TGA), Atomic Force Microscopy (AFM), Dynamic Mechanical Analysis (DMA) and UV-Visible diffuse reflectance spectroscopy, respectively.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mokbel, Haifaa; Noirbent, Guillaume; Gigmes, Didier; Dumur, Frederic; Lalevee, Jacques
Towards new NIR dyes for free radical photopolymerization processes Article de journal
Dans: Beilstein Journal of Organic Chemistry, vol. 17, p. 2067–2076, 2021.
@article{Mokbel2021,
title = {Towards new NIR dyes for free radical photopolymerization processes},
author = {Haifaa Mokbel and Guillaume Noirbent and Didier Gigmes and Frederic Dumur and Jacques Lalevee},
doi = {10.3762/bjoc.17.133},
year = {2021},
date = {2021-08-01},
journal = {Beilstein Journal of Organic Chemistry},
volume = {17},
pages = {2067--2076},
abstract = {The use of cheap and safe near-infrared (NIR) light is still the subject of intense research efforts but remains a huge challenge due to the associated low photon energy (wavelength from 0.78 to 2.5 mu m). In this study, a series of 17 NIR dyes mainly based on a well-established cyanine scaffold is proposed. Remarkably, 11 of them were never synthesized before. Markedly, noncharged struc-tures, negatively charged cyanine bearing Na+ as counter cation, and positively charged cyanines bearing (B(Ph)(4)(-)) or (I-) as counter anions were examined as promising NIR light photoinitiating systems. Excellent photoinitiating abilities were found for some reported dyes when used in combination with iodonium salt and amine. Markedly, photothermal effects with a huge heater behavior were also observed for different NIR dye structures. Interestingly, the synthesis of interpenetrating polymer networks (IPNs, e.g., for the polymerization of acrylate/epoxy monomer blends) can also be carried out upon NIR light with the proposed systems.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Sopronyi, Mihai; Nita, Cristina; Meins, Jean-Marc Le; Vidal, Loic; Jipa, Florin; Axente, Emanuel; Ghimbeu, Camelia Matei; Sima, Felix
Laser-assisted synthesis of carbon coatings with cobalt oxide nanoparticles embedded in gradient of composition and sizes Article de journal
Dans: Surface & Coatings Technology, vol. 419, p. 127301, 2021.
@article{Sopronyi2021a,
title = {Laser-assisted synthesis of carbon coatings with cobalt oxide nanoparticles embedded in gradient of composition and sizes},
author = {Mihai Sopronyi and Cristina Nita and Jean-Marc Le Meins and Loic Vidal and Florin Jipa and Emanuel Axente and Camelia Matei Ghimbeu and Felix Sima},
doi = {10.1016/j.surfcoat.2021.127301},
year = {2021},
date = {2021-08-01},
journal = {Surface & Coatings Technology},
volume = {419},
pages = {127301},
abstract = {We report on a new laser-assisted method for the synthesis of composite coatings consisting of cobalt oxide-embedded porous carbon with gradient of composition and sizes. Uniform carbon thin films containing cobalt oxide nanoparticles (CoO NPs) of various concentrations and sizes are obtained by Combinatorial Matrix-Assisted Pulsed Laser Evaporation (C-MAPLE) followed by a post-annealing treatment. Specifically, simultaneous pulsed laser irradiation of two concentric cryogenic targets was applied for gradient thin films assembling on solid substrates. Both targets contained environmentally friendly phloroglucinol/glyoxylic acid organic precursors and a template dissolved in an ethanol-chloroform mixture, whereas one of them enclosed, in addition, cobalt nitrate salt. Due to angular dispersion and crossing of the two vapor plumes during co-deposition process, thin composite polymeric nanocoatings containing Co nitrate salt were obtained. After subsequent thermal annealing treatment of samples at 600 degrees C, mesoporous carbon films exhibiting CoO NPs gradient distribution were then directly obtained onto the substrates. Carbon matrix formation was supported by EDX analyses and characteristic D, G and 2D bands present in the Raman spectra. Co NPs concentration varied from 3 to 32 wt% on the substrates with a minimum at furthest interaction point of the Co salt containing plume and substrate, while carbon concentration significantly decreased from 91 to 63 wt%. Oxygen amount was relatively constant at about 6 wt% for all coatings. The CoO NPs are homogenously dispersed in the carbon matrix whereas a tendency for aggregation is observed for high loadings. In addition, the CoO NPs size gradient distribution ranged from 3 to 8 nm with the minimum size correlating the minimum concentration.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Brahmi, Chaima; Benltifa, Mahmoud; Vaulot, Cyril; Michelin, Laure; Dumur, Frederic; Airoudj, Aissam; Morlet-Savary, Fabrice; Raveau, Bernard; Bousselmi, Latifa; Lalevee, Jacques
New hybrid perovskites/polymer composites for the photodegradation of organic dyes Article de journal
Dans: European Polymer Journal, vol. 157, p. 110641, 2021.
@article{Brahmi2021b,
title = {New hybrid perovskites/polymer composites for the photodegradation of organic dyes},
author = {Chaima Brahmi and Mahmoud Benltifa and Cyril Vaulot and Laure Michelin and Frederic Dumur and Aissam Airoudj and Fabrice Morlet-Savary and Bernard Raveau and Latifa Bousselmi and Jacques Lalevee},
doi = {10.1016/j.eurpolymj.2021.110641},
year = {2021},
date = {2021-08-01},
journal = {European Polymer Journal},
volume = {157},
pages = {110641},
abstract = {Recently, many researchers have focused their attentions on associating perovskites with polymers in order to enhance their processability and rigidity while protecting their interesting environmental properties. Therefore, this work reports the successful development of two different Perovskites/polymer composites via a simple, rapid, low-cost and eco-friendly photopolymerization process under mild visible Light Emitting Diode LED@405 nm irradiation. The as-synthesized composites exhibit excellent photocatalytic activity towards the removal of the Acid Black dye from water, reaching approximately 95% under just 30 min of UV light irradiation. The fruitful hybridization between the perovskites and the acrylate monomer allowed the collect and reuse of this photocatalyst for several successive cycles without external usual time-consuming methods. Furthermore, the new as-fabricated shaped materials were fully characterized by numerous characterization techniques including, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Energy Dispersive X-Ray Analysis (EDX), X-Ray Diffraction Analysis (XRD), Atomic Force Microscopy (AFM), Dynamic Mechanical Analysis (DMA) and Thermogravimetric Analysis (TGA), which have verified on one side the successful immo-bilization of the perovskites into the polymer and the structural stability of the photocatalysts after hybridization and in the other side the high rigidity and thermal stability of the obtained molded composites.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Martins, Elisama S.; Espindola, Ariane; Britos, Tatiane N.; Chagas, Camila; Barbosa, Emerson; Castro, Carlos E.; Fonseca, Fernando L. A.; Haddad, Paula S.
Potential Use of DMSA-Containing Iron Oxide Nanoparticles as Magnetic Vehicles against the COVID-19 Disease Article de journal
Dans: Chemistryselect, vol. 6, no. 31, p. 7931–7935, 2021.
@article{Martins2021b,
title = {Potential Use of DMSA-Containing Iron Oxide Nanoparticles as Magnetic Vehicles against the COVID-19 Disease},
author = {Elisama S. Martins and Ariane Espindola and Tatiane N. Britos and Camila Chagas and Emerson Barbosa and Carlos E. Castro and Fernando L. A. Fonseca and Paula S. Haddad},
doi = {10.1002/slct.202101900},
year = {2021},
date = {2021-08-01},
journal = {Chemistryselect},
volume = {6},
number = {31},
pages = {7931--7935},
abstract = {Iron oxide magnetic nanoparticles have been employed as potential vehicles for a large number of biomedical applications, such as drug delivery. This article describes the synthesis, characterization and in vitro cytotoxic in COVID-19 cells evaluation of DMSA superparamagnetic iron oxide magnetic nanoparticles. Magnetite (Fe3O4) nanoparticles were synthesized by co-precipitation of iron salts and coated with meso-2,3-dimercaptosuccinic acid (DMSA) molecule. Structural and morphological characterizations were performed by X-ray diffraction (XRD), Fourier transformed infrared (FT-IR), magnetic measurements (SQUID), transmission electron microscopy (TEM), and dynamic light scattering (DLS). Our results demonstrate that the nanoparticles have a mean diameter of 12 nm in the solid-state and are superparamagnetic at room temperature. There is no toxicity of SPIONS-DMSA under the cells of patients with COVID-19. Taken together the results show that DMSA- Fe3O4 are good candidates as nanocarriers in the alternative treatment of studied cells.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Chaabouni, Emna; Tkachenko, Vitalii; Vidal, Loic; Allouche, Noureddine; Chemtob, Abraham
Fully photodegradable block copolymer nanoparticles for dual release of cargo and radicals Article de journal
Dans: EUROPEAN POLYMER JOURNAL, vol. 156, 2021, ISSN: 0014-3057.
