A bi-layered composite cathode of La0.8Sr0.2MnO3-YSZ and La0.8Sr0.2MnO3-La0.4Ce0.6O1.8 for IT-SOFCs

	A bi-layered composite cathode of La0.8Sr0.2MnO3-YSZ and La0.8Sr0.2MnO3-La0.4Ce0.6O1.8 for IT-SOFCs
	Zhang, Min 1,2; Yang, Min 1,2; Hou, Zhifang 1; Dong, Yonglai 1; Cheng, Mojie 1
刊名	electrochimica acta
	2008-06-01
卷号	53 期号:15 页码:4998-5006
关键词	bi-layered composite cathode La0.8Sr0.2MnO3 La0.4Ce0.6O1.8 YSZ solid oxide fuel cells
ISSN号	0013-4686
通讯作者	程谟杰
产权排序	1;1
英文摘要	a bi-layered composite cathode of la0.8sr0.2mno3 (lsm)-ysz and lsm-la0.4ce0.6o1.8 (ldc) was fabricated for anode-supported solid oxide fuel cells with a thin ysz electrolyte film. the cell with the bi-layered composite cathode displayed better performance than the cell with the corresponding single-layered composite cathode of lsm-ldc or lsm-ysz. at 650 degrees c, the cell with the bi-layered composite cathode gave a higher maximum power density than the cells with the single-layered lsm-ldc and lsm-ysz composite cathodes, by 52% and 175%, respectively. the impedance spectra results show that the thin lsm-ysz interlayer not only improves the cathode/electrolyte interface but also reduces the polarization resistance of the cathode. the activation energy for oxygen reduction on the bi-layered composite cathode is much smaller than that on lsm-ysz composite cathode, and it is suggested that the special redox property of ce4+/ce3+ in ldc facilitates the oxygen reduction process on the bi-layered composite cathode. the cell with the bi-layered composite cathode operated quite stably during a 100 h run. (c) 2008 elsevier ltd. all rights reserved.
WOS标题词	science & technology ; physical sciences
类目[WOS]	electrochemistry
研究领域[WOS]	electrochemistry
关键词[WOS]	oxide fuel-cells ; yttria-stabilized zirconia ; impedance spectroscopy ; intermediate-temperature ; ysz electrolyte ; ac-impedance ; doped ceria ; performance ; polarization ; interlayer
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000255706500007
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/101205]
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 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Min,Yang, Min,Hou, Zhifang,et al. A bi-layered composite cathode of La0.8Sr0.2MnO3-YSZ and La0.8Sr0.2MnO3-La0.4Ce0.6O1.8 for IT-SOFCs[J]. electrochimica acta,2008,53(15):4998-5006.
APA	Zhang, Min,Yang, Min,Hou, Zhifang,Dong, Yonglai,&Cheng, Mojie.(2008).A bi-layered composite cathode of La0.8Sr0.2MnO3-YSZ and La0.8Sr0.2MnO3-La0.4Ce0.6O1.8 for IT-SOFCs.electrochimica acta,53(15),4998-5006.
MLA	Zhang, Min,et al."A bi-layered composite cathode of La0.8Sr0.2MnO3-YSZ and La0.8Sr0.2MnO3-La0.4Ce0.6O1.8 for IT-SOFCs".electrochimica acta 53.15(2008):4998-5006.