Trivalent ion conducting solid electrolytes

被引:40
作者
Imanaka, N [1 ]
Kobayashi, Y [1 ]
Tamura, S [1 ]
Adachi, G [1 ]
机构
[1] Osaka Univ, Fac Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan
基金
日本学术振兴会;
关键词
rare earths; trivalent ion; ion conduction; aluminum; solid electrolyte; molybdates; tungstates;
D O I
10.1016/S0167-2738(00)00464-1
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
A trivalent ion conduction in solids was realized with Sc-2(WO4)(3)-type structure by the consideration of the stability and size of mobile trivalent ions and a structure to reduce the electrostatic interaction between the framework and the mobile ionic species as much as possible. Among the tungstates and the molybdates with the Sc-2(WO4)(3)-type structure, Sc-2(WO4)(3) and Sc-2(MoO4)(3) were found to hold the most suitable lattice size for trivalent ion migration in the individual series. By the de electrolysis and EPMA measurements, the mobile species was clearly identified to be trivalent ions in the Sc-2(WO4)(3)-type structure, (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:319 / 324
页数:6
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