Rare earth ion conduction in solids

被引：21

作者：

Adachi, G ^{[1
]}

Imanaka, N ^{[1
]}

Tamura, S ^{[1
]}

机构：

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

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2001年 / 323卷

关键词：

rare earths; Sc-2(WO4)(3); type; trivalent ion; solid electrolytes;

D O I：

10.1016/S0925-8388(01)01138-0

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 trivalent cation conductors of R-2(MO4)(3) (R: Al, Sc, Y, Er-Lu; M: W, Mo) polycrystals in the tungstate and the molybdate series were prepared and the trivalent R3+ conducting properties were investigated. The ion conductivity was found to be strongly dependent on the crystal lattice size and the highest conductivity was obtained in Sc-2(WO4)(3) and Sc-2(MoO4)(3). respectively, among each series. in addition, the relationship between the lattice size and R3+ ion conduction was also clarified by making various types of solid solutions and the enhancement of the objective R3+ ion conduction was successfully realized. The conducting species in these solid electrolytes was directly demonstrated to be trivalent Sc3+ cation by a de electrolysis. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：534 / 539

页数：6