Electrical and ionic conductivity of Gd-doped ceria

被引：0
|
作者：
Wang, SR [1 ]
Kobayashi, T [1 ]
Dokiya, M [1 ]
Hashimoto, T [1 ]
机构：
[1] Yokohama Natl Univ, Inst Environm Sci & Technol, Hodogaya Ku, Yokohama, Kanagawa 240, Japan
来源：
SOLID OXIDE FUEL CELLS (SOFC VI) | 1999年 / 99卷 / 19期
关键词：
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Electrical Conductivity of GdyCe1-yO2-y/2-x(y=0.1,0.2), as a function of temperature and oxygen partial pressure, was measured with a complex impedance method. It is shown that the increase of electrical conductivity with reducing oxygen partial pressure can be described well by a model that assumes constant mobility of both oxygen vacancy and electron, based on ideal solution model of nonstoichiometry of Gd-doped ceria. Ionic conductivity is calculated and its activation energy is discussed. Electronic conductivity is discussed also.
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页码：193 / 200
页数：8
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