Trivalent rare earth ion conduction in the scandium tungstate type structure

被引：18

作者：

Imanaka, N ^{[1
]}

Tamura, S ^{[1
]}

Kobayashi, Y ^{[1
]}

Okazaki, Y ^{[1
]}

Hiraiwa, M ^{[1
]}

Ueda, T ^{[1
]}

Adachi, G ^{[1
]}

机构：

[1] Osaka Univ, Fac Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2000年 / 303卷

基金：

日本学术振兴会;

关键词：

rare earths; trivalent; ion conduction; solid electrolyte; tungstate; molybdate;

D O I：

10.1016/S0925-8388(00)00590-9

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：

From the consideration of the mobile trivalent ions and the structure which reduces the electrostatic interaction between the framework and the mobile trivalent ionic species as much as possible, a trivalent-ion conduction in solids was successfully realized with the Sc-2(WO4)(3)-type structure. Among the molybdates and the tungstates with the Sc-2(WO4)(3)-type structure, Sc-2(WO4)(3)and Sc-2(MoO4)(3) were found to be of the most suitable size for the trivalent-ion conduction in the tungstate and the molybdate series, respectively. By a de electrolysis, the mobile species was clearly demonstrated to be a trivalent ion in the Sc,(WO,),-type structure. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：303 / 306

页数：4

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