高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (12): 2323.

• 研究论文 • 上一篇    下一篇

不同电极材料和不同酸介质对3-甲基吡啶电氧化的影响

张玉敏,张恒彬,曹学静,徐玉玲,李克昌   

  1. 吉林大学化学学院,长春130021
  • 收稿日期:2004-12-02 出版日期:1905-03-14 发布日期:1905-03-14
  • 通讯作者: 张恒彬(1941年出生),男,教授,博士生导师,从事电化学研究.E-mail:hbz@mail.jlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20373020)和吉林省自然科学基金(批准号:20020643-2)资助.

Effect of Different Electrode Materials and Different Acid Media on Electrooxidation of 3-Picoline

ZHANG Yu-Min, ZHANG Heng-Bin*, CAO Xue-Jing, XU Yu-Ling, LI Ke-Chang   

  1. College of Chemistry, Jilin University, Changchun 130021, China
  • Received:2004-12-02 Online:1905-03-14 Published:1905-03-14
  • Contact: ZHANG Heng-Bin;E-mail:hbz@mail.jlu.edu.cn

摘要:

在以质子交换膜为隔膜的电解池内,通过3-甲基吡啶在PbO2/Ti、SnO2/Ti、石墨和MnO2/Ti电极上的电氧化研究发现,在硫酸溶液中,PbO2电极是催化活性最高的工作电极.通过3-甲基吡啶在硫酸、高氯酸、磷酸和乙酸介质中的电氧化研究发现,对于PbO2电极,硫酸是最适合的介质.利用循环伏安实验和恒电位电解实验,研究了电氧化条件和电催化活性,比较了各种条件下的电流效率和选择性.

关键词: 3-甲基吡啶;烟酸;酸介质;阳极材料;电氧化, 3-甲基吡啶, 烟酸, 酸介质, 阳极材料, 电氧化

Abstract:

In an electrolytic cell with a proton exchange membrane, it was found from the electrooxidation of 3-picoline at PbO2/Ti, SnO2/Ti, graphite and MnO2/Ti electrodes that PbO2/Ti is a electrode material with the highest catalysis activity in aqueous solution of sulfuric acid. It was found from electrooxidation of 3-picoline in sulfuric, perchloric, phosphoric and acetic acid media  that sulfuric acid is a most satisfied medium for PbO2/Ti electrode. The electrooxidation conditions and electrocatalytic activity were studied with cyclic voltammetry and potentiostatic electrolytic experiments, the current efficiency and the selectivity under various conditions were compared.

Key words: 3-Picoline; Nicotinic acid; Acid medium; Anode material; Electrooxidation, 3-Picoline, Nicotinic acid, Acid medium, Anode material, Electrooxidation

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