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
收藏
页码：197 / 200
页数：4
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