The Electrochemical Behavior of the LaSrCuO(4-delta)/Ce(0.9)Gd(0.1)O(2-delta) Interfaceстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The electrochemical behavior of the LaSrCuO(4-delta)/Ce(0.9)Gd(0.1)O(2-delta) interface is studied by impedance spectroscopy and cyclic voltammetry methods. By analyzing the dependence of the impedance frequency spectra on the oxygen partial pressure, the rate-determining stages of oxygen exchange are determined in the temperature interval of 500-900 degrees C. For temperatures above 700 degrees C, the adsorption of oxygen molecules and their dissociation to oxygen atoms are shown to make a substantial contribution to the polarization resistance of the overall electrode process, besides the charge-transfer resistance.