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题名: Test on the degradation of direct methanol fuel cell
作者: Chen, WM;  Sun, GQ;  Guo, JS;  Zhao, XS;  Yan, SY;  Tian, J;  Tang, SH;  Zhou, ZH;  Xin, Q
关键词: direct methanol fuel cell (DMFC) ;  life-test ;  electrocatalyst ;  performance degradation ;  electrochemical area (ECA)
刊名: ELECTROCHIMICA ACTA
发表日期: 2006-02-25
DOI: 10.1016/j.electacta.2005.07.016
卷: 51, 期:12, 页:2391-2399
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Electrochemistry
研究领域[WOS]: Electrochemistry
英文摘要: A 500 h life-test of direct methanol fuel cell (DMFC) was conducted in a single cell. X-ray diffraction (XRD) and transmission electron microscopy (TEM) images showed that after life-test, the particle size of electrocatalysts increased both in anode and cathode, and the degree is higher in cathode. Electrochemical areas (ECAs) of anode and cathode catalyst were evaluated by CO-stripping and hydrogen-desorption test, respectively. It was found that the ECA loss is higher than the specific surface area (SSA) loss (determined by XRD) that merely due to the sintering of the electrocatalyst particles. Energy dispersive X-ray analysis (EDX) revealed a crossover of ruthenium from the anode side to the cathode side in the cell. (c) 2005 Elsevier Ltd. All rights reserved.
关键词[WOS]: AC-IMPEDANCE SPECTROSCOPY ;  OXIDATION ;  PLATINUM ;  CATALYST ;  ELECTROCATALYST ;  PERFORMANCE ;  SURFACES ;  ANODE ;  BLACK ;  DMFC
语种: 英语
WOS记录号: WOS:000236019600001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139944
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, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Chen, WM,Sun, GQ,Guo, JS,et al. Test on the degradation of direct methanol fuel cell[J]. ELECTROCHIMICA ACTA,2006,51(12):2391-2399.
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