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Key Information :

  • Measurement stations : 1 adsorption station (non corrosive probe molecules, in particular N₂, CO₂, Kr, Ar), 2 independent degassing stations (Degassing and sample purification through vacuum and heating)
  • Pressure range :
    • Microporosity : 10⁻⁵ to 10⁻¹ mmHg (10⁻³ to 10 Pa)
    • Meso- and macro-porosity : 1 to 760 mmHg (10 to 10⁵ Pa)
  • Pressure sensors :
    • 1000 mmHg (resolution 10⁻³ mmHg)
    • 10 mmHg (resolution 10⁻⁵ mmHg)
    • 1 mmHg (resolution 10⁻⁶ mmHg)
  • Analysis temperature : 77K (liquid nitrogen), 273K (ice bath), 293 K (room temperature)
  • Adsorbates : non corrosive gas – no vapour
  • Specific surface area : > 0.1 m²/g (N₂)
  • Degassing station : Ambient temperature to 450 °C (increment of 1°C)
  • Cryogenic system : 3.5-liter Dewar, 72h autonomy
  • Accessibility : Self-service for staff, PhD students, and Master’s students after training by the technical manager

 

Micromeritics Analyzer, ASAP 2020 

The ASAP 2020 is a device dedicated to measuring the textural properties of materials : specific surface area, porosity, adsorbent-adsorbate affinity, isosteric heat,… It allows for the characterization of micro-, meso and macro-porous structures through independent adsorption and preliminary degassing (activation) phases.

What is it used for ?

The ASAP 2020 is used for :

  • Characterizing the micro-, meso- and macro-porosity of materials
  • Specific surface area,
  • Pore size distribution, geometry (HK, BJH et DFT models)
  • Isosteric heats
  • Affinity adsorbent-adsorbate

Preliminary treatment : removing impurities through degassing prior to analysis

Fields of Application

  • Porous inorganic materials(catalysts, zeolites, MOFs, etc.)
  • Carbonaceous materials (graphites, biochars, hard carbons, actived carbons,…)
  • Polymer and polymer-based composite materials
  • Bio-based and nanostructured materials
  • Applications in advanced materialsand the chemical industry

Available Measurements

  • Specific surface area (in particular N₂, CO₂, Kr, Ar)
  • Porosity analysis : pore size distribution, pore volume, geometry
  • Isosteric heats
  • Adsorbent-adsorbate affinity