RELATION BETWEEN PROTON CONDUCTION AND CONCENTRATION OF OXIDE ION VACANCY IN SRCEO3 BASED SINTERED OXIDES

被引:23
作者
YAJIMA, T
IWAHARA, H
UCHIDA, H
KOIDE, K
机构
[1] OSAKA UNIV,FAC ENGN,SUITA,OSAKA 565,JAPAN
[2] TYK CORP,CTR RES & DEV,TAJIMI 507,JAPAN
关键词
D O I
10.1016/0167-2738(90)90152-H
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The relation between proton conduction and the content of oxide ion vacancy in SrCeO3 based oxides was investigated under various conditions by substituting trivalent Y and pentavalent Nb for Ce site in SrCeO3 lattice in an appropriate ratio, and protonic conductivity was measured under various conditions. It was found that protonic conductivity increased with increasing content of oxide ion vacancy but was almost independent of the dopant concentration. These phenomena indicate that it is not dopant cations but oxide ion vacancies themselves that directly affect the proton formation which might make the conduction protonic. © 1990.
引用
收藏
页码:914 / 917
页数:4
相关论文
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