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电化学(中英文) ›› 1998, Vol. 4 ›› Issue (1): 73-78. 

• 研究论文 • 上一篇    下一篇

甲醇阳极电氧化催化剂的研究

文纲要,张颖,杨正龙,李长志   

  1. 中科院长春应用化学研究所
  • 收稿日期:1998-02-28 修回日期:1998-02-28 出版日期:1998-02-28 发布日期:1998-02-28

Investigation of Methanol Anode Electrooxidation Catalysts

Wen Gangyao Zhang Ying Yang Zhenglong Li Changzhi*   

  1. (Changchun Inst. of Appl. Chem., Chinese Academy of Sciences, Changchun 130022)
  • Received:1998-02-28 Revised:1998-02-28 Published:1998-02-28 Online:1998-02-28

摘要: 采用化学还原沉积法制备了Pt-WO3/C、Pt-Ru/C和Pt-Ru-WO3/C系列催化剂.通过循环伏安与电流-电位极化研究了甲醇在不同催化剂/Nafion膜电极上的电催化氧化.结果表明,三种催化剂的催化活性顺序为:Pt-Ru-WO3/C>Pt-Ru/C>Pt-WO3/C.同时研究了甲醇浓度和催化剂的配比对阳极性能的影响.

关键词: 甲醇, 电氧化, 催化剂, 直接甲醇燃料电池

Abstract: A series of catalysts, Pt-WO_3/C, Pt/Ru/C and Pt-Ru-WO_3/C were prepared by chemical reduction deposition. Electrocatalytic oxidation of methanol on different catalyst/Nafion membrane electrodes was studies by cyclic voltammetry and currentpotential polarization. The results indicated that the catalytic activity order of different catalysts is as follows: Pt-Ru-WO_3/C>Pt-Ru/C>Pt-WO_3/C. At the same time, influences of methanol concentrations and catalyst proportion on performances of anodes were also studies.

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