@article{Chaabouni2021b,
title = {Fully photodegradable block copolymer nanoparticles for dual release of cargo and radicals},
author = {Emna Chaabouni and Vitalii Tkachenko and Loic Vidal and Noureddine Allouche and Abraham Chemtob},
doi = {10.1016/j.eurpolymj.2021.110633},
issn = {0014-3057},
year = {2021},
date = {2021-08-01},
journal = {EUROPEAN POLYMER JOURNAL},
volume = {156},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Sopronyi, Mihai; Nita, Cristina; Meins, Jean-Marc Le; Vidal, Loic; Jipa, Florin; Axente, Emanuel; Ghimbeu, Camelia Matei; Sima, Felix
Laser-assisted synthesis of carbon coatings with cobalt oxide nanoparticles embedded in gradient of composition and sizes Article de journal
Dans: SURFACE & COATINGS TECHNOLOGY, vol. 419, 2021, ISSN: 0257-8972.
@article{Sopronyi2021b,
title = {Laser-assisted synthesis of carbon coatings with cobalt oxide nanoparticles embedded in gradient of composition and sizes},
author = {Mihai Sopronyi and Cristina Nita and Jean-Marc Le Meins and Loic Vidal and Florin Jipa and Emanuel Axente and Camelia Matei Ghimbeu and Felix Sima},
doi = {10.1016/j.surfcoat.2021.127301},
issn = {0257-8972},
year = {2021},
date = {2021-08-01},
journal = {SURFACE & COATINGS TECHNOLOGY},
volume = {419},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zhou, Ruchun; Pan, Haiyan; Wan, Decheng; Malval, Jean-Pierre; Jin, Ming
Bicarbazole-based oxime esters as novel efficient photoinitiators for photopolymerization under UV-Vis LEDs Article de journal
Dans: PROGRESS IN ORGANIC COATINGS, vol. 157, 2021, ISSN: 0300-9440.
@article{Zhou2021d,
title = {Bicarbazole-based oxime esters as novel efficient photoinitiators for photopolymerization under UV-Vis LEDs},
author = {Ruchun Zhou and Haiyan Pan and Decheng Wan and Jean-Pierre Malval and Ming Jin},
doi = {10.1016/j.porgcoat.2021.106306},
issn = {0300-9440},
year = {2021},
date = {2021-08-01},
journal = {PROGRESS IN ORGANIC COATINGS},
volume = {157},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Tahraoui, Zakaria; Nouali, Habiba; Marichal, Claire; Forler, Patrice; Klein, Julien; Daou, T. Jean
Zeolite-Polymer Composite Materials as Water Scavenger Article de journal
Dans: MOLECULES, vol. 26, no. 16, 2021.
@article{Tahraoui2021b,
title = {Zeolite-Polymer Composite Materials as Water Scavenger},
author = {Zakaria Tahraoui and Habiba Nouali and Claire Marichal and Patrice Forler and Julien Klein and T. Jean Daou},
doi = {10.3390/molecules26164815},
year = {2021},
date = {2021-08-01},
journal = {MOLECULES},
volume = {26},
number = {16},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Petithory, Tatiana; Pieuchot, Laurent; Josien, Ludovic; Ponche, Arnaud; Anselme, Karine; Vonna, Laurent
Size-Dependent Internalization Efficiency of Macrophages from Adsorbed Nanoparticle-Based Monolayers Article de journal
Dans: NANOMATERIALS, vol. 11, no. 8, 2021.
@article{Petithory2021b,
title = {Size-Dependent Internalization Efficiency of Macrophages from Adsorbed Nanoparticle-Based Monolayers},
author = {Tatiana Petithory and Laurent Pieuchot and Ludovic Josien and Arnaud Ponche and Karine Anselme and Laurent Vonna},
doi = {10.3390/nano11081963},
year = {2021},
date = {2021-08-01},
journal = {NANOMATERIALS},
volume = {11},
number = {8},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mcheik, Zeinab; Pinard, Ludovic; Toufaily, Joumana; Hamieh, Tayssir; Daou, T. Jean
Synthesis of Hierarchical MOR-Type Zeolites with Improved Catalytic Properties Article de journal
Dans: MOLECULES, vol. 26, no. 15, 2021.
@article{Mcheik2021b,
title = {Synthesis of Hierarchical MOR-Type Zeolites with Improved Catalytic Properties},
author = {Zeinab Mcheik and Ludovic Pinard and Joumana Toufaily and Tayssir Hamieh and T. Jean Daou},
doi = {10.3390/molecules26154508},
year = {2021},
date = {2021-08-01},
journal = {MOLECULES},
volume = {26},
number = {15},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fawaz, Elyssa G.; Salam, Darine A.; Rigolet, Severinne S.; Daou, T. Jean
Hierarchical Zeolites as Catalysts for Biodiesel Production from Waste Frying Oils to Overcome Mass Transfer Limitations Article de journal
Dans: MOLECULES, vol. 26, no. 16, 2021.
@article{Fawaz2021b,
title = {Hierarchical Zeolites as Catalysts for Biodiesel Production from Waste Frying Oils to Overcome Mass Transfer Limitations},
author = {Elyssa G. Fawaz and Darine A. Salam and Severinne S. Rigolet and T. Jean Daou},
doi = {10.3390/molecules26164879},
year = {2021},
date = {2021-08-01},
journal = {MOLECULES},
volume = {26},
number = {16},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Otmakhova, O. A.; Piryazev, A. A.; Bondarenko, G. N.; Shandryuk, G. A.; Maryasevskaya, A. V.; Merekalov, A. S.; Ivanov, D. A.; Talroze, R. V.
New complexes of liquid crystal discotic triphenylenes: induction of the double gyroid phase Article de journal
Dans: Physical Chemistry Chemical Physics, vol. 23, no. 31, p. 16827–16836, 2021.
@article{Otmakhova2021,
title = {New complexes of liquid crystal discotic triphenylenes: induction of the double gyroid phase},
author = {O. A. Otmakhova and A. A. Piryazev and G. N. Bondarenko and G. A. Shandryuk and A. V. Maryasevskaya and A. S. Merekalov and D. A. Ivanov and R. V. Talroze},
doi = {10.1039/d1cp00660f},
year = {2021},
date = {2021-08-01},
journal = {Physical Chemistry Chemical Physics},
volume = {23},
number = {31},
pages = {16827--16836},
abstract = {Electron donor-acceptor liquid crystals have been attracting considerable attention due to possible applications in optoelectronics and photonics. The creation of such charge transfer complexes is a powerful and flexible instrument for modifying the structures and properties compared to those of the initial components. In the present work, such an approach is exemplified on new complexes formed via non-covalent interactions of triphenylene discotics, namely, 2,3,6,7,10,11-hexakis(pentyloxy) triphenylene (H5T) and 2-(acryloyloxypropyloxy)-3,6,7,10,11-pentapentylox-triphenylene (TPh-3A), with an electron acceptor, beta-(2,4,7-trinitro-9-fluorenylideneaminooxy) propionic acid (TNF-carb). The structure of thin supported films of H5T, TPh-3A and their blends with TNF-carb was investigated by grazing-incidence wide-angle X-ray scattering using a synchrotron source. At room temperature, the pristine discotics crystallize in orthorhombic unit cells whereas the self-assembly of H5T and TPh-3A with TNF-carb results in a double gyroid and hexagonal phases, respectively. Formation of the double gyroid phase with the lattice parameter of 36.5 angstrom is driven by phase separation between the aromatic and alkyl regions of the system. It is supposed that the TNF-carb molecules of the complex are positioned in the nodes of the structure while the H5T molecules are located in the struts adjoining the nodes via triple junctions. For the hexagonal crystal of the TPh-3A/TNF-carb complex, the acceptor molecules are likely located in the interstices between the neighboring supramolecular columns of TPh-3A. The molecular structures of the blends were also explored by means of FTIR spectroscopy. A detailed FTIR spectra analysis illustrates fine changes in inter-molecular bonds. For example, the initially dimerized acceptor molecules totally disappear in the complex structures whereas in TPh-3A/TNF-carb additional H-bonds between the carboxylate group in TNF-carb and the ester group of TPh-3A form. The experimental data allows putting forward possible molecular models of the complex structures.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Tahraoui, Zakaria; Nouali, Habiba; Marichal, Claire; Forler, Patrice; Klein, Julien; Daou, T. Jean
Zeolite-Polymer Composite Materials as Water Scavenger Article de journal
Dans: Molecules, vol. 26, no. 16, p. 4815, 2021.
