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

Author

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  • Hamada, Yoshinobu
  • Koga, Kenichiro
  • Tanaka, Hideki

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.

Suggested Citation

  • Hamada, Yoshinobu & Koga, Kenichiro & Tanaka, Hideki, 2009. "Phase behavior and fluid–solid surface tension of argon in slit pores and carbon nanotubes," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 388(12), pages 2289-2298.
    • Handle: RePEc:eee:phsmap:v:388:y:2009:i:12:p:2289-2298
    DOI: 10.1016/j.physa.2009.02.034
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