COMBINATION OF PRESSURE MODULATION AND IMPEDANCE SPECTROSCOPY FOR STUDY OF ELECTRODE-KINETICS ON SOLID ELECTROLYTES - THE POROUS GOLD SOLID SODIUM-CARBONATE INTERFACE

被引：9

作者：

DUBBE, A ^{[1
]}

WIEMHOFER, HD ^{[1
]}

GOPEL, W ^{[1
]}

机构：

[1] UNIV TUBINGEN,INST PHYS & THEORET CHEM,D-72076 TUBINGEN,GERMANY

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1995年 / 142卷 / 08期

关键词：

D O I：

10.1149/1.2050088

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An experimental scheme for the analysis of electrode kinetics on solid electrolytes using a combination of pressure modulation and electrochemical impedance spectroscopy is described. The data interpretation involves two-port electrical equivalent circuits. Application to the Au/solid Na2CO3 interface reveals that only one of the two electrode processes found in the impedance spectra determines the response behavior to O-2 and CO2 partial pressure modulation. The rate-determining step is assigned to the formation of oxygen radical anions O- from molecular oxygen at the Na2CO3 covered Au surface.

引用

页码：2757 / 2761

页数：5

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