@article{Tahraoui2021,
title = {Zeolite-Polymer Composite Materials as Water Scavenger},
author = {Zakaria Tahraoui and Habiba Nouali and Claire Marichal and Patrice Forler and Julien Klein and T. Jean Daou},
doi = {10.3390/molecules26164815},
year = {2021},
date = {2021-08-01},
journal = {Molecules},
volume = {26},
number = {16},
pages = {4815},
abstract = {The influence of the charge compensating cation nature (Na+, Mg2+) on the water adsorption properties of LTA-type zeolites used as filler in composite materials (zeolite/polymers) was investigated. Large scale cation exchanges were performed on zeolite powder at 80 degrees C for 2 h using 1 M magnesium chloride (MgCl2) aqueous solutions. XRF, ICP, and EDX analyses indicate a successful cationic exchange process without the modification of the zeolite structure as shown by XRD and solid-state NMR analyses. Composite materials (granulates and molded parts) were manufactured using to extrusion and injection processes. In the case of MgA zeolite, nitrogen adsorption-desorption experiments allowed us to measure a microporous volume, unlike NaA zeolite, which is non-porous to nitrogen probe molecule. SEM and EDX analyses highlighted the homogeneous distribution of zeolite crystals into the polymer matrix. Water adsorption capacities confirmed that the trends observed in the zeolite powder samples are preserved after dragging zeolites into composite formulations. Granulates and molded parts composite samples containing the magnesium exchanged zeolite showed an increase of their water adsorption capacity up to +27% in comparison to composite samples containing the non-exchanged zeolite. The MgA composite is more promising for water decontamination applications due to its higher water adsorption properties than the NaA composite.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Petithory, Tatiana; Pieuchot, Laurent; Josien, Ludovic; Ponche, Arnaud; Anselme, Karine; Vonna, Laurent
Size-Dependent Internalization Efficiency of Macrophages from Adsorbed Nanoparticle-Based Monolayers Article de journal
Dans: Nanomaterials, vol. 11, no. 8, p. 1963, 2021.
@article{Petithory2021,
title = {Size-Dependent Internalization Efficiency of Macrophages from Adsorbed Nanoparticle-Based Monolayers},
author = {Tatiana Petithory and Laurent Pieuchot and Ludovic Josien and Arnaud Ponche and Karine Anselme and Laurent Vonna},
doi = {10.3390/nano11081963},
year = {2021},
date = {2021-08-01},
journal = {Nanomaterials},
volume = {11},
number = {8},
pages = {1963},
abstract = {Functional coatings based on the assembly of submicrometric or nanoparticles are found in many applications in the biomedical field. However, these nanoparticle-based coatings are particularly fragile since they could be exposed to cells that are able to internalize nanoparticles. Here, we studied the efficiency of RAW 264.7 murine macrophages to internalize physisorbed silica nanoparticles as a function of time and particle size. This cell internalization efficiency was evaluated from the damages induced by the cells in the nanoparticle-based monolayer on the basis of scanning electron microscopy and confocal laser scanning microscopy observations. The internalization efficiency in terms of the percentage of nanoparticles cleared from the substrate is characterized by two size-dependent regimes. Additionally, we highlighted that a delay before internalization occurs, which increases with decreasing adsorbed nanoparticle size. This internalization is characterized by a minimal threshold that corresponds to 35 nm nanoparticles that are not internalized during the 12-h incubation considered in this work.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mcheik, Zeinab; Pinard, Ludovic; Toufaily, Joumana; Hamieh, Tayssir; Daou, T. Jean
Synthesis of Hierarchical MOR-Type Zeolites with Improved Catalytic Properties Article de journal
Dans: Molecules, vol. 26, no. 15, p. 4508, 2021.
@article{Mcheik2021,
title = {Synthesis of Hierarchical MOR-Type Zeolites with Improved Catalytic Properties},
author = {Zeinab Mcheik and Ludovic Pinard and Joumana Toufaily and Tayssir Hamieh and T. Jean Daou},
doi = {10.3390/molecules26154508},
year = {2021},
date = {2021-08-01},
journal = {Molecules},
volume = {26},
number = {15},
pages = {4508},
abstract = {Hierarchical MOR-type zeolites were synthesized in the presence of hexadecyltrimethylammonium bromide (CTAB) as a porogen agent. XRD proved that the concentration of CTAB in the synthesis medium plays an essential role in forming pure hierarchical MOR-type material. Above a CTAB concentration of 0.04 mol center dot L-1, amorphous materials are observed. These hierarchical mordenite possess a higher porous volume compared to its counterpart conventional micrometer crystals. Nitrogen sorption showed the presence of mesoporosity for all mordenite samples synthesized in the presence of CTAB. The creation of mesopores due to the presence of CTAB in the synthesis medium does not occur at the expense of zeolite micropores. In addition, mesoporous volume and BET surface seem to increase upon the increase of CTAB concentration in the synthesis medium. The Si/Al ratio of the zeolite framework can be increased from 5.5 to 9.1 by halving the aluminum content present in the synthesis gel. These synthesized hierarchical MOR-type zeolites possess an improved catalytic activity for n-hexane cracking compared to large zeolite crystals obtained in the absence of CTAB.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fawaz, Elyssa G.; Salam, Darine A.; Rigolet, Severinne S.; Daou, T. Jean
Hierarchical Zeolites as Catalysts for Biodiesel Production from Waste Frying Oils to Overcome Mass Transfer Limitations Article de journal
Dans: Molecules, vol. 26, no. 16, p. 4879, 2021.
@article{Fawaz2021,
title = {Hierarchical Zeolites as Catalysts for Biodiesel Production from Waste Frying Oils to Overcome Mass Transfer Limitations},
author = {Elyssa G. Fawaz and Darine A. Salam and Severinne S. Rigolet and T. Jean Daou},
doi = {10.3390/molecules26164879},
year = {2021},
date = {2021-08-01},
journal = {Molecules},
volume = {26},
number = {16},
pages = {4879},
abstract = {Hierarchical crystals with short diffusion path, conventional microcrystals and nanocrystals of ZSM-5 zeolites were used for biodiesel production from waste frying oils and were assessed for their catalytic activity in regard to their pore structure and acidic properties. Produced zeolites were characterized using XRD, nitrogen adsorption-desorption, SEM, TEM, X-ray fluorescence, and FTIR. Pore size effect on molecular diffusion limitation was assessed by Thiele modulus calculations and turnover frequencies (TOF) were used to discuss the correlation between acidic character and catalytic performance of the zeolites. Owing to the enhanced accessibility and mass transfer of triglycerides and free fatty acids to the elemental active zeolitic structure, the catalytic performance of nanosponge and nanosheet hierarchical zeolites was the highest. A maximum yield of 48.29% was reached for the transesterification of waste frying oils (WFOs) using HZSM-5 nanosheets at 12:1 methanol to WFOs molar ratio, 180 degrees C, 10 wt % catalyst loading, and 4 h reaction time. Although HZSM-5 nanosponges achieved high conversions, these more hydrophilic zeolites did not function according to their entire acidic strength in comparison to HZSM-5 nanosheets. NSh-HZSM5 catalytic performance was still high after 4 consecutive cycles as a result of the zeolite regeneration.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Chaabouni, Emna; Tkachenko, Vitalii; Vidal, Loic; Allouche, Noureddine; Chemtob, Abraham
Fully photodegradable block copolymer nanoparticles for dual release of cargo and radicals Article de journal
Dans: European Polymer Journal, vol. 156, p. 110633, 2021.
@article{Chaabouni2021,
title = {Fully photodegradable block copolymer nanoparticles for dual release of cargo and radicals},
author = {Emna Chaabouni and Vitalii Tkachenko and Loic Vidal and Noureddine Allouche and Abraham Chemtob},
doi = {10.1016/j.eurpolymj.2021.110633},
year = {2021},
date = {2021-08-01},
journal = {European Polymer Journal},
volume = {156},
pages = {110633},
abstract = {When exposed to radiation, photo-responsive block copolymer nanoparticles disassemble to liberate a possible carried guest. However, the particle disruption is rarely accompanied by a polymer chain disintegration into molecular fragments, that would facilitate clearance from the body. We describe herein a novel class of fully photodegradable all-acrylic poly(hydroxyethyl acrylate)-b-poly(o-nitrobenzyl acrylate) (PHEA-PNBA) nanoparticles. Their synthesis proceeds by dispersion polymerization-induced self-assembly (PISA) based on a reversible addition-fragmentation chain transfer mechanism. The self-immolation mechanism is initiated via a dual H-abstraction by the electronically excited o-nitrobenzyl pendant group, first, from the adjacent CH2, second, from CH of the polyacrylate chains. The former results in the release of the protecting group, while the latter initiates a cascade of reactions that fragment the whole polymer backbone. Simultaneous chain scission and cleavage of o-nitrobenzyl group combine in turn to induce a fast and complete degradation of the copolymer particles. Synthesis, structural and colloidal characterization of the diblock copolymer nanoparticles, photochemical mechanism governing self-immolation are described. Emphasis is placed on understanding the reaction parameters which are important in controlling degradation rates, in particular nature of continuous phase and degree of polymerization of the PNBA block. UV exposure is exploited to release a model guest (Nile red) from the particles. Additionally, the burst release of free radicals accompanying the chain degradation can serve to decompose a target molecule (methylene blue).},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Martins, Elisama S.; Espindola, Ariane; Britos, Tatiane N.; Chagas, Camila; Barbosa, Emerson; Castro, Carlos E.; Fonseca, Fernando L. A.; Haddad, Paula S.
