Hollow core supported Pt monolayer catalysts for oxygen reduction

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	Hollow core supported Pt monolayer catalysts for oxygen reduction
	Zhang, Y ; Ma, C ; Zhu, YM ; Si, R ; Cai, Y ; Wang, JX ; Adzic, RR
刊名	CATALYSIS TODAY
	2013
卷号	202 页码:50
关键词	Pt monolayer Hollow nanoparticle Oxygen reduction catalyst Fuel cell Galvanic replacement Kirkendall effect
ISSN号	0920-5861
通讯作者	Adzic, RR (reprint author), Brookhaven Natl Lab, Dept Chem, Bldg 555,POB 5000, Upton, NY 11973 USA.
中文摘要	We synthesized high-activity electrocatalysts for the oxygen reduction reaction comprising a Pt monolayer shell on compact hollow nanoparticles. Pulse electrodeposited Ni nanoparticles were replaced galvanically by Pd and Pd-Au ions to obtain corresponding hollow nanoparticles. Pt monolayer catalysts supported on such hollow cores exhibited total-metal mass activities ranging from 0.41 to 0.57 A mg(-1), doubling that of 0.25 A mg(-1) for Pt monolayer catalysts on solid Pd cores. We attribute this enhanced activity to the smooth surface morphology and hollow-induced lattice contraction, in addition to the mass-saving geometry of hollow particles. (C) 2012 Elsevier B.V. All rights reserved.
资助信息	U.S. Department of Energy, Divisions of Chemical and Material Sciences [DE-AC02-98CH10886]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57089]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhang, Y,Ma, C,Zhu, YM,et al. Hollow core supported Pt monolayer catalysts for oxygen reduction[J]. CATALYSIS TODAY,2013,202:50.
APA	Zhang, Y.,Ma, C.,Zhu, YM.,Si, R.,Cai, Y.,...&Adzic, RR.(2013).Hollow core supported Pt monolayer catalysts for oxygen reduction.CATALYSIS TODAY,202,50.
MLA	Zhang, Y,et al."Hollow core supported Pt monolayer catalysts for oxygen reduction".CATALYSIS TODAY 202(2013):50.