Comparison between Y-doped ceria and Ho-doped ceria: Electrical conduction and microstructures

被引：12

作者：

Ou, Ding Rong ^{[1
]}

Mori, Toshiyuki ^{[1
]}

Ye, Fel ^{[1
]}

Zou, Jin ^{[2
,3
]}

Drennan, John ^{[3
]}

机构：

[1] Natl Inst Mat Sci, Fuel Cell Mat Ctr, Tsukuba, Ibaraki 3050044, Japan

[2] Univ Queensland, Sch Engn, St Lucia, Qld 4072, Australia

[3] Univ Queensland, Ctr Microscopy & Microanal, St Lucia, Qld 4072, Australia

来源：

RENEWABLE ENERGY | 2008年 / 33卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

microstructure; electrical properties; rare-earth oxides; solid electrolyte; fuel cell; TEM;

D O I：

10.1016/j.renene.2007.05.005

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The electrical conduction and microstructure in Y-doped ceria and Ho-doped ceria were investigated. Visible differences between the two doped ceria were observed. The plots of conductivity of Y-doped ceria are well fit to the Arrhenius behavior, while curvature and kinks were observed on the plots of Ho-doped ceria. Such deviation from the Arrhenius behavior could be related to the existence of precipitates in Ho-doped ceria. It indicates that the electrolytic conductivity of doped ceria could be significantly influenced by microstructure features. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：197 / 200

页数：4

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