Investigation of LSM1.1-ScSZ composite cathodes for anode-supported solid oxide fuel cells

	Investigation of LSM1.1-ScSZ composite cathodes for anode-supported solid oxide fuel cells
	Wang, ZW ; Cheng, MJ ; Dong, YL ; Zhang, M ; Zhang, HM
刊名	solid state ionics
	2005-11-15
卷号	176 期号:35-36 页码:2555-2561
关键词	ScSZ LSM1.1 composite cathode anode-supported SOFCs
通讯作者	程谟杰
产权排序	1;1
英文摘要	la0.8sr0.2mn1.1o3 (lsm1.1)-10 mol% sc2o3-stabilized zro2 co-doped with ceo2 (scsz) composite cathodes were investigated for anode-supported solid oxide fuel cells (sofcs) with thin 8 mol% y2o3-stabilized zro2 (ysz) electrolyte. x-ray diffraction (xrd) results indicated that the scsz electrolytes displayed good chemical compatibility with the nonstoichiometric lsm1.1 against co-firing at 1300 degrees c. increasing the ceo2 content in the scsz electrolytes dramatically suppressed the electrode polarization resistance, which may be related to the improved surface oxygen exchange or the enlarged active area of cathode. the 5ce10sczr was the best electrolyte for the composite cathodes, which caused a small ohmic resistance decrease and the reduced polarization resistance and brought about the highest cell performance. the cell performances at lower temperatures seemed to rely on the electrode polarization resistance more seriously, than the ohmic resistance. compared with the cell impedance at higher temperatures, the higher the 5ce10sczr proportion in the composite cathodes, the smaller the increment of the charge transfer resistance at lower temperatures. the anode-supported sofc with the lsm1.1-5ce10sczr (60:40) composite cathode achieved the maximum power densities of 0.82 w/cm(2) at 650 degrees c and 2.24 w/cm(2) at 800 degrees c, respectively. (c) 2005 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, physical ; physics, condensed matter
研究领域[WOS]	chemistry ; physics
关键词[WOS]	electrochemical performance ; polarization behavior ; current collector ; o-2 reduction ; sofc ; electrolytes ; interface ; conductivity ; electrodes ; impedance
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000233260500004
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/93275]
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	Wang, ZW,Cheng, MJ,Dong, YL,et al. Investigation of LSM1.1-ScSZ composite cathodes for anode-supported solid oxide fuel cells[J]. solid state ionics,2005,176(35-36):2555-2561.
APA	Wang, ZW,Cheng, MJ,Dong, YL,Zhang, M,&Zhang, HM.(2005).Investigation of LSM1.1-ScSZ composite cathodes for anode-supported solid oxide fuel cells.solid state ionics,176(35-36),2555-2561.
MLA	Wang, ZW,et al."Investigation of LSM1.1-ScSZ composite cathodes for anode-supported solid oxide fuel cells".solid state ionics 176.35-36(2005):2555-2561.