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Entropy 2004, 6(2), 233-243; doi:10.3390/e6020233

The Stability Limits of the Surface Phases at the Polarized Interface of a Liquid Electrode with an Electrolyte Solution

A.N. Frumkin Institute of electrochemistry, RAS, 117071, Moscow, Russia
Received: 29 June 2003 / Accepted: 12 January 2004 / Published: 27 January 2004
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Abstract

The thermodynamic stability limits of specific adsorption at the polarized liquid metal/ electrolyte solution interface are studied. Here the reversible starting and disappearance of the electroadsorption effects at a threshold potential are revealed, which are the result of Gibbs stability violation. The stability limits are determined by the bifurcation manifold of the critical states for which determinant of matrix of a second differential of the surface pressure equals zero. The equations of the critical states are equivalent to the spinodal equations used in the theory of phase transitions. The conception developed beneath will help provide to interpretate the anomalies of electrocapillary effects through the catastrophe theory.
Keywords: electro-adsorption stability limits; catastrophe at the polarized interfaces electro-adsorption stability limits; catastrophe at the polarized interfaces
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Kuklin, R.N. The Stability Limits of the Surface Phases at the Polarized Interface of a Liquid Electrode with an Electrolyte Solution. Entropy 2004, 6, 233-243.

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