Potential Use of DMSA-Containing Iron Oxide Nanoparticles as Magnetic Vehicles against the COVID-19 Disease Article de journal
Dans: Chemistryselect, vol. 6, no. 31, p. 7931–7935, 2021.
@article{Martins2021,
title = {Potential Use of DMSA-Containing Iron Oxide Nanoparticles as Magnetic Vehicles against the COVID-19 Disease},
author = {Elisama S. Martins and Ariane Espindola and Tatiane N. Britos and Camila Chagas and Emerson Barbosa and Carlos E. Castro and Fernando L. A. Fonseca and Paula S. Haddad},
doi = {10.1002/slct.202101900},
year = {2021},
date = {2021-08-01},
journal = {Chemistryselect},
volume = {6},
number = {31},
pages = {7931--7935},
abstract = {Iron oxide magnetic nanoparticles have been employed as potential vehicles for a large number of biomedical applications, such as drug delivery. This article describes the synthesis, characterization and in vitro cytotoxic in COVID-19 cells evaluation of DMSA superparamagnetic iron oxide magnetic nanoparticles. Magnetite (Fe3O4) nanoparticles were synthesized by co-precipitation of iron salts and coated with meso-2,3-dimercaptosuccinic acid (DMSA) molecule. Structural and morphological characterizations were performed by X-ray diffraction (XRD), Fourier transformed infrared (FT-IR), magnetic measurements (SQUID), transmission electron microscopy (TEM), and dynamic light scattering (DLS). Our results demonstrate that the nanoparticles have a mean diameter of 12 nm in the solid-state and are superparamagnetic at room temperature. There is no toxicity of SPIONS-DMSA under the cells of patients with COVID-19. Taken together the results show that DMSA- Fe3O4 are good candidates as nanocarriers in the alternative treatment of studied cells.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zhou, Ruchun; Pan, Haiyan; Wan, Decheng; Malval, Jean-Pierre; Jin, Ming
Bicarbazole-based oxime esters as novel efficient photoinitiators for photopolymerization under UV-Vis LEDs Article de journal
Dans: Progress in Organic Coatings, vol. 157, p. 106306, 2021.
@article{Zhou2021,
title = {Bicarbazole-based oxime esters as novel efficient photoinitiators for photopolymerization under UV-Vis LEDs},
author = {Ruchun Zhou and Haiyan Pan and Decheng Wan and Jean-Pierre Malval and Ming Jin},
doi = {10.1016/j.porgcoat.2021.106306},
year = {2021},
date = {2021-08-01},
journal = {Progress in Organic Coatings},
volume = {157},
pages = {106306},
abstract = {Five novel oxime ester type photoinitiators based on the bicarbazole structure were designed and synthesized to extend the absorption wavelength range of photoinitiators to the near-ultraviolet-visible (UV-vis) region and ensure the high efficiency of photoinduced polymerization. Introducing alkyl chains with different lengths and/or cyclizations and further alpha-carbonyl groups influenced absorption and photolysis properties. The rationality of the designed molecules was proven by using UV-vis spectra, and liquid chromatography-mass spectrometry (LC-MS) and in situ 1H NMR experiments were also performed to explain the mechanism of photoinduced degradation. Importantly, the photopolymerization and storage stabilities of the optimized photoinitiators in photocuring formulations were also tested and were found to be better than those of commercial photoinitiators, e.g., OXE 02.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Nita, Cristina; Zhang, Biao; Dentzer, Joseph; Ghimbeu, Camelia Matei
Hard carbon derived from coconut shells, walnut shells, and corn silk biomass waste exhibiting high capacity for Na-ion batteries Article de journal
Dans: JOURNAL OF ENERGY CHEMISTRY, vol. 58, p. 207-218, 2021, ISSN: 2095-4956.
@article{Nita2021b,
title = {Hard carbon derived from coconut shells, walnut shells, and corn silk biomass waste exhibiting high capacity for Na-ion batteries},
author = {Cristina Nita and Biao Zhang and Joseph Dentzer and Camelia Matei Ghimbeu},
doi = {10.1016/j.jechem.2020.08.065},
issn = {2095-4956},
year = {2021},
date = {2021-07-01},
journal = {JOURNAL OF ENERGY CHEMISTRY},
volume = {58},
pages = {207-218},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Katsigiannopoulos, Dimitrios; Grana, Eftychia; Tsitoni, Konstantina; Moutsios, Ioannis; Manesi, Gkreti-Maria; Nikitina, Evgeniia A.; Chalmpes, Nikolaos; Moschovas, Dimitrios; Gournis, Dimitrios; Ivanov, Dimitri A.; Avgeropoulos, Apostolos
Structure/Properties Relationship of Anionically Synthesized Diblock Copolymers ``Grafted to'' Chemically Modified Graphene Article de journal
Dans: POLYMERS, vol. 13, no. 14, 2021.
@article{Katsigiannopoulos2021b,
title = {Structure/Properties Relationship of Anionically Synthesized Diblock Copolymers ``Grafted to'' Chemically Modified Graphene},
author = {Dimitrios Katsigiannopoulos and Eftychia Grana and Konstantina Tsitoni and Ioannis Moutsios and Gkreti-Maria Manesi and Evgeniia A. Nikitina and Nikolaos Chalmpes and Dimitrios Moschovas and Dimitrios Gournis and Dimitri A. Ivanov and Apostolos Avgeropoulos},
doi = {10.3390/polym13142308},
year = {2021},
date = {2021-07-01},
journal = {POLYMERS},
volume = {13},
number = {14},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jellali, Salah; Khiari, Besma; Usman, Muhammad; Hamdi, Helmi; Charabi, Yassine; Jeguirim, Mejdi
Sludge-derived biochars: A review on the influence of synthesis conditions on pollutants removal efficiency from wastewaters Article de journal
Dans: RENEWABLE & SUSTAINABLE ENERGY REVIEWS, vol. 144, 2021, ISSN: 1364-0321.
@article{Jellali2021bb,
title = {Sludge-derived biochars: A review on the influence of synthesis conditions on pollutants removal efficiency from wastewaters},
author = {Salah Jellali and Besma Khiari and Muhammad Usman and Helmi Hamdi and Yassine Charabi and Mejdi Jeguirim},
doi = {10.1016/j.rser.2021.111068},
issn = {1364-0321},
year = {2021},
date = {2021-07-01},
journal = {RENEWABLE & SUSTAINABLE ENERGY REVIEWS},
volume = {144},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Sun, Ke; Xiao, Pu; Dumur, Frederic; Lalevee, Jacques
Organic dye-based photoinitiating systems for visible-light-induced photopolymerization Article de journal
Dans: Journal of Polymer Science, vol. 59, no. 13, p. 1338–1389, 2021.
@article{Sun2021,
title = {Organic dye-based photoinitiating systems for visible-light-induced photopolymerization},
author = {Ke Sun and Pu Xiao and Frederic Dumur and Jacques Lalevee},
doi = {10.1002/pol.20210225},
year = {2021},
date = {2021-07-01},
journal = {Journal of Polymer Science},
volume = {59},
number = {13},
pages = {1338--1389},
abstract = {Even though many organic dyes have been reported as photoinitiators/photosensitizers for free radical polymerization in the literature, the design and development of novel photoinitiating systems based on organic dyes adaptable for visible light irradiation, for example, 405 nm LED and sunlight still remains challenging. Recently, major achievements in the development of high-performance photoinitiating systems based on organic dyes as light-harvesting compounds and their uses as photoinitiators for photopolymerization under visible-light irradiation have clearly emerged, giving rise to abundant literature. In this review, an overview of the recently synthesized chromophores belonging to various families of organic dyes and used as photoinitiators of polymerization during the 2018-2021 period are presented and classified. Recent works have resulted in the development of new chromophores exhibiting remarkable visible light absorption properties and excellent photoinitiation abilities upon irradiation with LEDs and/or sunlight in free radical photopolymerization processes. These developments notably indicate that sunlight has the advantages of being a cheap, unlimited, broad emission spectrum, and energy-saving light source capable to be an efficient substitute to artificial light sources. The newly developed dye-based photoinitiating systems designed to initiate visible-light-induced photopolymerization processes are likely to expand the scope of application of photopolymerization in modern sciences and technologies.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Nita, Cristina; Zhang, Biao; Dentzer, Joseph; Ghimbeu, Camelia Matei
Hard carbon derived from coconut shells, walnut shells, and corn silk biomass waste exhibiting high capacity for Na-ion batteries Article de journal
Dans: Journal of Energy Chemistry, vol. 58, p. 207–218, 2021.
