高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (7): 1028.

• 研究快报 • 上一篇    下一篇

砷钼杂多酸薄膜化学修饰电极研究

陈灵因   

  1. 安徽师范大学测试中心, 芜湖, 241000
  • 收稿日期:1995-01-16 修回日期:1995-04-28 出版日期:1995-07-24 发布日期:1995-07-24
  • 通讯作者: 陈灵因,女,59岁,副教授.
  • 作者简介:陈灵因,女,59岁,副教授.
  • 基金资助:

    安徽省教育委员会自然科学基金

Studies on 1:12 Molybdoarsenate Heteroly Anion Film Chemically Modified Electrode

CHEN Ling-Yin   

  1. Test & Analysis Center, Anhui Normal University, Wuhu, 241000
  • Received:1995-01-16 Revised:1995-04-28 Online:1995-07-24 Published:1995-07-24

摘要: 杂多酸和杂多酸化学修饰电极的电化学研究及应用正在不断地深入发展,杂多酸化学修饰电极不仅可用于中心原子的定量分析,还以其优良的电催化性质,应用于液相色谱的电化学检测,因此日益受到重视,本文首次报道以玻碳为基体的砷钼杂多酸薄膜化学修饰电极(简称AsMo12电极)的制备及其电化学和电催化性质,AsMo12电极具有良好的稳定性和电化学活性,电极寿命长,可应用于砷(V)的伏安法测定和IO3-的电催化检测。

关键词: 砷钼杂多酸, 化学修饰电极, 砷, 电催化, 碘酸根

Abstract: Amonolayer of 1:12 molybdoarsenate acid (AsMo12) was modified on a glassy carbon electrode (GCE) by electrochemical or dip coating method in a solution containing 1. 33×10-5mol/Lmolybdoarsenate, 0.30 mol/L sulfuric acid -20% acetone. Cyclic voltam-metry was used to study the electrochemical behavior of AsMo12and AsMo12film modified electrode. It is confirmed that AsMo12can be strongly adsorbed on the surface of GCE. On the other hand, the autocatalytic reduction of AsMo12and the electrocatalytic reduction of the AsMo12film modified electrode for iodate anion (IO3-) in 0. 30 mol/Lsulfuric acid -20% acetone is described.

Key words: Molybdoarsenate, Chemically modified electrode, Arsenic, Electrocatalysis, Io-date

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