银离子交换的沸石修饰电极的循环伏安新特性 |
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引用本文: | 李永军,刘春艳.银离子交换的沸石修饰电极的循环伏安新特性[J].影像科学与光化学,2002,20(2). |
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作者姓名: | 李永军 刘春艳 |
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作者单位: | 中国科学院,理化技术研究所,北京,100101 |
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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
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关 键 词: | 沸石修饰电极 银纳米粒子 循环伏安 |
NEW OBSERVATION OF CYCLIC VOLTAMMETRIC BEHAVIOR OF Ag+-ZEOLITE MODIFIED ELECTRODE |
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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. |
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Keywords: | zeolite modified electrodes silver nanoparticle cyclic voltammetry |
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