| TiO2-WO3负载硅钨酸盐聚苯胺膜电极的电化学行为及电催化性能研究 |
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| 引用本文： | 柳华春,张海丽,刘艳朋,余新武.TiO2-WO3负载硅钨酸盐聚苯胺膜电极的电化学行为及电催化性能研究[J].分析科学学报,2007,23(3):307-310. |
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| 作者姓名： | 柳华春 张海丽 刘艳朋 余新武 |
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| 作者单位： | 华中师范大学化学学院,武汉,430079;湖北师范学院化学与环境工程系,湖北黄石,435002;湖北师范学院化学与环境工程系,湖北黄石,435002 |
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| 摘 要： | 用循环伏安法制备了金属氧化物(TiO2-WO3)负载硅钨酸盐聚苯胺膜修饰玻碳电极(PAn/SiW12/TiO2-WO3/GC),优化了聚合条件,并对该化学修饰电极的电化学行为,包括溶液pH值的影响和电极的稳定性等进行了研究。研究结果表明,此修饰电极聚合物膜不但保持了该杂多酸的电化学活性和电催化性能,又具有良好的稳定性。在0.5 mol/LH2SO4溶液中,该膜电极中的SiW12的第2个还原峰对BrO3-有很好电催化活性,催化过程符合EC平行催化机理。
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| 关 键 词： | 硅钨酸盐 苯胺 溴酸根 电催化 |
| 文章编号： | 1006-6144（2007）03-0307-04 |
| 修稿时间： | 2006-08-012006-10-23 |
Electrochemical Behaviour and Electrocatalytic Properties of Polyaniline Film Containing TiO2-WO3 Supported Silicotungstic Heteropolyanion |
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| LIU Hua-chun,ZHANG Hai-li,LIU Yan-peng,YU Xin-wu.Electrochemical Behaviour and Electrocatalytic Properties of Polyaniline Film Containing TiO2-WO3 Supported Silicotungstic Heteropolyanion[J].Journal of Analytical Science,2007,23(3):307-310. |
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| Authors: | LIU Hua-chun ZHANG Hai-li LIU Yan-peng YU Xin-wu |
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| Affiliation: | 1. College of Chemistry, Center China Normol University, Wuhan 430079 2. Department of Chemistry and Environmental Engneering , Hubei Normal University, Huangshi, Hubei 435002 |
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| Abstract: | An aniline(An) containing TiO2-WO3 supported Silicotungstic heteropolyanion film modified glassy carbon electrode(PAn/SiW12/TiO2-WO3/GC) has been prepared by cyclic voltametry.Polymerization was optimized,and the electrochemical behaviour of the modified electrode including pH-dependence,stability,etc has been studied.Experimental results show that the modified electrode not only maintains the electrochemical activity and electrocatalytic properties of SiW12,but also exhibites good reproducibility and stability.In 0.5 mol/L H2SO4 solution,the second cathodic peak of SiW12 showed good catalytic effect on the reduction of bromate.The catalytic process shows an EC catalytic mechanism. |
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| Keywords: | Silicotungstate Aniline Bromate Electrocatalysis |
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