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题名: A highly active PtNi/C electrocatalyst for methanol electro-oxidation in alkaline media
作者: Jiang, Qian1, 2;  Jiang, Luhua1;  Wang, Suli1;  Qi, Jing1, 2;  Sun, Gongquan1
关键词: Electrocatalyst ;  Methanol oxidation ;  Platinum-nickel ;  Carbon monoxide ;  DFT
刊名: CATALYSIS COMMUNICATIONS
发表日期: 2010-10-25
DOI: 10.1016/j.catcom.2010.08.001
卷: 12, 期:1, 页:67-70
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: A carbon supported PtNi/C electrocatalyst synthesized via a polyol process was characterized by XRD, TEM and voltammetry techniques. The XRD analysis showed a decreased lattice constant of Pt for the PtNi/C catalyst compared with the Pt/C. indicating partial PtNi alloy formed. The PtNi/C exhibited enhanced mass activity towards methanol oxidation reaction as well as decreased CO stripping currents in alkaline media compared with the Pt/C. Density functional theory studies revealed the electronic structure modification of Pt by Ni atoms and weakened CO adsorption energy on the Pt(3)Ni than on the Pt(4) clusters, which may account for the increased MOR activity. Crown Copyright (C) 2010 Published by Elsevier By. All rights reserved.
关键词[WOS]: ANION-EXCHANGE MEMBRANES ;  FUEL-CELLS ;  CARBON-MONOXIDE ;  NI ;  NANOPARTICLES ;  OXIDATION ;  CATALYSTS ;  PLATINUM ;  DENSITY ;  ATOMS
语种: 英语
WOS记录号: WOS:000283447300015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141642
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, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

Recommended Citation:
Jiang, Qian,Jiang, Luhua,Wang, Suli,et al. A highly active PtNi/C electrocatalyst for methanol electro-oxidation in alkaline media[J]. CATALYSIS COMMUNICATIONS,2010,12(1):67-70.
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