GdBaCo2O5+delta-Sm0.2Ce0.8O1.9 composite cathodes for intermediate temperature SOFCs

doi:10.1016/j.jallcom.2010.12.147

IMR OpenIR

	GdBaCo2O5+delta-Sm0.2Ce0.8O1.9 composite cathodes for intermediate temperature SOFCs
	Li, Na 1; Wei, Bo 1; Lue, Zhe 1; Huang, Xiqiang 1; Su, Wenhui 1,2
通讯作者	Wei, Bo(bowei@hit.edu.cn)
	2011-02-24
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	509 期号:8 页码:3651-3655
摘要	The GdBaCo2O5+delta-Sm0.2Ce0.8O1.9 (GBCO-SDC) composite cathodes were prepared, their thermogravimetric measurement, thermal expansion coefficient (TEC), electrical conductivity and electrochemical performance were studied as function of temperature and SDC content. The adjustment of TEC to electrolyte, which is one of the main problems of GBCO cathode, could be achieved to lower TEC values with more SDC addition, while maintaining reasonable high electrical conductivity. By means of DC polarization and AC impedance spectroscopy, the electrochemical performance of GBCO-SDC composite cathodes on SDC electrolyte was examined. Results indicated that the proper addition of SDC could improve the performance of GBCO cathode. The optimum content of SDC in the composite cathodes was 40 wt.% with the polarization resistance (Rp) of 1.39 Omega cm(2) at 500 degrees C, which was significantly lower than that of pure GBCO cathode (7.26 Omega cm(2)). (C) 2010 Elsevier B.V. All rights reserved.
关键词	Intermediate-temperature SOFC Composite cathodes GdBaCo2O5+delta Thermal expansion Electrochemical performance
资助者	Natural Science Foundation of China ; Ministry of Science and Technology of China
DOI	10.1016/j.jallcom.2010.12.147
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of China[20901020] ; Ministry of Science and Technology of China[2007AA05Z139]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000287570200041
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/106967
专题	中国科学院金属研究所
通讯作者	Wei, Bo
作者单位	1.Harbin Inst Technol, Dept Phys, Ctr Condensed Matter Sci & Technol, Harbin 150080, Peoples R China 2.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
推荐引用方式 GB/T 7714	Li, Na,Wei, Bo,Lue, Zhe,et al. GdBaCo2O5+delta-Sm0.2Ce0.8O1.9 composite cathodes for intermediate temperature SOFCs[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2011,509(8):3651-3655.
APA	Li, Na,Wei, Bo,Lue, Zhe,Huang, Xiqiang,&Su, Wenhui.(2011).GdBaCo2O5+delta-Sm0.2Ce0.8O1.9 composite cathodes for intermediate temperature SOFCs.JOURNAL OF ALLOYS AND COMPOUNDS,509(8),3651-3655.
MLA	Li, Na,et al."GdBaCo2O5+delta-Sm0.2Ce0.8O1.9 composite cathodes for intermediate temperature SOFCs".JOURNAL OF ALLOYS AND COMPOUNDS 509.8(2011):3651-3655.