Investigation of Ba1-xSrxCo0.8Fe0.2O3-delta as cathodes for low-temperature solid oxide fuel cells both in the absence and presence of CO2

	Investigation of Ba1-xSrxCo0.8Fe0.2O3-delta as cathodes for low-temperature solid oxide fuel cells both in the absence and presence of CO2
	Yan, Aiyu 1,2; Yang, Min 1,2; Hou, Zhifang 1; Dong, Yonglai 1; Cheng, Mojie 1
刊名	journal of power sources
	2008-10-15
卷号	185 期号:1 页码:76-84
关键词	Ba1-xSrxCo0.8Fe0.2O3-delta Solid oxide fuel cell Cathode Carbon dioxide
英文摘要	ba1-xsrxco0.8fe0.2o3-delta (bscf)(0 <= x <= 1) composite oxides were prepared and tested as cathodes for low-temperature solid oxide fuel cells (sofcs) both in the absence and presence of co2. it is found that the bscf cathodes in the whole range of strontium (loping levels show promising performance at 500-600 degrees c in the absence of co2, among which the srco0.8fe0.2o3-delta (scf) cathode gives the highest power density while baco0.8fe0.2o3-delta (bcf) cathode shows the lowest performance. the impedance analysis reveals that both the ohmic resistance and polarization resistance of the fuel cell increases when the strontium content decreases. it is believed that the microstructure and electrical conductivity simultaneously affect the process of oxygen reduction. the presence of co2 deteriorates the bscf performance by adsorbing on the cathode surface and thus obstructing the oxygen surface exchange reaction. the co2 exerts a more intense influence on bscf with higher barium content. (c) 2008 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	electrochemistry ; energy & fuels
研究领域[WOS]	electrochemistry ; energy & fuels
关键词[WOS]	it-sofc ; perovskite oxides ; ba0.5sr0.5co0.8fe0.2o3-delta perovskite ; impedance spectroscopy ; performance evaluation ; electrical-properties ; oxygen-transport ; ethanol ; optimization ; electrolyte
收录类别	SCI
语种	英语
WOS记录号	WOS:000259906600012
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/140950]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Yan, Aiyu,Yang, Min,Hou, Zhifang,et al. Investigation of Ba1-xSrxCo0.8Fe0.2O3-delta as cathodes for low-temperature solid oxide fuel cells both in the absence and presence of CO2[J]. journal of power sources,2008,185(1):76-84.
APA	Yan, Aiyu,Yang, Min,Hou, Zhifang,Dong, Yonglai,&Cheng, Mojie.(2008).Investigation of Ba1-xSrxCo0.8Fe0.2O3-delta as cathodes for low-temperature solid oxide fuel cells both in the absence and presence of CO2.journal of power sources,185(1),76-84.
MLA	Yan, Aiyu,et al."Investigation of Ba1-xSrxCo0.8Fe0.2O3-delta as cathodes for low-temperature solid oxide fuel cells both in the absence and presence of CO2".journal of power sources 185.1(2008):76-84.