Facile synthesis of supported Pt-Cu nanoparticles with surface enriched Pt as highly active cathode catalyst for proton exchange membrane fuel cells

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	Facile synthesis of supported Pt-Cu nanoparticles with surface enriched Pt as highly active cathode catalyst for proton exchange membrane fuel cells
	Z. Xu; H. M. Zhang; S. S. Liu; B. S. Zhang; H. X. Zhong; D. S. Su
	2012
发表期刊	International Journal of Hydrogen Energy
ISSN	0360-3199
卷号	37 期号:23 页码:17978-17983
摘要	Carbon supported Pt-Cu catalyst (PtCu/C) with surface enriched Pt was synthesized by annealing the Pt-deposited Cu particles. X-ray diffraction (XRD) results indicate the formation of disordered Pt-Cu alloy phase with a high level of Cu/Pt atomic ratio. X-ray photoelectron spectroscopy (XPS) and inductively coupled plasma (ICP) analysis confirm the surface enrichment of Pt. Electrochemical measurements show that PtCu/C has 3.7 times higher Pt mass activity toward the oxygen reduction reaction (ORR) than commercial Pt/C. The enhanced ORR activity of PtCu/C is attributed to the modified electronic properties of surface Pt atoms, which reduces the surface blocking of the ORR oxygenated species. Copyright (c) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
部门归属	[xu, zhuang; zhang, huamin; liu, sisi; zhong, hexiang] chinese acad sci, dalian inst chem phys, div energy storage, dalian 116023, peoples r china. [zhang, bingsen; su, dang sheng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [xu, zhuang; liu, sisi] chinese acad sci, grad sch, beijing 100039, peoples r china.;zhang, hm (reprint author), chinese acad sci, dalian inst chem phys, div energy storage, dalian 116023, peoples r china.;zhanghm@dicp.ac.cn; zhonghexiang@dicp.ac.cn
关键词	Pt-cu Surface Enriched Pt Catalyst Oxygen Reduction Reaction Proton Exchange Membrane Fuel Cells Oxygen Reduction Reaction Core-shell Alloy Nanoparticles Ni Electrocatalysts Fe Electrochemistry Pemfcs
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60374
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. Xu,H. M. Zhang,S. S. Liu,et al. Facile synthesis of supported Pt-Cu nanoparticles with surface enriched Pt as highly active cathode catalyst for proton exchange membrane fuel cells[J]. International Journal of Hydrogen Energy,2012,37(23):17978-17983.
APA	Z. Xu,H. M. Zhang,S. S. Liu,B. S. Zhang,H. X. Zhong,&D. S. Su.(2012).Facile synthesis of supported Pt-Cu nanoparticles with surface enriched Pt as highly active cathode catalyst for proton exchange membrane fuel cells.International Journal of Hydrogen Energy,37(23),17978-17983.
MLA	Z. Xu,et al."Facile synthesis of supported Pt-Cu nanoparticles with surface enriched Pt as highly active cathode catalyst for proton exchange membrane fuel cells".International Journal of Hydrogen Energy 37.23(2012):17978-17983.