中华医学超声杂志

应用化学 ›› 1995, Vol. 0 ›› Issue (3): 61-63.

• 研究论文 • 上一篇    下一篇

碳载铂电极的表面结构与性能

陈声培, 孙世刚, 黄泰山   

  1. 厦门大学固体表面物理化学国家重点实验室、化学系、物理化学研究所, 厦门 361005
  • 收稿日期:1994-09-03 修回日期:1994-11-12 出版日期:1995-06-10 发布日期:1995-06-10

Surface Structure and Catalytic Activity of Glassy Carbon Supported Platinum Electrode

Chen Shengpei, Sun Shigang, Huang Taishan   

  1. State Key Laboratory for Physical Chemistry of the Solid Surface, Department of Chemistry, Institute of Physical Chemistry, Xiamen University, Xiamen 361005
  • Received:1994-09-03 Revised:1994-11-12 Published:1995-06-10 Online:1995-06-10

PDF

522

被引次数

11

摘要： 寻找和制备高性能催化剂是燃料电池开发的一个重要课题.在碳或氧化物表面沉积催化物质可显著提高催化剂的利用率,降低成本.可在载体上沉积铂制备实用型催化剂.铂电极表面原子排列结构对其活性具有决定性的影响,同时金属在一定条件下存在单晶多定向,以及多晶单定向的现象,从而有助于微观的层次设计和得到高性能电催化表面.

关键词: 玻碳, 铂黑, 甲醇氧化, 电催化活性

Abstract: The scanning electron microscopy,X-ray diffractometry and electrochemical tech-niques were used to study the surface structure and catalytic activity of highly dispersed plat-inum supported on glassy carbon electrode.The results demonstrated that after high temper-ature treatment the dispersed platinum showed a tendency of monoorientation on the surfaceof glassy carbon, and yieldied large size microcrystals with regular morphology.The high temperature treated Pt/GC was stable and possessed a relatively high catalytic activity to-wards methanol oxidation.

Key words: glassy carbon, platinized platinium, methanol oxidation, electrocatalytic activity

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