Phase behavior and fluid-solid surface tension of argon in slit pores and carbon nanotubes

Yoshinobu Hamada, Kenichiro Koga, Hideki Tanaka

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    Phase behaviors of argon in several types of cylindrical and slit pores are examined by grand-canonical Monte Carlo simulations. Condensation processes in single- and multi-walled carbon nanotubes along with those in hard-wall tubes are compared. Effects of the pore size on pressure-tensor components, the fluid-wall surface tension, and the adsorption are also compared for the different fluid-pore interactions. The chemical potential at which the fluid begins to condense in the single-walled nanotube is greater than that in the multi-walled nanotube by an amount nearly equal to the difference in the potential-well depth of the fluid-pore interaction, and the adsorption isotherms overlap each other almost completely for narrow pores and partially for wider pores. Similar analyses are performed for slit pores of two different hydrocarbon models.

    Original languageEnglish
    Pages (from-to)2289-2298
    Number of pages10
    JournalPhysica A: Statistical Mechanics and its Applications
    Volume388
    Issue number12
    DOIs
    Publication statusPublished - Jun 15 2009

    Keywords

    • Adsorption
    • Argon
    • Carbon nanotube
    • Confined fluid
    • Monte Carlo simulation
    • Slit pore

    ASJC Scopus subject areas

    • Statistics and Probability
    • Condensed Matter Physics

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