锗钨酸盐的电化学性能及GeW11Co/P-oPD/GC电极对过氧化氢的电催化还原

doi:10.61558/2993-074X.2863

电化学（中英文） ›› 2011, Vol. 17 ›› Issue (4): 410-415. doi: 10.61558/2993-074X.2863

锗钨酸盐的电化学性能及GeW11Co/P-oPD/GC电极对过氧化氢的电催化还原

朱莉莉，屈建莹*，王珏，冯昊玥

河南大学化学化工学院，环境与分析科学研究所，河南开封 475004

收稿日期:2011-07-18 修回日期:2011-08-04 出版日期:2011-11-28 发布日期:2011-09-29
通讯作者: 屈建莹 E-mail:lilyqujy@yahoo.com.cn

Electrochemical Properties of Tungstogermanate and Electrocatalysis of H2O2 on GeW11Co/P-oPD/GC Electrode

ZHU Li-Li, QU Jian-Ying*, WANG Jue, FENG Hao-Yue

Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China

Received:2011-07-18 Revised:2011-08-04 Published:2011-11-28 Online:2011-09-29
Contact: Qu Jian-Ying E-mail:lilyqujy@yahoo.com.cn

摘要/Abstract

摘要： 本文探索了杂多酸-钴取代的三聚Keggin结构锗钨酸盐([Co(H2O)3(α-GeW11CoO38)3]10-)的电化学性能，实验表明，玻碳(GC)电极上锗钨酸盐循环伏安曲线有两对可逆的氧化还原峰，峰电位差分别为31 mV和35 mV，分别对应于2电子4质子和2电子3质子电极反应过程，且该过程受吸附控制.通过电聚合将GeW11Co修饰于聚邻苯二胺（P-oPD/GC）电极上，制得GeW11Co/P-oPD/GC电极.研究表明，该电极对过氧化氢（H2O2）的还原有良好的电催化作用，其制作简便、性能稳定，响应快速.

关键词: 杂多酸, 聚邻苯二胺, 化学修饰电极, 电催化还原, 过氧化氢

Abstract: The electrochemical properties of Co-substituted trimeric tungstogermanate containing Keggin fragments were studied. Cyclic voltammograms revealed two couples of reversible redox peaks on glassy carbon (GC) electrode in acid solutions. They corresponded to two-electron reductions accompanying by the additions of four protons and three protons, respectively, both were controlled by adsorption. The differences in the peak potentials of 2-electron-4-proton and 2-electron-3-proton reactions were 31 mV and 35 mV, respectively..Furthermore, the tungstogermanate (GeW11Co) modified GC electrode with functionalization by poly(o-phenylenediamine) (P-oPD) was prepared readily by electropolymerization. The GeW11Co/P-oPD/GC electrode could electrocatalyze the reduction of hydrogen peroxide, which showed good stability and quick response.

Key words: polyoxometalate, poly(o-phenylenediamine), chemically modified electrode, electrocatalytic reduction, hydrogen peroxide

中图分类号:

O646

朱莉莉, 屈建莹, 王珏, 冯昊玥. 锗钨酸盐的电化学性能及GeW11Co/P-oPD/GC电极对过氧化氢的电催化还原[J]. 电化学（中英文）, 2011, 17(4): 410-415.

ZHU Li-Li, QU Jian-Ying, WANG Jue, FENG Hao-Yue. Electrochemical Properties of Tungstogermanate and Electrocatalysis of H2O2 on GeW11Co/P-oPD/GC Electrode[J]. Journal of Electrochemistry, 2011, 17(4): 410-415.

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https://electrochem.xmu.edu.cn/CN/Y2011/V17/I4/410

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锗钨酸盐的电化学性能及GeW11Co/P-oPD/GC电极对过氧化氢的电催化还原

Electrochemical Properties of Tungstogermanate and Electrocatalysis of H2O2 on GeW11Co/P-oPD/GC Electrode

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