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首页> 外文会议>Ethanol oxidation >Electrocatalytic Activity of Graphene-supported Pt-Cu Catalysts Prepared by an Impregnation Method for Methanol and Ethanol Oxidations
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Electrocatalytic Activity of Graphene-supported Pt-Cu Catalysts Prepared by an Impregnation Method for Methanol and Ethanol Oxidations

机译：浸渍法制备的石墨烯负载的Pt-Cu催化剂对甲醇和乙醇的电催化活性

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摘要

In this study, platinum (Pt) and Pt-copper (Cu) nanoparticles were synthesized on graphene sheets by an impregnation method, and their electrocatalytic activity for methanol and ethanol oxidations was investigated by cyclic voltammetry and electrochemical impedance spectroscopy. Experimental results demonstrate that, in comparison to graphene-supported Pt, graphene-supported Pt-Cu catalyst possesses enhanced efficiency for both methanol and ethanol electro-oxidations, which is reflected by a higher forward oxidation peak current density and a lower transfer resistance. This study indicates that Pt-Cu catalyst could be desirable catalyst candidates for both direct methanol and ethanol fuel cells.
机译：在这项研究中，通过浸渍法在石墨烯片上合成了铂（Pt）和铂（Pt）铜（Cu）纳米颗粒，并通过循环伏安法和电化学阻抗谱研究了它们对甲醇和乙醇氧化的电催化活性。实验结果表明，与石墨烯负载的Pt相比，石墨烯负载的Pt-Cu催化剂对甲醇和乙醇的电氧化效率更高，这可以通过较高的正向氧化峰电流密度和较低的转移电阻来体现。这项研究表明，Pt-Cu催化剂可能是直接甲醇和乙醇燃料电池的理想候选催化剂。

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  • 来源
    《Ethanol oxidation》|2013年|31-37|共7页
  • 会议地点 Toronto(CA)
  • 作者

    Zhexin Lv; Hongzhou Dong; Jincheng Bai; Lifeng Dong;

  • 作者单位

    College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China;

    College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China;

    College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China,Department of Physics, Astronomy, and Materials Science, Missouri State University, Springfield, Missouri, 65897, USA;

    College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China,Department of Physics, Astronomy, and Materials Science, Missouri State University, Springfield, Missouri, 65897, USA;

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  • 正文语种 eng
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