@article{Nita2021,
title = {Hard carbon derived from coconut shells, walnut shells, and corn silk biomass waste exhibiting high capacity for Na-ion batteries},
author = {Cristina Nita and Biao Zhang and Joseph Dentzer and Camelia Matei Ghimbeu},
doi = {10.1016/j.jechem.2020.08.065},
year = {2021},
date = {2021-07-01},
journal = {Journal of Energy Chemistry},
volume = {58},
pages = {207--218},
abstract = {In recent years, hard carbon materials have gained significant interest as anode materials for Na-ion batteries. Biomass waste is considered one of the most interesting, renewable, available, and cost-effective precursor to obtain hard carbon (HC); however, HC properties must be finely tuned to achieve performance comparable to those provided by Li-ion batteries. In this work, three biomass wastes (coconut shells, walnut shells, and corn silk) were evaluated as potential precursors for HC preparation involving a pyrolysis process and subsequent acid washing to remove the inorganic impurities. All obtained materials exhibited low and similar specific surface areas (<10 m(2).g(-1)), but they presented different structures and surface functionalities. The walnut shell HC possessed a lower amount of inorganic impurities and oxygen-based functional groups compared to the coconut shell and corn silk HCs, leading to higher initial coulombic efficiency (iCE). The structural organization was higher in the case of the walnut shell HC, while the corn silk HC revealed a heterogeneous structure combining both highly disordered carbon and localized graphitized domains. All HCs delivered high initial reversible capacities between 293 and 315 mAh g(-1) at 50 mA g(-1) current rate, which remained rather stable during long-term cycling. The best capacity (293 mAh g(-1) after 100 charge/discharge cycles) and highest capacity retention (93%) was achieved in walnut HCs in half-cells, which could be associated with its higher sp(2) C content, better organized structure, and fewer impurities. An "adsorption-insertion" Na storage mechanism is suggested based on several techniques. The walnut HCs exhibited an attractive energy density of 279 Wh/kg when tested in full cells. (C) 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Monna, Sameh; Juaidi, Adel; Abdallah, Ramez; Albatayneh, Aiman; Dutournie, Patrick; Jeguirim, Mejdi
Towards Sustainable Energy Retrofitting, a Simulation for Potential Energy Use Reduction in Residential Buildings in Palestine Article de journal
Dans: Energies, vol. 14, no. 13, p. 3876, 2021.
@article{Monna2021,
title = {Towards Sustainable Energy Retrofitting, a Simulation for Potential Energy Use Reduction in Residential Buildings in Palestine},
author = {Sameh Monna and Adel Juaidi and Ramez Abdallah and Aiman Albatayneh and Patrick Dutournie and Mejdi Jeguirim},
doi = {10.3390/en14133876},
year = {2021},
date = {2021-07-01},
journal = {Energies},
volume = {14},
number = {13},
pages = {3876},
abstract = {Since buildings are one of the major contributors to global warming, efforts should be intensified to make them more energy-efficient, particularly existing buildings. This research intends to analyze the energy savings from a suggested retrofitting program using energy simulation for typical existing residential buildings. For the assessment of the energy retrofitting program using computer simulation, the most commonly utilized residential building types were selected. The energy consumption of those selected residential buildings was assessed, and a baseline for evaluating energy retrofitting was established. Three levels of retrofitting programs were implemented. These levels were ordered by cost, with the first level being the least costly and the third level is the most expensive. The simulation models were created for two different types of buildings in three different climatic zones in Palestine. The findings suggest that water heating, space heating, space cooling, and electric lighting are the highest energy consumers in ordinary houses. Level one measures resulted in a 19-24 percent decrease in energy consumption due to reduced heating and cooling loads. The use of a combination of levels one and two resulted in a decrease of energy consumption for heating, cooling, and lighting by 50-57%. The use of the three levels resulted in a decrease of 71-80% in total energy usage for heating, cooling, lighting, water heating, and air conditioning.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jellali, Salah; Khiari, Besma; Usman, Muhammad; Hamdi, Helmi; Charabi, Yassine; Jeguirim, Mejdi
Sludge-derived biochars: A review on the influence of synthesis conditions on pollutants removal efficiency from wastewaters Article de journal
Dans: Renewable & Sustainable Energy Reviews, vol. 144, p. 111068, 2021.
@article{Jellali2021b,
title = {Sludge-derived biochars: A review on the influence of synthesis conditions on pollutants removal efficiency from wastewaters},
author = {Salah Jellali and Besma Khiari and Muhammad Usman and Helmi Hamdi and Yassine Charabi and Mejdi Jeguirim},
doi = {10.1016/j.rser.2021.111068},
year = {2021},
date = {2021-07-01},
journal = {Renewable & Sustainable Energy Reviews},
volume = {144},
pages = {111068},
abstract = {Pyrolysis is a thermochemical process that permits the conversion of biomasses into energy (bio-oil and biogas) and a solid residue called biochar. The generation of biochar from lignocellulosic materials has been, for longtime, the predominant research focus. Wastewater treatment plants produce huge amounts of sludge biomass and there exists an increasing evidence for their possible reuse as a promising pyrolysis feedstock in recent literature. Though the valorization of biochars generated from lignocellulosic biomasses has been the subject of many reviews, there exists a critical knowledge gap regarding the effect of synthesis conditions of the sludge-derived biochars (SDBs) on their efficiency in the treatment of wastewater. This review critically analyzes the available literature related to SDBs characteristics and application to adsorb inorganic and organic pollutants from effluents. The physico-chemical properties and adsorption efficiency of SDBs are mainly tuned by the nature of raw sludge, pyrolysis conditions, and pre/post-treatments. Indeed, biochars originating from digested sludge have better adsorption capacities towards nutrients and heavy metals compared to those obtained from the nondigested sludge. The nutrients recovery from urban wastewater could be significantly improved when the raw sludge is mixed with lignocellulosic biomass and Mg/Ca rich materials. On the other hand, the chemical activation of sludge at reagent/sludge ratios higher than 2:1 permits to generate SDBs with adsorption capacities comparable and even better than commercial activated carbons. Moreover, the embedment/coating of SDBs with specific nanomaterials and tailored functional groups could significantly improve the adsorption capacities of various organic toxic pollutants and at the same time enhance their chemical degradation. The effect of the nature of target pollutants (organic or inorganic) on the underlying adsorption mechanisms by SDBs was also deeply reviewed. Finally, this paper provides the main application challenges as well as insights regarding the promising future directions for SDBs research and development.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Rahal, Mahmoud; Graff, Bernadette; Toufaily, Joumana; Hamieh, Tayssir; Dumur, Frederic; Lalevee, Jacques
Design of keto-coumarin based photoinitiator for Free Radical Photopolymerization: Towards 3D printing and photocomposites applications Article de journal
Dans: European Polymer Journal, vol. 154, p. 110559, 2021.
