The Conductive Characteristics of Perovskite Oxide Electrodes Duringthe Polarization Process

Abstract

Abstract: The polarization of perovskite oxides and their electrocatalytic activity for the oxygen reduction are investigated. It is found that the electrode resistance increases significantly when the reduction of the oxides electrode takes place during the cathodic polarization process with a corresponding drop of eletrocatalytic activity. Whereas the electrode resistance decreases when the reduced oxides are reoxi-dized during the anodic polarization process. The electrode conductivity is reversibly changed. The influence of the electric conduction of perovskite and the effect of the resistance change of the electrode on the performance of the electrode are discussed.

Key words: Perovskite, Oxide, Oxygen electrode

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Zhou Yun-hong, Luo Pei-fang, Wu Zhi-yuan, Zha Quan-xing(Cha Chuansin) . The Conductive Characteristics of Perovskite Oxide Electrodes Duringthe Polarization Process[J]. Chem. J. Chinese Universities, 1990, 11(12): 1396.

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The Conductive Characteristics of Perovskite Oxide Electrodes Duringthe Polarization Process

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