影像科学与光化学 ›› 2002, Vol. 20 ›› Issue (2): 111-117.DOI: 10.7517/j.issn.1674-0475.2002.02.111

• 研究论文 • 上一篇    下一篇

银离子交换的沸石修饰电极的循环伏安新特性

李永军, 刘春艳   

  1. 中国科学院, 理化技术研究所, 北京, 100101
  • 收稿日期:2001-06-22 出版日期:2002-03-23 发布日期:2002-03-23
  • 通讯作者: 刘春艳.
  • 基金资助:
    国家自然科学基金资助项目(29973049)

NEW OBSERVATION OF CYCLIC VOLTAMMETRIC BEHAVIOR OF Ag+-ZEOLITE MODIFIED ELECTRODE

LI Yong-jun, LIU Chun-yan   

  1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, P.R.China
  • Received:2001-06-22 Online:2002-03-23 Published:2002-03-23

摘要: 银离子交换沸石Y修饰电极(Ag+-沸石Y)的循环伏安(CV)行为, 不同于溶液中的银离子在固体银电极表面上的CV行为. Ag+-沸石电极中银离子还原电位明显受沸石体内银簇影响. 依据Ag+-沸石修饰电极在含有能够与银离子形成难溶盐的电解质中的CV行为, 本文发现了沸石对溶液中阴离子具有尺寸选择效应, 并解释了银离子交换沸石修饰电极的循环伏安反应特性.

关键词: 沸石修饰电极, 银纳米粒子, 循环伏安

Abstract: The cyclic voltammegrams(CV)of silver ions exchanged zeolite modified electrode(Ag+-zeolite)differed from the behavior of silver ions from an aqueous solution on solid sliver electrode.The formation of silver clusters in the pores of zeolite had a significant effect on the CV behavior of electrodes.In light of CV characteristics of Ag+-zeolite electrodes in the electrolyte solution containing anions forming insoluble salt with Ag+-,a selectivity of Ag+-zeolite for anions was proposed to explain CV characteristics of Ag+-zeolite Y.

Key words: zeolite modified electrodes, silver nanoparticle, cyclic voltammetry

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