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题名: Electrochemical impedance investigation of the redox behaviour of a Ni-YSZ anode
作者: Liu, Bin;  Zhang, Yun;  Tu, Baofeng;  Dong, Yonglai;  Cheng, Mojie
关键词: Ni-YSZ anode ;  ohmic resistance ;  reoxidation ;  reduction ;  NiO
刊名: JOURNAL OF POWER SOURCES
发表日期: 2007-02-25
DOI: 10.1016/j.jpowsour.2006.11.052
卷: 165, 期:1, 页:114-119
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: The reoxidation and reduction of a Ni-YSZ anode were investigated by monitoring the variation of ohmic resistance and the open circuit voltage of anode supported cells using electrochemical impedance spectroscopy. The ohmic resistance curves showed that anode reoxidation could be largely divided into three stages: an initial stage with a slow increase of ohmic resistance, a quick oxidation stage with a sharp increase in ohmic resistance and a final stage with a slight decrease of ohmic resistance. Reoxidation at 800 degrees C was a rapid process with a short initial stage, whereas reoxidation at 500 degrees C did not proceed in the last two stages. The OCV curves showed that reoxidation above 600 degrees C caused cracking of the YSZ electrolyte film. (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: OXIDE FUEL-CELLS ;  FILM YSZ ;  PERFORMANCE ;  REDUCTION ;  CONDUCTIVITY ;  TEMPERATURE ;  OXIDATION ;  CERMET ;  SOFCS
语种: 英语
WOS记录号: WOS:000245093800017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140702
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Grad Univ, Chinese Acad Sci, Beijing, Peoples R China

Recommended Citation:
Liu, Bin,Zhang, Yun,Tu, Baofeng,et al. Electrochemical impedance investigation of the redox behaviour of a Ni-YSZ anode[J]. JOURNAL OF POWER SOURCES,2007,165(1):114-119.
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