BICUVOF: a new copper fluoride doped BIMEVOX

被引：5

作者：

Abrahams, I

Nelstrop, JAG

Krok, F

机构：

[1] Univ London Queen Mary & Westfield Coll, Dept Chem, Struct Chem Grp, London E1 4NS, England

[2] Warsaw Univ Technol, Fac Phys, PL-00662 Warsaw, Poland

来源：

SOLID STATE IONICS | 2000年 / 136卷

关键词：

oxide ion conductor; BIMEVOX; BICUVOF;

D O I：

10.1016/S0167-2738(00)00352-0

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 relationship between conductivity and structure has been investigated in a new CuF2 substituted BIMEVOX, Bi2V1-xCuxO5.5-5x/2F2x, 0.10 less than or equal to x less than or equal to 0.20 (BICUVOF). The system has been characterised by X-ray powder diffraction and ac impedance spectroscopy, BICUVOF samples, in the compositional range studied, all show the tetragonal gamma -phase structure when quenched from high temperature, however, there is evidence in the conductivity data of phase transitions associated with ordering phenomena at various temperatures. A large drop in conductivity is observed on solid solution formation. These observations are consistent with a mixed anion effect analogous to the mixed ion effect seen in cation conducting systems. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：61 / 66

页数：6

共 17 条

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