ELECTRODE-KINETICS AT THE PT-YTTRIA-STABILIZED ZIRCONIA INTERFACE BY COMPLEX IMPEDANCE DISPERSION ANALYSIS

被引：36
作者：
BADWAL, SPS
BRUIN, HJD
机构：
[1] School of Physical Sciences, Flinders University of South Australia, Bedford Park
来源：
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1979年 / 54卷 / 01期
关键词：
D O I：
10.1002/pssa.2210540133
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Low frequency impedance dispersion analysis, attributed to polarization at the electrode–electrolyte interface, exhibits a strong frequency dependence of the equivalent parallel resistor and capacitor. Such response for Pt/YSZ/Pt cells is analysed as a Cole‐Cole complex impedance–admittance dispersion with a relaxation distribution. A physical interpretation based on the results obtained and observations of reactions between noble metals and ceramic oxides, suggests the creation of a complex polarized layer at the electrode–electrolyte interface involving a proliferation of cationic species as the possible cause of irreversible energy losses in the Faradaic reactions. Their kinetics is found to change with the oxygen partial pressure of the atmosphere. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA
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页码：261 / 270
页数：10
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