@article{Rahal2021b,
title = {Design of keto-coumarin based photoinitiator for Free Radical Photopolymerization: Towards 3D printing and photocomposites applications},
author = {Mahmoud Rahal and Bernadette Graff and Joumana Toufaily and Tayssir Hamieh and Frederic Dumur and Jacques Lalevee},
doi = {10.1016/j.eurpolymj.2021.110559},
year = {2021},
date = {2021-07-01},
journal = {European Polymer Journal},
volume = {154},
pages = {110559},
abstract = {In this article, ten organic dyes based on keto-coumarin (KC) derivatives (MeO-Coum1, MeO-Coum10) have been synthesized and characterized as high performance photoinitiators for the Free Radical Photopolymerization (FRP) of acrylates upon visible light exposure using a Light emitting diode (LED) @405 nm. The addition of Iodonium salt (Iod), amine [ethyl dimethylaminobenzoate (EDB) or N-phenylglycine (NPG)] and Iod/NPG couple in the photocurable resins have been carried out in order to prove their influences on the improvement on the photoinitiating abilities of keto-coumarins. The different dyes showed a very high ability to initiate the Free Radical Photopolymerization by introduction of these additives, using Two or Three-component photoinitiating systems based on MeO-Coum/Iod or amine (0.1% or 0.4%/1% w/w) or MeO-Coum/Iod/NPG (0.1% or 0.4%/ 1%/1% w/w/w) respectively. In fact, these photoinitiators have been tested in different applications. For example: in direct laser write to generate 3D patterns using a laser diode @405 nm, or for the photocomposite synthesis based on glass fibers. To characterize the initiation ability and to explain the reaction mechanisms in the photoinitiation step, several techniques have been used, such as UV-visible spectroscopy and steady state photolysis, fluorescence emission, RT-FTIR and cyclic voltammetry experiments.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Brahmi, Chaima; Benltifa, Mahmoud; Vaulot, Cyril; Michelin, Laure; Dumur, Frederic; Millange, Franck; Frigoli, Michel; Airoudj, Aissam; Morlet-Savary, Fabrice; Bousselmi, Latifa; Lalevee, Jacques
New hybrid MOF/polymer composites for the photodegradation of organic dyes Article de journal
Dans: European Polymer Journal, vol. 154, p. 110560, 2021.
@article{Brahmi2021a,
title = {New hybrid MOF/polymer composites for the photodegradation of organic dyes},
author = {Chaima Brahmi and Mahmoud Benltifa and Cyril Vaulot and Laure Michelin and Frederic Dumur and Franck Millange and Michel Frigoli and Aissam Airoudj and Fabrice Morlet-Savary and Latifa Bousselmi and Jacques Lalevee},
doi = {10.1016/j.eurpolymj.2021.110560},
year = {2021},
date = {2021-07-01},
journal = {European Polymer Journal},
volume = {154},
pages = {110560},
abstract = {Hybrid Metal Organic-Frameworks (MOF)/polymer materials have gathered many researcher's consideration thanks to their varied functionalities and high processability. Herein, Metal Organic Frameworks (MOFs) have been successfully incorporated into an acrylate polymer network by photopolymerization upon mild visible light irradiation at 405 nm. The synthesized MOF/polymer composites were very efficient for Acid Black removal from water reaching 96% of decomposition after 30 and 45 min of UV lamp irradiation in the presence of MIL-53(Cr)/ polymer and HKUST-1(Cu)/polymer composites, respectively. Probing further, the photocomposites were fully characterized by several techniques including Thermogravimetric Analysis (TGA), Fourier-Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Energy-dispersive X- ray analysis (EDX), X- Ray Diffraction analysis (DRX), Brunauer, Emmett and Teller (BET) specific surface area, Atomic Force Microscopy (AFM), Dynamic Mechanical Analysis (DMA) and UV-Visible diffuse reflectance spectroscopy. The different methods used to characterize the MOF-containing polymers revealed these polymers to exhibit a high rigidity, an excellent thermal stability, an interesting band gap energy as well as an exceptional stability for their reuse for many photocatalytic treatment cycles.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Isaac, Carole; Deroche, Irena; Paillaud, Jean-Louis; Daou, Jean T; Ryzhikov, Andrey; Michelin, Laure; Rigolet, Severinne; Josien, Ludovic; Nouali, Habiba
All-Silica SSZ-74 Synthesized in Fluoride or Fluoride-Free Media: Investigation on Organic Structure-Directing Agent's Locations Inside Pores Article de journal
Dans: Crystal Growth & Design, vol. 21, no. 7, p. 4013–4022, 2021.
@article{Isaac2021a,
title = {All-Silica SSZ-74 Synthesized in Fluoride or Fluoride-Free Media: Investigation on Organic Structure-Directing Agent's Locations Inside Pores},
author = {Carole Isaac and Irena Deroche and Jean-Louis Paillaud and Jean T Daou and Andrey Ryzhikov and Laure Michelin and Severinne Rigolet and Ludovic Josien and Habiba Nouali},
doi = {10.1021/acs.cgd.1c00322},
year = {2021},
date = {2021-07-01},
journal = {Crystal Growth & Design},
volume = {21},
number = {7},
pages = {4013--4022},
abstract = {Pure silica SSZ-74 zeolite (-SVR type) was synthesized in fluoride or fluoride-free media using the hydroxide salts of the symmetric 1,6-bis(N-methylpyrrolidinium)hexane and asymmetric 1-methyl-1-[6-(trimethyl- azaniumyl)-hexyl]pyrrolidinium diquaternary structures as organic structure directing agents (OSDA). A structural study using the Rietveld method revealed unexpected orientation of the OSDAs inside the micropores of the zeolite. Unlike the original structural elucidation, which proposed the OSDA's location inside the channel parallel to c-axis in a distorted conformation, in both samples, the OSDAs are here located elsewhere, inside the undulated connecting channels along the [110] direction and in a more favorable linear conformation. This surprising result was confirmed from an energy point of view using a computational method together with solid-state NMR experiments. Moreover, the impact of a thermal treatment on this particular structure containing ordered vacancies was studied by high-temperature powder X-ray diffraction under different atmospheres.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Katsigiannopoulos, Dimitrios; Grana, Eftychia; Tsitoni, Konstantina; Moutsios, Ioannis; Manesi, Gkreti-Maria; Nikitina, Evgeniia A; Chalmpes, Nikolaos; Moschovas, Dimitrios; Gournis, Dimitrios; Ivanov, Dimitri A; Avgeropoulos, Apostolos
Structure/Properties Relationship of Anionically Synthesized Diblock Copolymers "Grafted to" Chemically Modified Graphene. Article de journal
Dans: Polymers, vol. 13, no. 14, 2021.
@article{Katsigiannopoulos2021,
title = {Structure/Properties Relationship of Anionically Synthesized Diblock Copolymers "Grafted to" Chemically Modified Graphene.},
author = {Dimitrios Katsigiannopoulos and Eftychia Grana and Konstantina Tsitoni and Ioannis Moutsios and Gkreti-Maria Manesi and Evgeniia A Nikitina and Nikolaos Chalmpes and Dimitrios Moschovas and Dimitrios Gournis and Dimitri A Ivanov and Apostolos Avgeropoulos},
doi = {10.3390/polym13142308},
year = {2021},
date = {2021-07-01},
journal = {Polymers},
volume = {13},
number = {14},
abstract = {A novel approach to obtaining nanocomposite materials using anionic sequential polymerization and post-synthetic esterification reactions with chemically modified graphene sheets (CMGs) is reported. The anionically synthesized diblock copolymer precursors of the PS-b-PI-OH type were grafted to the chemically modified -COOH groups of the CMGs, giving rise to the final composite materials, namely polystyrene-b-poly(isoprene)-g-CMGs, which exhibited enhanced physicochemical properties. The successful synthesis was determined through multiple molecular characterization techniques together with thermogravimetric analysis for the verification of increased thermal stability, and the structure/properties relationship was justified through transmission electron microscopy. Furthermore, the arrangement of CMGs utilizing lamellar and cylindrical morphologies was studied in order to determine the effect of the loaded CMGs in the adopted topologies.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Lin, Jui-Teng; Lalevee, Jacques; Cheng, Da-Chun
A Critical Review for Synergic Kinetics and Strategies for Enhanced Photopolymerizations for 3D-Printing and Additive Manufacturing. Article de journal
Dans: Polymers, vol. 13, no. 14, 2021.
@article{Lin2021,
title = {A Critical Review for Synergic Kinetics and Strategies for Enhanced Photopolymerizations for 3D-Printing and Additive Manufacturing.},
author = {Jui-Teng Lin and Jacques Lalevee and Da-Chun Cheng},
doi = {10.3390/polym13142325},
year = {2021},
date = {2021-07-01},
journal = {Polymers},
volume = {13},
number = {14},
abstract = {The synergic features and enhancing strategies for various photopolymerization systems are reviewed by kinetic schemes and the associated measurements. The important topics include (i) photo crosslinking of corneas for the treatment of corneal diseases using UVA-light (365 nm) light and riboflavin as the photosensitizer; (ii) synergic effects by a dual-function enhancer in a three-initiator system; (iii) synergic effects by a three-initiator C/B/A system, with electron-transfer and oxygen-mediated energy-transfer pathways; (iv) copper-complex (G1) photoredox catalyst in G1/Iod/NVK systems for free radical (FRP) and cationic photopolymerization (CP); (v) radical-mediated thiol-ene (TE) photopolymerizations; (vi) superbase photogenerator based-catalyzed thiol-acrylate Michael (TM) addition reaction; and the combined system of TE and TM using dual wavelength; (vii) dual-wavelength (UV and blue) controlled photopolymerization confinement (PC); (viii) dual-wavelength (UV and red) selectively controlled 3D printing; and (ix) three-wavelength selectively controlled in 3D printing and additive manufacturing (AM). With minimum mathematics, we present (for the first time) the synergic features and enhancing strategies for various systems of multi-components, initiators, monomers, and under one-, two-, and three-wavelength light. Therefore, this review provides not only the bridging between modeling and measurements, but also guidance for further experimental studies and new applications in 3D printings and additive manufacturing (AM), based on the innovative concepts (kinetics/schemes).},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gencoglu, Turkan; Graff, Bernadette; Morlet-Savary, Fabrice; Lalevee, Jacques; Avci, Duygu
Benzophenone-Functionalized Oligo(Amido Amine)/Iodonium Salt Systems as Visible Light Photoinitiators Article de journal
Dans: CHEMISTRYSELECT, vol. 6, no. 23, p. 5743-5751, 2021, ISSN: 2365-6549.
