GdBaCo(2)O(5+delta)-Sm(0.2)Ce(0.8)O(1.9) composite cathodes for intermediate temperature SOFCs

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	GdBaCo(2)O(5+delta)-Sm(0.2)Ce(0.8)O(1.9) composite cathodes for intermediate temperature SOFCs
	N. Li ; B. Wei ; Z. Lu ; X. Q. Huang ; W. H. Su
刊名	Journal of Alloys and Compounds
	2011
卷号	509 期号:8 页码:3651-3655
关键词	Intermediate-temperature SOFC Composite cathodes GdBaCo(2)O(5+delta) Thermal expansion Electrochemical performance solid oxide fuel gdbaco2o5+x layered perovskite thermal-expansion electrochemical performance electrical-properties it-sofcs cells gd
ISSN号	0925-8388
中文摘要	The GdBaCo(2)O(5+delta)-Sm(0.2)Ce(0.8)O(1.9) (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.
原文出处	://WOS:000287570200041
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/30476]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	N. Li,B. Wei,Z. Lu,et al. GdBaCo(2)O(5+delta)-Sm(0.2)Ce(0.8)O(1.9) composite cathodes for intermediate temperature SOFCs[J]. Journal of Alloys and Compounds,2011,509(8):3651-3655.
APA	N. Li,B. Wei,Z. Lu,X. Q. Huang,&W. H. Su.(2011).GdBaCo(2)O(5+delta)-Sm(0.2)Ce(0.8)O(1.9) composite cathodes for intermediate temperature SOFCs.Journal of Alloys and Compounds,509(8),3651-3655.
MLA	N. Li,et al."GdBaCo(2)O(5+delta)-Sm(0.2)Ce(0.8)O(1.9) composite cathodes for intermediate temperature SOFCs".Journal of Alloys and Compounds 509.8(2011):3651-3655.