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学科主题: 物理化学
题名: Facile synthesis of supported Pt-Cu nanoparticles with surface enriched Pt as highly active cathode catalyst for proton exchange membrane fuel cells
作者: Xu, Zhuang1, 3;  Zhang, Huamin1;  Liu, Sisi1, 3;  Zhang, Bingsen2;  Zhong, Hexiang1;  Su, Dang Sheng2
通讯作者: 张华民 ;  钟和香
关键词: Pt-Cu ;  Surface enriched Pt ;  Catalyst ;  Oxygen reduction reaction ;  Proton exchange membrane fuel cells
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2012-12-01
DOI: 10.1016/j.ijhydene.2012.09.050
卷: 37, 期:23, 页:17978-17983
收录类别: SCI
文章类型: Article
部门归属: DNL17
项目归属: DNL17
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: 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.
关键词[WOS]: OXYGEN REDUCTION REACTION ;  CORE-SHELL ;  ALLOY NANOPARTICLES ;  NI ;  ELECTROCATALYSTS ;  FE ;  ELECTROCHEMISTRY ;  PEMFCS
语种: 英语
WOS记录号: WOS:000311865700036
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/118207
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, Div Energy Storage, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Xu, Zhuang,Zhang, Huamin,Liu, Sisi,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.
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