BULK AND ELECTROCHEMICAL PROPERTIES OF BIVO4

被引：70

作者：

VINKE, IC ^{[1
]}

DIEPGROND, J ^{[1
]}

BOUKAMP, BA ^{[1
]}

DEVRIES, KJ ^{[1
]}

BURGGRAAF, AJ ^{[1
]}

机构：

[1] UNIV TWENTE,DEPT CHEM TECHNOL,INORGAN CHEM MAT SCI & CATALYSIS LAB,POB 217,7500 AE ENSCHEDE,NETHERLANDS

来源：

SOLID STATE IONICS | 1992年 / 57卷 / 1-2期

关键词：

D O I：

10.1016/0167-2738(92)90067-Y

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 mixed (oxygen ionic-electronic) conductor bismuth vanadate (BiVO4) was studied with respect to its electrochemical Properties. The ionic transference numbers, measured by the concentration cell method in the temperature range of 800 to 1000 K, vary from 0.7 to 0.3. The total conductivity of this ceramic material is one order of magnitude lower than found for cubic yttria-stabilized zirconia (YSZ). The activation enthalpy for the electronic conductivity is high (193 kJ/mol) compared to the ionic conductivity (71 kJ/mol). The P(O2) dependency of the conductivity data in combination with the Seebeck measurements showed electrons to be the majority charge carriers, indicating that BiVO4 is an n-type mixed conductor.

引用

页码：83 / 89

页数：7

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