Performances of Ba0.5Sr0.5Co0.6Fe0.4O3-delta-Ce0.8Sm0.2O1.9 composite cathode materials for IT-SOFC

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	Performances of Ba0.5Sr0.5Co0.6Fe0.4O3-delta-Ce0.8Sm0.2O1.9 composite cathode materials for IT-SOFC
	S. Y. Li ; Z. Lu ; B. Wei ; X. Q. Huang ; J. P. Miao ; Z. G. Liu ; W. H. Su
刊名	Journal of Alloys and Compounds
	2008
卷号	448 期号:1-2 页码:116-121
关键词	X-ray diffraction ionic conduction electronic transport thermal analysis oxide fuel-cells electrical-properties stabilized zirconia temperature sofcs ba0.5sr0.5co0.8fe0.2o3-delta sm0.5sr0.5coo3 electrodes membranes
ISSN号	0925-8388
中文摘要	Composite materials Ba0.5Sr0.5Co0.6Fe0.4O3-delta (BSCF4)-Ce0.8Sm0.2O1.9 (SDC) (BSCF4-SDC) were prepared and characterized as cathode for intermediate temperature SOFC (IT-SOFC). The powder X-ray diffraction (XRD), thermal expansion coefficient (TEC), electrical conductivity and electrochemical property measurement were employed to study the materials. The XRD result proved the reaction between BSCF4 and SDC in BSCF4-SDC. The conductivity of BSCF4-SDC was higher than that of BSCF4; in additions the thermal expansion coefficient of the BSCF4-SDC was about 18% lower than BSCF4 from 30 to 800 degrees C in air. Polarization curves and impedance spectra measured at intermediate temperatures showed the BSCF4-SDC electrode yielded lower resistance values than that of BSCF4 electrode. And the addition of 30 wt% SDC to BSCF4 had the best electrochemical properties; e.g., polarization resistance of BSCF4-SDC30 was 0.298 Omega cm(2) at 550 degrees C, which was nearly 85% lower than that of BSCF electrode. (c) 2006 Elsevier B.V. All rights reserved.
原文出处	://WOS:000252373600024
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/32894]
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	S. Y. Li,Z. Lu,B. Wei,et al. Performances of Ba0.5Sr0.5Co0.6Fe0.4O3-delta-Ce0.8Sm0.2O1.9 composite cathode materials for IT-SOFC[J]. Journal of Alloys and Compounds,2008,448(1-2):116-121.
APA	S. Y. Li.,Z. Lu.,B. Wei.,X. Q. Huang.,J. P. Miao.,...&W. H. Su.(2008).Performances of Ba0.5Sr0.5Co0.6Fe0.4O3-delta-Ce0.8Sm0.2O1.9 composite cathode materials for IT-SOFC.Journal of Alloys and Compounds,448(1-2),116-121.
MLA	S. Y. Li,et al."Performances of Ba0.5Sr0.5Co0.6Fe0.4O3-delta-Ce0.8Sm0.2O1.9 composite cathode materials for IT-SOFC".Journal of Alloys and Compounds 448.1-2(2008):116-121.