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化学学报
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化学学报 ›› 2004, Vol. 62 ›› Issue (1): 42-46. 上一篇    下一篇

研究论文

微波合成碳负载纳米铂催化剂及其对甲醇氧化的电催化性能

陈卫祥1,2, LEE Jim-Yang2,3,4, 刘昭林3   

  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, 117576
  • 投稿日期:2003-04-21 修回日期:2003-09-07 发布日期:2014-01-26
  • 通讯作者: 陈卫祥 E-mail::E-mail:weixiangchen@css.zju.edu.cn
  • 基金资助:
    国家自然科学基金(No.20003009),浙江省自然科学基金(No.200053),MEBCSProgrammeofSingapore-MITAlliance和浙江省留学回国人员科研启动基金资助项目.

Carbon Supported Pt Nanoparticles Prepared by Microwave Heating and Their Electrocatalytic Activities for Methanol Oxidation

CHEN Wei-Xiang1,2, LEE Jim-Yang2,3,4, LIU Zhao-Lin3   

  1. 1. Department of Chemistry, Zhejiang University, Hangzhou 310027, China;
    2. Singapore-MIT Alliance, National University of Singapore, 4 Engineering Drive 3, Singapore 117576;
    3. Department of Chemical and Environmental Engineering, National University of Singapore, Singapore 119260;
    4. Institute of Materials Research and Engineering, Research Link, Singapore 117576
  • Received:2003-04-21 Revised:2003-09-07 Published:2014-01-26

PDF

1215

被引次数

182

利用微波辐射快速加热含有XC-72碳的H2PtCl6的乙二醇混合液合成了碳负载的纳米铂,铂负载的质量分数在10%～20%.实验结果表明纳米铂粒子具有均匀的尺寸和形状,其平均粒径在3.6 nm,并均匀地分散在纳米碳的表面.循环伏安和恒电位极化表明微波合成的Pt/C比以KBH4作为还原剂制备Pt/C和商业得到E-TEK Pt/C催化剂对甲醇的电化学氧化具有更高的催化活性.

关键词: 微波, Pt/C催化剂, 甲醇电化学氧化

Carbon supported platinum nanoparticles were prepared by rapid microwave (MW) heating of ethylene glycol solutions of H2PtCl6 in the presence of XC-72 carbon. The Pt loading was varied in the range of w=10%～20%. It was found that Pt nanoparticles have uniform shape and size with an average diameter of 3.6 nm, which could exist in high dispersion on the XC-72 carbon surface. Electrochemical measurements showed that the microwave-prepared Pt/C catalyst exhibited higher electrocatalytic activity in methanol oxidation than Pt/C catalyst prepared by using KBH 4 as the reducing agent or commercial E-TEK Pt/C catalyst.

Key words: microwave, Pt/C catalyst, electrochemical methanol oxidation