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Capillary Condensation of Associating Fluids in Slit-Like Pores: A Density Functional Theory

✍ Scribed by Krzysztof Stepniak; Andrzej Patrykiejew; Zofia Sokołowska; Stefan Sokołowski

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
130 KB
Volume
214
Category
Article
ISSN
0021-9797

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✦ Synopsis

Adsorption of associating particles interacting via the Lennard-Jones potential in slit-like pores is studied using the density functional theory. A model of association with one site per particle is considered. Capillary phase diagrams for three values of the association energy are evaluated. We show that the association shifts the entire diagram toward higher temperatures. The critical average densities of the confined fluid, however, are almost independent of the association energy. Our results also demonstrate that the association significantly influences the layering transitions.

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