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题名: Supported bimetallic PdAu nanoparticles with superior electrocatalytic activity towards methanol oxidation
作者: Yin, Zhen1;  Chi, Miaofang2;  Zhu, Qingjun3;  Ma, Ding4;  Sun, Junming5;  Bao, Xinhe6
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2013
DOI: 10.1039/c3ta11592e
卷: 1, 期:32, 页:9157-9163
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Energy & Fuels ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Materials Science
英文摘要: Monodispersed bimetallic PdAu nanoparticles with controlled composition are prepared by an emulsion-assisted synthetic strategy with ternary metal precursors in the surfactants of oleic acid and oleylamine. The PdAu nanoparticles are loaded on a carbon support, and their electrocatalytic activities are tested for methanol oxidation in alkaline media. The bimetallic PdAu nanoparticles show superior electrocatalytic activities for methanol oxidation compared with the pure Pd nanoparticles prepared by the same method. The most active Pd30Au70 nanoparticles, with significantly low Pd content, even show remarkably higher activities than the commercial Pt/C catalyst. Various characterization techniques such as TEM, XPS and UV-vis are applied to study the nature of the catalysts. It is concluded that the increased activity is dependant on the unique Pd-rich shell and Au-rich core structure of such bimetallic PdAu particles as well as the nature of the Pd species on the catalyst surface.
关键词[WOS]: TRANSMISSION ELECTRON-MICROSCOPY ;  ALCOHOL FUEL-CELLS ;  CATALYTIC-ACTIVITY ;  HYDROGEN-PEROXIDE ;  OXYGEN REDUCTION ;  ALKALINE MEDIA ;  ELECTROCHEMICAL OXIDATION ;  ALLOY ELECTROCATALYSTS ;  PALLADIUM CATALYSTS ;  AU
语种: 英语
WOS记录号: WOS:000322121300021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137669
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.Tianjin Polytech Univ, Sch Environm & Chem Engn, Tianjin 300387, Peoples R China
2.Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
3.Natl Inst Clean & Low Carbon Energy, Beijing 102209, Peoples R China
4.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
5.Washington State Univ, Sch Chem Engn & Bioengn, Pullman, WA 99164 USA
6.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Yin, Zhen,Chi, Miaofang,Zhu, Qingjun,et al. Supported bimetallic PdAu nanoparticles with superior electrocatalytic activity towards methanol oxidation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2013,1(32):9157-9163.
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