Thermal behaviour and polymorphism of BIMEVOX oxide ion conductors including the new materials: Bi4V2O11:M; M=La, Y, Mg, B

被引：63

作者：

Lee, CK ^{[1
]}

West, AR ^{[1
]}

机构：

[1] UNIV ABERDEEN,DEPT CHEM,ABERDEEN AB9 2UE,SCOTLAND

来源：

SOLID STATE IONICS | 1996年 / 86-8卷

关键词：

BIMEVOX; ion conductors; polymorphism;

D O I：

10.1016/0167-2738(96)00132-4

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 BIMEVOX materials can be prepared in four polymorphic modifications: alpha, beta, gamma, gamma', depending on Bi:V ratio and the nature/concentration of dopant. Polymorphic transitions take place on heat/cool cycles and can be detected by DTA and by variations in conductivity Arrhenius plots. A survey of thermal behaviour is given, using as examples several new conductivity values at 300 degrees C are: Bi4V1.8Mg0.2O10.70, 1.1 X 10(-3) Ohm(-1) cm(-1); Bi4V1.8La0.2O10.8, 1.4 X 10(-4) Ohm(-1) cm(-1); Bi4V1.8Y0.2O10.8, 1.0 X 10(-4) Ohm(-1) cm(-1); Bi4V1.8B0.2O10.8, 2.0 X 10(-5) Ohm(-1) cm(-1).

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页码：235 / 239

页数：5

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