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3. Mesopore characterization
3.1 Mesoporous volume and mean mesoporous radius
Experience shows that type IV nitrogen adsorption isotherms at 77 K, i.e. characterized by the existence of a saturation plateau (
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Mesopore characterization
Simultaneous characterization of micropores and mesopores
Bibliography
Software tools
Database of hundreds of adsorption isotherms, including many new adsorbents http://adsorbents.nist.gov/
NLDFT calculations http://www.NLDFT.com
Fluid properties https://www.nist.gov/srd/refprop
...Events
On a national scale: annual days of the French Adsorption Association, usually in January-February. http://www.adsorption.fr/spip.php?rubrique1
Internationally: three successive triennial congresses, one per year, usually in April-May, in the following order:
Fundamentals...
Standards and norms
- Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption – Part 2 : Analysis of mesopores and macropores by gas adsorption - ISO 15901-2 - 2006
- Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption – Part 3 : Analysis of micropores by gas adsorption - ISO 15901-3 - 2007
Regulations. Safety
Use of liquid nitrogen http://bip.cnrs-mrs.fr/acmo/node8.html
Handling nanomaterials and nanoparticles http://www.inrs.fr/risques/nanomateriaux/prevention-risques.html
Gas handling...
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Marketed equipment (non-exhaustive list)
The commercial adsorption units shown in Table allow a detailed study based on the nitrogen adsorption-desorption isotherm at 77 K. Generally speaking, the adsorption isotherm domain they automatically record, and the software they are equipped with, allow fairly easy access to specific surface area (BET method
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