Rare earth ion conduction in tungstate and phosphate solids

被引：20

作者：

Imanaka, N ^{[1
]}

Adachi, GY ^{[1
]}

机构：

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

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 344卷 / 1-2期

关键词：

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

D O I：

10.1016/S0925-8388(02)00352-3

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 quasi two-dimensional Sc-2(WO4)(3) type structure and the three-dimensional NASICON type R1/3Zr2(PO4)(3) (R=Al3+, rare earths) series were prepared and their trivalent ion conducting characteristics were compared. Among the Sc-2(WO4)(3) type and the NASICON type series, the solid electrolytes with Sc3+ as a migrating species show the highest ion conductivity. Especially, the NASICON type phosphate series holds such advantages of having a considerable high relative density and also more than seven times as high hardness compared with the Sc-2(WO4)(3) type series, promising applications for various types of devices are greatly expected. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：137 / 140

页数：4

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