Understanding adsorption hysteresis in porous glasses and other mesoporous materials

H J Woo, L Sarkisov, P A Monson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The origin of adsorption hysteresis in porous glasses is investigated using a mean field theory and Monte Carlo simulations, utilizing a coarse-grained lattice model. Results in the hysteresis region closely agree with the behavior seen in the experiments of xenon adsorption in porous glass by Everett and co-workers (Everett, 1982). Hysteresis and scanning behavior occurs due to the presence of a very large number of metastable states. Adsorption hysteresis is dynamic in origin, but the long time dynamics is so slow that on accessible time scales, the system appears equilibrated.

Original languageEnglish
Title of host publicationCHARACTERIZATION OF POROUS SOLIDS VI
EditorsF RodriguezReinoso, B McEnaney, J Rouquerol, K Unger
Place of PublicationAMSTERDAM
PublisherElsevier B.V.
Pages155-162
Number of pages8
ISBN (Print)0-444-51261-6
Publication statusPublished - 2002
Event6th International Symposium on Characterization of Porous Solids (COPS-VI) - ALICANTE
Duration: 8 May 200211 May 2002

Conference

Conference6th International Symposium on Characterization of Porous Solids (COPS-VI)
CityALICANTE
Period8/05/0211/05/02

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