Irreversible Thermodynamic Analysis of the Cross Effect between Electron and Ion Currents in Ionic Compounds with Electronic Conduction Prevailing

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J. Korean Ceram. Soc. > Volume 25(3); 1988 > Article

Journal of the Korean Ceramic Society 1988;25(3): 243.

전자 전도체 이온결합 화합물에서 전자 흐름과 이온 흐름간 간섭 현상의 비가역 열역학적 분석

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서울대학교 공과대학 무기재료공학과

Irreversible Thermodynamic Analysis of the Cross Effect between Electron and Ion Currents in Ionic Compounds with Electronic Conduction Prevailing

ABSTRACT

The cross effect between an ion flux and an electronic current in a nonstoichiometric binary oxide, $A_{1-delta}O_mu$, has been analyzed in the light of irreversible thermodynamics. It has been shown that a net flux of the mobile cation vacancy is induced through the system in an electrical potential gradient applied across a pair of the reversible electrodes, which makes the Fick frame shift relative to the laboratory frame. As a consequence, the relative shift is a measure of the effective charge responsible for the cross effect. Two experiments are proposed to measure the shift.