Phase equilibria and interfacial tension of fluids confined in narrow pores

Yoshinobu Hamada, Kenichiro Koga, Hideki Tanaka

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

Correlation between phase behaviors of a Lennard-Jones fluid in and outside a pore is examined over wide thermodynamic conditions by grand canonical Monte Carlo simulations. A pressure tensor component of the confined fluid, a variable controllable in simulation but usually uncontrollable in experiment, is related with the pressure of a bulk homogeneous system in equilibrium with the confined system. Effects of the pore dimensionality, size, and attractive potential on the correlations between thermodynamic properties of the confined and bulk systems are clarified. A fluid-wall interfacial tension defined as an excess grand potential is evaluated as a function of the pore size. It is found that the tension decreases linearly with the inverse of the pore diameter or width.

Original languageEnglish
Article number084908
JournalThe Journal of Chemical Physics
Volume127
Issue number8
DOIs
Publication statusPublished - 2007

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Phase equilibria
Surface tension
interfacial tension
porosity
Pore size
Fluids
fluids
Phase behavior
Tensors
Thermodynamic properties
Thermodynamics
simulation
thermodynamic properties
tensors
thermodynamics
Experiments
Monte Carlo simulation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Phase equilibria and interfacial tension of fluids confined in narrow pores. / Hamada, Yoshinobu; Koga, Kenichiro; Tanaka, Hideki.

In: The Journal of Chemical Physics, Vol. 127, No. 8, 084908, 2007.

Research output: Contribution to journalArticle

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