@article{Gencoglu2021ab,
title = {Benzophenone-Functionalized Oligo(Amido Amine)/Iodonium Salt Systems as Visible Light Photoinitiators},
author = {Turkan Gencoglu and Bernadette Graff and Fabrice Morlet-Savary and Jacques Lalevee and Duygu Avci},
doi = {10.1002/slct.202100991},
issn = {2365-6549},
year = {2021},
date = {2021-06-01},
journal = {CHEMISTRYSELECT},
volume = {6},
number = {23},
pages = {5743-5751},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Christakopoulos, Fotis; Bersenev, Egor; Grigorian, Souren; Brem, Andre; Ivanov, Dimitri A.; Tervoort, Theo A.; Litvinov, Victor
Melting-Induced Evolution of Morphology, Entanglement Density, and Ultradrawability of Solution-Crystallized Ultrahigh-Molecular-Weight Polyethylene Article de journal
Dans: MACROMOLECULES, vol. 54, no. 12, p. 5683-5693, 2021, ISSN: 0024-9297.
@article{Christakopoulos2021b,
title = {Melting-Induced Evolution of Morphology, Entanglement Density, and Ultradrawability of Solution-Crystallized Ultrahigh-Molecular-Weight Polyethylene},
author = {Fotis Christakopoulos and Egor Bersenev and Souren Grigorian and Andre Brem and Dimitri A. Ivanov and Theo A. Tervoort and Victor Litvinov},
doi = {10.1021/acs.macromol.1c00667},
issn = {0024-9297},
year = {2021},
date = {2021-06-01},
journal = {MACROMOLECULES},
volume = {54},
number = {12},
pages = {5683-5693},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Marteau, Julie; Anselme, Karine; Pieuchot, Laurent; Chauvy, Pierre-Francois; Bigerelle, Maxence
Topography characterization of sinusoidal surfaces obtained with electrochemical machining Article de journal
Dans: SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES, vol. 9, no. 2, 2021, ISSN: 2051-672X.
@article{Marteau2021a,
title = {Topography characterization of sinusoidal surfaces obtained with electrochemical machining},
author = {Julie Marteau and Karine Anselme and Laurent Pieuchot and Pierre-Francois Chauvy and Maxence Bigerelle},
doi = {10.1088/2051-672X/abeae9},
issn = {2051-672X},
year = {2021},
date = {2021-06-01},
journal = {SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES},
volume = {9},
number = {2},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zbair, Mohamed; Bennici, Simona
Survey Summary on Salts Hydrates and Composites Used in Thermochemical Sorption Heat Storage: A Review Article de journal
Dans: ENERGIES, vol. 14, no. 11, 2021.
@article{Zbair2021b,
title = {Survey Summary on Salts Hydrates and Composites Used in Thermochemical Sorption Heat Storage: A Review},
author = {Mohamed Zbair and Simona Bennici},
doi = {10.3390/en14113105},
year = {2021},
date = {2021-06-01},
journal = {ENERGIES},
volume = {14},
number = {11},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gauthier, Magali; Nguyen, Minh Hoang; Blondeau, Lucie; Foy, Eddy; Wong, Alan
Operando NMR characterization of a metal-air battery using a double-compartment cell design Article de journal
Dans: SOLID STATE NUCLEAR MAGNETIC RESONANCE, vol. 113, 2021, ISSN: 0926-2040.
@article{Gauthier2021b,
title = {Operando NMR characterization of a metal-air battery using a double-compartment cell design},
author = {Magali Gauthier and Minh Hoang Nguyen and Lucie Blondeau and Eddy Foy and Alan Wong},
doi = {10.1016/j.ssnmr.2021.101731},
issn = {0926-2040},
year = {2021},
date = {2021-06-01},
journal = {SOLID STATE NUCLEAR MAGNETIC RESONANCE},
volume = {113},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Anokhin, Denis V.; Gorbunova, Marina A.; Abukaev, Ainur F.; Ivanov, Dimitri A.
Multiblock Thermoplastic Polyurethanes: In Situ Studies of Structural and Morphological Evolution under Strain Article de journal
Dans: MATERIALS, vol. 14, no. 11, 2021.
@article{Anokhin2021b,
title = {Multiblock Thermoplastic Polyurethanes: In Situ Studies of Structural and Morphological Evolution under Strain},
author = {Denis V. Anokhin and Marina A. Gorbunova and Ainur F. Abukaev and Dimitri A. Ivanov},
doi = {10.3390/ma14113009},
year = {2021},
date = {2021-06-01},
journal = {MATERIALS},
volume = {14},
number = {11},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Miron, Simona M.; Espindola, Ariane; Dutournie, Patrick; Ponche, Arnaud
Study of the relationship between applied transmembrane pressure and antimicrobial activity of lysozyme Article de journal
Dans: SCIENTIFIC REPORTS, vol. 11, no. 1, 2021, ISSN: 2045-2322.
@article{Miron2021b,
title = {Study of the relationship between applied transmembrane pressure and antimicrobial activity of lysozyme},
author = {Simona M. Miron and Ariane Espindola and Patrick Dutournie and Arnaud Ponche},
doi = {10.1038/s41598-021-91564-x},
issn = {2045-2322},
year = {2021},
date = {2021-06-01},
journal = {SCIENTIFIC REPORTS},
volume = {11},
number = {1},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zhou, Ruchun; Mhanna, Rana; Jin, Ming; Pan, Haiyan; Wan, Decheng; Versace, Davy-Louis; Thomas, Constance; Morlet-Savary, Fabrice; Soppera, Olivier; Malval, Jean-Pierre
Comparative Photoinitiating Performances of Donor-Acceptor Multibranched Triphenylamines Designed for Light-Triggered Micropatterning Applications Article de journal
Dans: ACS APPLIED POLYMER MATERIALS, vol. 3, no. 6, p. 3103-3113, 2021, ISSN: 2637-6105.
@article{Zhou2021ab,
title = {Comparative Photoinitiating Performances of Donor-Acceptor Multibranched Triphenylamines Designed for Light-Triggered Micropatterning Applications},
author = {Ruchun Zhou and Rana Mhanna and Ming Jin and Haiyan Pan and Decheng Wan and Davy-Louis Versace and Constance Thomas and Fabrice Morlet-Savary and Olivier Soppera and Jean-Pierre Malval},
doi = {10.1021/acsapm.1c00316},
issn = {2637-6105},
year = {2021},
date = {2021-06-01},
journal = {ACS APPLIED POLYMER MATERIALS},
volume = {3},
number = {6},
pages = {3103-3113},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zhou, Ruchun; Mhanna, Rana; Jin, Ming; Pan, Haiyan; Wan, Decheng; Versace, Davy-Louis; Thomas, Constance; Morlet-Savary, Fabrice; Soppera, Olivier; Malval, Jean-Pierre
Comparative Photoinitiating Performances of Donor-Acceptor Multibranched Triphenylamines Designed for Light-Triggered Micropatterning Applications Article de journal
Dans: Acs Applied Polymer Materials, vol. 3, no. 6, p. 3103–3113, 2021.
