Mitigation of the deleterious effect of silicon species on the conductivity of ceria electrolytes

被引：47

作者：

Lane, J. A. ^{[1
]}

Neff, J. L. ^{[1
]}

Christie, G. M. ^{[1
]}

机构：

[1] Praxair Inc, Tonawanda, NY 14150 USA

来源：

SOLID STATE IONICS | 2006年 / 177卷 / 19-25期

关键词：

ceria electrolyte; silicon; conductivity; alkaline earth; grain boundary;

D O I：

10.1016/j.ssi.2006.02.024

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 deleterious effect of silicon species on the conductivity of ceria electrolytes is well documented in the literature. A simple process has been developed at Praxair that alleviates the negative effect of high concentrations of silicon species on the conductivity of ceria electrolytes. The impact of this process on the conductivity of commercially available doped ceria electrolyte powders is demonstrated and a likely mechanism for the reduction of the resistivity is proposed. The influence of this process on other properties of the ceria electrolyte is discussed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1911 / 1915

页数：5

共 8 条

[1] An investigation of conductivity, microstructure and stability of electrolyte compositions in the system 9 mol% (Sc2O3-Y2O3)-ZrO2(Al2O3) [J].