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题名: The effect of different valency cations on DMFC performance
作者: Jie, Xiao1, 2;  Shao, Zhi-Gang1;  Yi, Baolian1
通讯作者: 邵志刚
关键词: Direct methanol fuel cell (DMFC) ;  Cationic impurity ;  Single electrode potential ;  Ion transport
刊名: ELECTROCHEMISTRY COMMUNICATIONS
发表日期: 2010-05-01
DOI: 10.1016/j.elecom.2010.03.010
卷: 12, 期:5, 页:700-702
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 301
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Electrochemistry
研究领域[WOS]: Electrochemistry
英文摘要: An in situ study of the effects of Na(+), Mg(2+) and Cr(3+) on direct methanol fuel cell (DMFC) performance is reported. The result showed that dramatic decrease of the cell voltage was mainly ascribed to the increase of the cathode overpotential. Meanwhile, the different contamination effects by introducing Na(+), Mg(2+) and Cr(3+) to the anode and the cathode were compared. When the same molar concentration of different cations was added to the anode feed, the contamination effect on the cell performance followed the order of Na(+) > Mg(2+) > Cr(3+). Owing to the fast transfer speed and the low affinity to the sulfonic acid groups in the ionomer phase, the low-valent cations may cause much more proton losses than the high-valent cations in the cathode catalyst layer (CCL) within the same time. So the low-valent cations led to the higher cathode overpotential than the high-valent cations. When the same molar concentration of cations was directly added to the CCL, the contamination effects on the cell voltage showed an opposite trend which is Na(+)
关键词[WOS]: EXCHANGE MEMBRANE ;  TEMPERATURE ;  IMPURITY ;  ION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000278218700024
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/103635
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, Fuel Cell Syst & Engn Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Jie, Xiao,Shao, Zhi-Gang,Yi, Baolian. The effect of different valency cations on DMFC performance[J]. ELECTROCHEMISTRY COMMUNICATIONS,2010,12(5):700-702.
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