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Author Guyer, R. A. ♦ McCall, K. R.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ CAPILLARY FLOW ♦ MATHEMATICAL MODELS ♦ ADSORPTION ♦ SORPTIVE PROPERTIES ♦ ADSORPTION ISOTHERMS ♦ ADSORBENTS ♦ MOLECULES ♦ PORE STRUCTURE ♦ PORE PRESSURE ♦ HYSTERESIS ♦ DESORPTION ♦ CONDENSATES ♦ FILMS ♦ CHEMICAL POTENTIAL
Abstract A model of the capillary condensation process, i.e., of adsorption-desorption isotherms, having only pore-pore interactions is constructed. The model yields (1) hysteretic isotherms, (2) invasion percolation on desorption, and (3) hysteresis with discrete memory for interior chemical potential loops. All of these features are seen in experiment. The model is compared to a model with no pore-pore interactions (the Preisach model) and to a related model of interacting pore systems (the random field Ising model). The capillary condensation model differs from both. {copyright} {ital 1996 The American Physical Society.}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-07-01
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 54
Issue Number 1


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