MIXED CONDUCTIVITY IN SRCE0.95YB0.05O3 PROTONIC CONDUCTORS

被引：109

作者：

KOSACKI, I ^{[1
]}

TULLER, HL ^{[1
]}

机构：

[1] MIT,DEPT MAT SCI & ENGN,CRYSTAL PHYS & ELECTRCERAM LAB,CAMBRIDGE,MA 02139

来源：

SOLID STATE IONICS | 1995年 / 80卷 / 3-4期

关键词：

IONIC CONDUCTIVITY - PROTON; MIXED CONDUCTOR; CERIUM OXIDE;

D O I：

10.1016/0167-2738(95)00142-S

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 results of electrical conductivity measurements on SrCe0.95Yb0.05O3 under controlled oxygen partial pressure and temperature are presented. A defect model consistent with experimental results is proposed which provides for p(O2)(-1/4) dependent n-type, P-O2-independent oxygen ion and p(O2)(+1/4) dependent p-type conductivity components. The band gap, reduction, oxidation and ion-migration energies are determined from an analysis of the data in terms of the proposed defect model. These results suggest that some earlier data interpreted in terms of protonic conduction may require re-evaluation.

引用

页码：223 / 229

页数：7

共 29 条

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