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
	2008
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	448 期号:1-2 页码:116-121
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.
部门归属	[li, shuyan; lue, zhe; wei, bo; huang, xiqiang; miao, jipeng; liu, zhiguo; su, wenhui] harbin inst technol, ctr condensed matter sci & technol, harbin 150001, peoples r china. [li, shuyan; lue, zhe; wei, bo; huang, xiqiang; miao, jipeng; liu, zhiguo; su, wenhui] heilongjiang prov univ, harbin inst technol, key lab condensed matter sci & technol, harbin 150001, peoples r china. [su, wenhui] jilin univ, dept condensed matter phys, changchun 130023, peoples r china. [su, wenhui] acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;li, sy (reprint author), harbin inst technol, ctr condensed matter sci & technol, harbin 150001, peoples r china;lsy6l4@21cn.com suwenhui@hit.edu.cn
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
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WOS记录号	WOS:000252373600024
引用统计	被引频次：62[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/321006/32894
专题	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.