高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (12): 2285.

• 研究快报 • 上一篇    下一篇

Pt/CNT纳米催化剂的微波快速合成及其对甲醇电化学氧化的电催化性能

陈卫祥1,2, 韩贵1, LEE Jim Yang2,3,4, 刘昭林4   

  1. 1. 浙江大学化学系, 杭州 310027;
    2. 新加坡国立大学, 新加坡-麻省理工学院联合体, 新加坡117576;
    3. 新加坡国立大学化学与环境工程系, 新加坡 119260;
    4. 新加坡材料研究与工程所, 新加坡 117602
  • 收稿日期:2003-06-27 出版日期:2003-12-24 发布日期:2003-12-24
  • 通讯作者: 陈卫祥(1965年出生),男,博士,教授,从事功能纳米材料合成及其在电化学能源和高性能复合材料中的应用研究.E-mail:weixiangchen@css.zju.edu.cn E-mail:weixiangchen@css.zju.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20003009);浙江省自然科学基金(批准号:200053);MEBCSProgrammeofSingapore-MITAlliance资助

Rapid Synthesis of Pt/Carbon Nanometer Catalyst by Microwave Irradiation and Its Electrocatalytic Activity for Electrooxidation of Methanol

CHEN Wei-Xiang1,2, HAN Gui1, LEE Jim-Yang2,3,4, LIU Zhao-Lin4   

  1. 1. Department of Chemistry, Zhejiang University, Hangzhou 310027, China;
    2. Singapore-MIT Alliance, National University of Singapore, Singapore 117576;
    3. Department of Chemical and Environmental Engineering, National University of Singapore, Singapore 119260;
    4. Institute of Materials Research and Engineering of Singapore, Singapore 117602
  • Received:2003-06-27 Online:2003-12-24 Published:2003-12-24

PDF (PC)

被引次数

116

关键词: 微波, 铂纳米粒子, 碳纳米管, 催化剂, 燃料电池

Abstract: As a rapid uniform and efficient heating method, microwave irradiation has been widely used in chemical reaction and preparing nanomaterials. Here Pt/carbon nanotube(CNT) catalysts with w(Pt)=18.1% and 9.4 % were rapidly synthesized by microwave irradiation heating polyol process and employing the ethylene glycol solution of H2PtCl6as the precursors in the presence of CNT support. TEM imaging showed that microwave-prepared Pt nanoparticles were very uniform in size, with an average size of 3.1 nm, and uniformly dispersed on the CNT surface. Electrochemical experiments demonstrated that microwave-synthesized Pt/CNT catalysts exhibited a higher catalytic activity for electrooxidation of liquid methanol than E-TEK Pt/C. The significant improvement in catalyst performance derives from that microwave-synthesized Pt nanoparticles have a uniform small particle size and uniforml dispersion on the CNT surface.

Key words: Microwave, Pt nanoparticles, Carbon nanotubes, Catalyst, Fuel cell

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