高等学校化学学报

高等学校化学学报 ›› 2012, Vol. 33 ›› Issue (05): 1017.doi: 10.3969/j.issn.0251-0790.2012.05.027

• 物理化学 • 上一篇    下一篇

丙酮对Pd电极上异丙醇电氧化的毒化作用

刘瑶, 曾亚超, 刘冉, 王贵领, 曹殿学   

  1. 哈尔滨工程大学材料科学与化学工程学院, 哈尔滨 150001
  • 收稿日期:2011-10-28 出版日期:2012-05-10 发布日期:2012-05-10
  • 作者简介:曹殿学, 男, 博士, 教授, 博士生导师, 主要从事燃料电池、 锂离子电池、 超级电容器和超级电池等研究. E-mail: caodianxue@hrbeu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20973048)资助.

Poisoning of Acetone to Electrooxidation of 2-Propanol at Pd Electrode

LIU Yao, ZENG Ya-Chao, LIU Ran, WANG Gui-Ling, CAO Dian-Xue   

  1. College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
  • Received:2011-10-28 Online:2012-05-10 Published:2012-05-10

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被引次数

1

摘要： 采用循环伏安法和计时电流法研究了丙酮浓度和反应温度对Pd电极上异丙醇直接电氧化的影响. 研究发现, 丙酮对Pd电极上异丙醇电氧化存在严重的毒化作用, 并提出了其发生竞争吸附的毒化作用机理.

关键词: Pd电极, 异丙醇, 丙酮, 电氧化, 毒化作用

Abstract: The effects of acetone concentration and reaction temperature on the electrooxidation of 2-propanol at Pd electrode were investigated by cyclic voltammetry and chronoamperometry. The results show that acetone significantly poisons the electrocatalytic activity of Pd for 2-propanol oxidation. A competitive adsorption mechanism was proposed to interpret the poisoning effect.

Key words: Palladium electrode, 2-Propanol, Acetone, Electrooxidation, Poisoning

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