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GIBBS FREE ENERGY OF A SYSTEM OF TWO HIGHLY CHARGED PLATES IMMERSED IN AN ELECTROLYTE

TADATOMI SHINOHARA

Department of Physics, Kyoto Sangyo University, Kamigamo-Motoyama, Kita-Ku, Kyoto 603-8555, Japan

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MARTIN V. SMALLEY

Bryn Deiniol, Galltyfoel, Caernarfon, Gwynedd LL55 3EG, Wales, UK

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, and

IKUO S. SOGAMI

Department of Physics, Kyoto Sangyo University, Kamigamo-Motoyama, Kita-Ku, Kyoto 603-8555, Japan

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https://doi.org/10.1142/S0217979205032061Cited by:2 (Source: Crossref)

Abstract

The Gibbs free energy of two highly charged plates immersed in an electrolyte solution in a finite container is investigated using mean field theory. Adiabatic potential of the charged plates, which is derived from the Gibbs free energy, has a long-range weak attractive part and medium range strong repulsive part under the Dirichlet boundary condition. From comparison with the Helmholtz adiabatic potential, it is proved that the two adiabatic potentials have qualitatively the same structure of a repulsive component and an attractive component and that the Gibbs adiabatic potential shows the stronger attractive effect.

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