中华医学超声杂志

应用化学 ›› 1988, Vol. 0 ›› Issue (5): 21-24.

• 研究论文 • 上一篇    下一篇

新颖电化学气敏电极的研究

吴志刚, 周仲柏, 查全性   

  1. 武汉大学化学系电化学研究室
  • 收稿日期:1987-07-27 修回日期:1987-12-21 出版日期:1988-10-10 发布日期:1988-10-10
  • 基金资助:
    国家自然科学基金

A NOVEL ELECTROCHEMICAL GAS-SENSITIVE ELECTRODE

Wu Zhigang, Zhou Zhongbai, Zha Quanxing   

  1. Department of Chemistry, Wukan University
  • Received:1987-07-27 Revised:1987-12-21 Published:1988-10-10 Online:1988-10-10

PDF

433

被引次数

6

摘要： 根据薄层电化学原理,首次提出并成功地研制了一类新颖的气体敏感电极——“气体薄层电报”;通过特殊测量系统的设计,借助简便的采样方式获得了快响应、高灵敏度和低温度系数的峰电流信号;进而比较系统地研究了这类电极的工作原理,基本上弄清了气体薄层电极的反应模式.

关键词: 气敏电极, 防水气体扩散电极, 气体薄层电极, 整体电解

Abstract: A novel type of gassensitive electrode,a gas thin-layer electrode(GTLE),has been constructed by using hydrophobic gas diffusing electrode technique.Distinctive peaks appeared on linear sweep voltammetry curves as the result of exhaustive electrolysis of reactants within GTLE.The charge(Qp)correlated to the current peak was directly proportional to the amount of the reactant component in the pores of GTLE,thus its concentration in the gas sample can be detected. The measuring system is simple in construction,capable of fast sampling(<5S),with lower temperature coefficient(-0.1-0.3%/℃),high sensitivity and good stability.

Key words: Gassensitive electrode, Hydrophobic gas diffusing electrode, Gas thin-layer eletrode, Bulk electrolysis

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