Electrode kinetic study of silver-ion doping effect in solid-electrolyte potentiometric carbon dioxide gas sensor

被引：7
|
作者：
Dubbe, A [1 ]
Wiemhofer, HD [1 ]
Sadaoka, Y [1 ]
机构：
[1] UNIV MUNSTER,INST INORGAN CHEM,D-48149 MUNSTER,GERMANY
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1997年 / 144卷 / 03期
关键词：
D O I：
10.1149/1.1837511
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A kinetic study of Ag electrodes on Na2CO3/BaCO3 solid electrolyte using pressure modulation and electrochemical impedance spectroscopy reveals that the response to CO2/O-2 partial pressure changes is determined by a combination of a reaction process and subsequent diffusion of Ag+ ions into the carbonate. This Ag+ ion doping is assumed to enhance CO2 exchange kinetics at the carbonate/electrode interface and to be responsible for the observed improved CO2 gas-sensing performance.
引用
收藏
页码：943 / 947
页数：5
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