Towards the description of the phase behavior of electrolyte solutions in slit-like pores. Density functional approach for the restricted primitive model

We develop a density functional approach for the phase behavior of the restricted primitive model for electrolyte solutions confined to slit-like pores. The theory permits to evaluate the effects of confinement on the ionic vapor – ionic liquid coexistence envelope. We have shown that due to confine...

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Bibliographic Details
Date:2004
Main Authors: Pizio, O., Patrykiejew, A., Sokołowski, S.
Format: Article
Language:English
Published: Інститут фізики конденсованих систем НАН України 2004
Series:Condensed Matter Physics
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Towards the description of the phase behavior of electrolyte solutions in slit-like pores. Density functional approach for the restricted primitive model / O. Pizio, A. Patrykiejew, S. Sokołowski // Condensed Matter Physics. — 2004. — Т. 7, № 4(40). — С. 779–792. — Бібліогр.: 30 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:We develop a density functional approach for the phase behavior of the restricted primitive model for electrolyte solutions confined to slit-like pores. The theory permits to evaluate the effects of confinement on the ionic vapor – ionic liquid coexistence envelope. We have shown that due to confinement in pores with uncharged walls the critical temperature of the model decreases compared to the bulk. Also the coexistence envelope of the transition is narrower in comparison to the bulk model. The transition between dense and dilute phase represents capillary evaporation. We have analyzed changes of the density profiles of ions during transition. Possible extensions of this study are discussed.