Electrochemically synthesized Cu/Pt core-shell catalysts on a porous carbon electrode for polymer electrolyte membrane fuel cells

	Electrochemically synthesized Cu/Pt core-shell catalysts on a porous carbon electrode for polymer electrolyte membrane fuel cells
	Wei, Z. D.1,2; Feng, Y. C.1; Li, L.1,3; Liao, M. J.1; Fu, Y.1; Sun, C. X.2; Shao, Z. G.4; Shen, P. K.5
刊名	journal of power sources
	2008-05-15
卷号	180 期号:1 页码:84-91
关键词	core-shell catalyst PEMFC electrodeposition electrocatalysis platinum
通讯作者	z.d.wei
产权排序	7;7
英文摘要	a novel two-step method has been developed to efficiently prepare cu/pt core-shell structured catalysts for the first time. the cu is first electrodeposited on the surface of the porous carbon electrode (pce) and the deposited cu is then partially replaced by pt spontaneously. the addition of the thiourea (tu) along with the ph adjustment can tremendously reduce the self-dissolution of cu due to dissolved oxygen. the results show that cu/pt core-shell structured catalysts display very good activities even at very low pt loadings. the peak power density of a single cell using cu/pt core-shell structured catalysts is over 0.9 w cm(-1) at pt loadings as low as 0.24 mg cm(-2) on each cathode and anode. this study shows that it is possible to apply this method for fabrication various core-shell structured functional materials. (c) 2008 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	electrochemistry ; energy & fuels
研究领域[WOS]	electrochemistry ; energy & fuels
关键词[WOS]	oxygen-reduction ; electrocatalytic properties ; methanol oxidation ; loading electrodes ; pt nanoparticles ; platinum ; layer ; electrooxidation ; deposition ; arrays
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000256069900010
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/101349]
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.Chongqing Univ, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China 2.Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China 3.Chongqing Univ, Sch Mat Sci & Engn, Chongqing 400044, Peoples R China 4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 5.Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Wei, Z. D.,Feng, Y. C.,Li, L.,et al. Electrochemically synthesized Cu/Pt core-shell catalysts on a porous carbon electrode for polymer electrolyte membrane fuel cells[J]. journal of power sources,2008,180(1):84-91.
APA	Wei, Z. D..,Feng, Y. C..,Li, L..,Liao, M. J..,Fu, Y..,...&Shen, P. K..(2008).Electrochemically synthesized Cu/Pt core-shell catalysts on a porous carbon electrode for polymer electrolyte membrane fuel cells.journal of power sources,180(1),84-91.
MLA	Wei, Z. D.,et al."Electrochemically synthesized Cu/Pt core-shell catalysts on a porous carbon electrode for polymer electrolyte membrane fuel cells".journal of power sources 180.1(2008):84-91.