Ultrathin platinum film covered high-surface-area nanoporous gold for methanol electro-oxidation

被引：33
作者：
Du, Ying [1 ]
Xu, Jing-Juan [1 ]
Chen, Hong-Yuan [1 ]
机构：
[1] Nanjing Univ, Key Lab Analyt Chem Life Sci, Minist Educ China, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 08期
关键词：
Pt-Au electrocatalyst; Nanoporous gold scaffold; Methanol electro-oxidation; FUEL-CELLS; ELECTROCATALYTIC ACTIVITY; OXIDATION; NANOPARTICLES; CATALYSTS;
D O I：
10.1016/j.elecom.2009.07.004
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
An ultrathin platinum film is fabricated on a nanoporous gold (NPG) scaffold through a catalytic chemical deposition method. The morphology and active surface area of the deposited Pt film, which will greatly influence the electro-catalytic properties of the catalyst, can be controlled by adjusting the deposition condition. Compared with bare NPG and high Pt loaded NPG, the performances of methanol electro-oxidation on the low-Pt-content bimetallic film are greatly improved, both in its catalytic current enhancement and signal stability. The best condition for methanol oxidation can be achieved when the area ratio of deposited Pt and uncovered Au was 3:1. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1717 / 1720
页数：4
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共 15 条
  • [1] Formation of carbon-supported PtM alloys for low temperature fuel cells: a review
    Antolini, E
    [J]. MATERIALS CHEMISTRY AND PHYSICS, 2003, 78 (03) : 563 - 573
  • [2] Catalysts for direct ethanol fuel cells
    Antolini, Ermete
    [J]. JOURNAL OF POWER SOURCES, 2007, 170 (01) : 1 - 12
  • [3] Metallic mesoporous nanocomposites for electrocatalysis
    Ding, Y
    Chen, MW
    Erlebacher, J
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (22) : 6876 - 6877
  • [4] Structure dependent electrooxidation of small organic molecules on Pt-decorated nanoporous gold membrane catalysts
    Ge, Xingbo
    Wang, Rongyue
    Cui, Songzhi
    Tian, Fang
    Xu, Liqiang
    Ding, Yi
    [J]. ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (10) : 1494 - 1497
  • [5] Platinum-decorated nanoporous gold leaf for methanol electrooxidation
    Ge, Xingbo
    Wang, Rongyue
    Liu, Pengpeng
    Ding, Yi
    [J]. CHEMISTRY OF MATERIALS, 2007, 19 (24) : 5827 - 5829
  • [6] Synthesis of flower-like gold nanoparticles and their electrocatalytic activity towards the oxidation of methanol and the reduction of oxygen
    Jena, Bikash Kumar
    Raj, C. Retna
    [J]. LANGMUIR, 2007, 23 (07) : 4064 - 4070
  • [7] Platinum-coated gold nanoporous film surface: Electrodeposition and enhanced electrocatalytic activity for methanol oxidation
    Jia, Jianbo
    Cao, Linyuan
    Wang, Zhenhui
    [J]. LANGMUIR, 2008, 24 (11) : 5932 - 5936
  • [8] A review of anode catalysis in the direct methanol fuel cell
    Liu, HS
    Song, CJ
    Zhang, L
    Zhang, JJ
    Wang, HJ
    Wilkinson, DP
    [J]. JOURNAL OF POWER SOURCES, 2006, 155 (02) : 95 - 110
  • [9] Characterization of carbon-supported AuPt nanoparticles for electrocatalytic methanol oxidation reaction
    Luo, J
    Njoki, PN
    Lin, Y
    Mott, D
    Wang, LY
    Zhong, CJ
    [J]. LANGMUIR, 2006, 22 (06) : 2892 - 2898
  • [10] Designer platinum nanoparticles: Control of shape, composition in alloy, nanostructure and electrocatalytic property
    Peng, Zhenmeng
    Yang, Hong
    [J]. NANO TODAY, 2009, 4 (02) : 143 - 164
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