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题名: Kinetics of the Electrochemical Reduction of Oxygen on the La0.8Sr0.2MnO3/YSZ Electrode
作者: Wang Shizhong1;  Jiang Yi1;  Li Wenzhao1;  Yan Jingwang1
关键词: Strontinum doped lanthanum manganite ;  Electrochemical reduction of oxygen ;  Solid oxide fuel cell ;  Oxygen vacancy
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 1997
DOI: 10.3866/PKU.WHXB19970808
卷: 13, 期:8, 页:717-724
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Electrochemical reduction of oxygen on the La0.8Sr0.2MnO3/YSZ Electrode has been investigated in detail with methods of Low Field Polarization, Cyclic Voltammetry and Potential Step. The results demonstrate that the reduction of oxygen on the LSM+YSZ cathode takes place through two pathways: at low temperatures oxygen reduction takes place at Three Phase Boundary (TPB), in which case the rate determining step is the diffusion of atomic oxygen from the LSM surface to TPB, while at high temperatures the reaction area extends over the whole surface of the LSM electrode and the rate determining step is the charge transfer step. It has also been found that the formation of oxygen vacancy is affected by reaction temperature, oxygen pressure and cathodic potential applied. Oxygen vacancy plays an important role in the electrochemical reduction of oxygen at high temperatures and high oxygen partial pressures.
语种: 英语
WOS记录号: WOS:000207601800008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142813
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

Recommended Citation:
Wang Shizhong,Jiang Yi,Li Wenzhao,et al. Kinetics of the Electrochemical Reduction of Oxygen on the La0.8Sr0.2MnO3/YSZ Electrode[J]. ACTA PHYSICO-CHIMICA SINICA,1997,13(8):717-724.
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