Capillary condensation of a binary mixture in slit-like pores |
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Authors: | Bucior Katarzyna Patrykiejew Andrzej Pizio Orest Sokołowski Stefan |
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Affiliation: | Department for the Modeling of Physico-Chemical Processes, Maria Curie-Sk?odowska University, 20031 Lublin, Poland. kbucior@elrond.umcs.lublin.pl |
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Abstract: | We investigate the capillary condensation of two model fluid mixtures in slit-like pores, which exhibit different demixing properties in the bulk phase. The interactions between adsorbate particles are modeled by using Lennard-Jones (12,6) potentials and the adsorbing potentials are of the Lennard-Jones (9,3) type. The calculations are performed for different pore widths and at different concentrations of the bulk gas, by means of density functional theory. We evaluate the capillary phase diagrams and discuss their dependence on the parameters of the model. Our calculations indicate that a binary mixture confined to a slit-like pore may exhibit rich phase behavior. |
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