@article{Zhou2021a,
title = {Comparative Photoinitiating Performances of Donor-Acceptor Multibranched Triphenylamines Designed for Light-Triggered Micropatterning Applications},
author = {Ruchun Zhou and Rana Mhanna and Ming Jin and Haiyan Pan and Decheng Wan and Davy-Louis Versace and Constance Thomas and Fabrice Morlet-Savary and Olivier Soppera and Jean-Pierre Malval},
doi = {10.1021/acsapm.1c00316},
year = {2021},
date = {2021-06-01},
journal = {Acs Applied Polymer Materials},
volume = {3},
number = {6},
pages = {3103--3113},
abstract = {The present investigation describes an original structure-reactivity relationship within a series of type II photoinitiators designed on the basis of a multibranched molecular engineering strategy. Each photoinitiator indeed incorporates a triphenylamine subunit decorated with a combination of parasubstituents, implying anisole or thioanisole as pi-conjugated donor groups and multiple reactive ketones as electron-acceptor functions. Interestingly, we demonstrate that the photoinitiating efficiency of such multipolar derivatives is mainly modulated by a solvent-mediated interplay between intersystem crossing and intramolecular charge transfer processes at the excited singlet state. Such a balancing mechanism drastically regulates the population of highly reactive excited triplet species in such a manner that the photoinitiation performance of the dyes can be enhanced by more than 1 order of magnitude within the series. Taking advantage of this amplified photoreactivity, we illustrated the versatile application potential of the best-performing photoinitiating prototype, which was both employed both in a rapid two-dimensional (2D) photopatterning process through liquid crystal display (LCD) image projection and in three-dimensional (3D) micro-optics fabrication at the surface of an optical fiber.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Lecroq, William; Schleinitz, Jules; Billoue, Mallaury; Perfetto, Anna; Gaumont, Annie-Claude; Lalevee, Jacques; Ciofini, Ilaria; Grimaud, Laurence; Lakhdar, Sami
Metal-Free Deoxygenation of Amine N-Oxides: Synthetic and Mechanistic Studies Article de journal
Dans: Chemphyschem, vol. 22, no. 12, p. 1237–1242, 2021.
@article{Lecroq2021,
title = {Metal-Free Deoxygenation of Amine N-Oxides: Synthetic and Mechanistic Studies},
author = {William Lecroq and Jules Schleinitz and Mallaury Billoue and Anna Perfetto and Annie-Claude Gaumont and Jacques Lalevee and Ilaria Ciofini and Laurence Grimaud and Sami Lakhdar},
doi = {10.1002/cphc.202100108},
year = {2021},
date = {2021-06-01},
journal = {Chemphyschem},
volume = {22},
number = {12},
pages = {1237--1242},
abstract = {We report herein an unprecedented combination of light and P(III)/P(V) redox cycling for the efficient deoxygenation of aromatic amine N-oxides. Moreover, we discovered that a large variety of aliphatic amine N-oxides can easily be deoxygenated by using only phenylsilane. These practically simple approaches proceed well under metal-free conditions, tolerate many functionalities and are highly chemoselective. Combined experimental and computational studies enabled a deep understanding of factors controlling the reactivity of both aromatic and aliphatic amine N-oxides.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zbair, Mohamed; Bennici, Simona
Survey Summary on Salts Hydrates and Composites Used in Thermochemical Sorption Heat Storage: A Review Article de journal
Dans: Energies, vol. 14, no. 11, p. 3105, 2021.
@article{Zbair2021,
title = {Survey Summary on Salts Hydrates and Composites Used in Thermochemical Sorption Heat Storage: A Review},
author = {Mohamed Zbair and Simona Bennici},
doi = {10.3390/en14113105},
year = {2021},
date = {2021-06-01},
journal = {Energies},
volume = {14},
number = {11},
pages = {3105},
abstract = {To improve the proficiency of energy systems in addition to increasing the usage of renewable energies, thermal energy storage (TES) is a strategic path. The present literature review reports an overview of the recent advancements in the utilization of salt hydrates (single or binary mixtures) and composites as sorbents for sorption heat storage. Starting by introducing various heat storage systems, the operating concept of the adsorption TES was clarified and contrasted to other technologies. Consequently, a deep examination and crucial problems related to the different types of salt hydrates and adsorbents were performed. Recent advances in the composite materials used in sorption heat storage were also reviewed and compared. A deep discussion related to safety, price, availability, and hydrothermal stability issues is reported. Salt hydrates display high theoretical energy densities, which are promising materials in TES. However, they show a number of drawbacks for use in the basic state including low temperature overhydration and deliquescence (e.g., MgCl2), high temperature degradation, sluggish kinetics leading to a low temperature rise (e.g., MgSO4), corrosiveness and toxicity (e.g., Na2S), and low mass transport due to the material macrostructure. The biggest advantage of adsorption materials is that they are more hydrothermally stable. However, since adsorption is the most common sorption phenomenon, such materials have a lower energy content. Furthermore, when compared to salt hydrates, they have higher prices per mass, which reduces their appeal even further when combined with lower energy densities. Economies of scale and the optimization of manufacturing processes may help cut costs. Among the zeolites, Zeolite 13X is among the most promising. Temperature lifts of 35-45 degrees C were reached in lab-scale reactors and micro-scale experiments under the device operating settings. Although the key disadvantage is an excessively high desorption temperature, which is problematic to attain using heat sources, for instance, solar thermal collectors. To increase the energy densities and enhance the stability of adsorbents, composite materials have been examined to ameliorate the stability and to achieve suitable energy densities. Based on the reviewed materials, MgSO4 has been identified as the most promising salt; it presents a higher energy density compared to other salts and can be impregnated in a porous matrix to prepare composites in order to overcome the drawbacks connected to its use as pure salt. However, due to pore volume reduction, potential deliquescence and salt leakage from the composite as well as degradation, issues with heat and mass transport can still exist. In addition, to increase the kinetics, stability, and energy density, the use of binary salt deposited in a porous matrix is suitable. Nevertheless, this solution should take into account the deliquescence, safety, and cost of the selected salts. Therefore, binary systems can be the solution to design innovative materials with predetermined sorption properties adapted to particular sorption heat storage cycles. Finally, working condition, desorption temperature, material costs, lifetime, and reparation, among others, are the essential point for commercial competitiveness. High material costs and desorption temperatures, combined with lower energy densities under normal device operating conditions, decrease their market attractiveness. As a result, the introduction of performance metrics within the scientific community and the use of economic features on a material scale are suggested.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Oliveira, Larissa V F; Limousy, Lionel; Bennici, Simona; Josien, Ludovic; Hajjar-Garreau, Samar; Goddard, Mary-Lorene; Bizeto, Marcos A; Camilo, Fernanda F
Facile Elaboration of Wet Cellulose Film as Catalyst Support of MnOx Nanoparticles for the Catalytic Oxidation of Dyes in Absence of Light Article de journal
Dans: Clean Technologies, vol. 3, no. 2, p. 288–298, 2021.
@article{Oliveira2021,
title = {Facile Elaboration of Wet Cellulose Film as Catalyst Support of MnOx Nanoparticles for the Catalytic Oxidation of Dyes in Absence of Light},
author = {Larissa V F Oliveira and Lionel Limousy and Simona Bennici and Ludovic Josien and Samar Hajjar-Garreau and Mary-Lorene Goddard and Marcos A Bizeto and Fernanda F Camilo},
doi = {10.3390/cleantechnol3020016},
year = {2021},
date = {2021-06-01},
journal = {Clean Technologies},
volume = {3},
number = {2},
pages = {288--298},
abstract = {In the present work a remarkably simple procedure for the elaboration of wet cellulose film containing manganese oxide nanoparticles was developed. The films were produced using a mold made by 3D printing using cellulose dissolved in an ionic liquid, which allows the production of thin and homogeneous films of different shapes, types and designs which cannot be made using conventional techniques. Thanks to this possibility, the final catalytic object can be implemented in specific reactors. Manganese oxide nanoparticles were prepared as a colloidal solution by a redox/sol-gel procedure and then deposited on the cellulose films by wet impregnation. The catalytic film obtained was tested in the decomposition of a dye, indigo carmine (IC), in the absence of light. The influence of the pH of the solution on the decomposition rate was investigated. IC total decomposition was measured after 1-h reaction at pH below 3. At pH = 2, no deactivation of the catalyst was observed even after four decomposition cycles. This work provides a new strategy to design cellulose-based catalysts for dye removal from wastewater.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Plan
- L’institut
- Recherche
- Les axes thématiques
- Ingénierie des Polymères Fonctionnels
- Matériaux à Porosité Contrôlée
- Carbone et Matériaux Hybrides
- Molécules, Nano-, Micro-Structures : Elaboration et Fonctionnalités
- Transferts, Réactivité, Matériaux pour les procédés propres
- Physique des systèmes de basse dimensionnalité
- Biomatériaux-Biointerfaces
- Simulations Numériques Multi-échelles
- Nos publications
- Plateformes
- Les 11 plateformes de caractérisation
- Adsorption
- Diffraction des Rayons X (DRX)
- Analyses Mécaniques, Thermomécaniques et Rhéologiques (AMTR)
- AFM ou Microscopie à champ proche
- Microscopie confocale
- Microscopies électroniques
- Microscopie numérique
- Mouillabilité
- RMN du solide
- Spectroscopie FTIR et Raman
- Spectroscopie de Photoélectrons X
- Projets
- Emplois
- Formations