The effect of different valency cations on DMFC performance

	The effect of different valency cations on DMFC performance
	Jie, Xiao 1,2; Shao, Zhi-Gang 1; Yi, Baolian 1
刊名	electrochemistry communications
	2010-05-01
卷号	12 期号:5 页码:700-702
关键词	Direct methanol fuel cell (DMFC) Cationic impurity Single electrode potential Ion transport
通讯作者	邵志刚
产权排序	1;1
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(+)
WOS标题词	science & technology ; physical sciences
类目[WOS]	electrochemistry
研究领域[WOS]	electrochemistry
关键词[WOS]	exchange membrane ; temperature ; impurity ; ion
收录类别	SCI
原文出处	false
语种	英语
WOS记录号	WOS:000278218700024
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/103635]
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, Fuel Cell Syst & Engn Lab, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Jie, Xiao,Shao, Zhi-Gang,Yi, Baolian. The effect of different valency cations on DMFC performance[J]. electrochemistry communications,2010,12(5):700-702.
APA	Jie, Xiao,Shao, Zhi-Gang,&Yi, Baolian.(2010).The effect of different valency cations on DMFC performance.electrochemistry communications,12(5),700-702.
MLA	Jie, Xiao,et al."The effect of different valency cations on DMFC performance".electrochemistry communications 12.5(2010):700-702.