| 基于溶胶-凝胶技术的硅钨杂多酸化学修饰电极的组装及其电化学催化 |
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| 引用本文： | 李丽东,孙长青,刘志红.基于溶胶-凝胶技术的硅钨杂多酸化学修饰电极的组装及其电化学催化[J].吉林大学学报(理学版),2000(2):82-86. |
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| 作者姓名： | 李丽东 孙长青 刘志红 |
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| 作者单位： | 1. 吉林大学化学系,长春,130023
2. 长春医学高等专科学校,长春,130031 |
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| 摘 要： | 将Keggin型硅钨杂多酸SiO
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| 关 键 词： | 溶胶-凝胶技术 硅钨酸 化学修饰电极 电催化 亚硝酸根 氧气 |
| 文章编号： | 0529-0279(2000)02-0082-05 |
| 修稿时间： | 1999-08-26 |
Fabrication of Chemically-modified Electrode Containing 1:12 Silicotungstic Anions by Sol-gel Technique and Its Electrocatalytic Properties |
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| LI Li-dong,SUN Chang-qing,LIU Zhi-hong.Fabrication of Chemically-modified Electrode Containing 1:12 Silicotungstic Anions by Sol-gel Technique and Its Electrocatalytic Properties[J].Journal of Jilin University: Sci Ed,2000(2):82-86. |
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| Authors: | LI Li-dong SUN Chang-qing LIU Zhi-hong |
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| Institution: | LI Li-dong ,SUN Chang-qing ;
(Department of Chemistry, Jilin University, Changchun, 130023);
LIU Zhi-hong ;
(Changchun Higher College of Medical Sciences, Changchun, 130031) |
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| Abstract: | The anions of a Keggin type silicotungstic acid were immobilized on the surface of a cabon paste electrode by the sol gel technique. The electrochemical behavior of the modified electrode was studied in detail. Experimental results show that the modified electrode not only maintains the electrochemical activity and electrocatalytic properties of SiW 12 , but also has good stability and sensibility. In a 0.5 mol/L H 2SO 4 solution, the first and the second cathodic peaks of SiW 12 doped in sol gel film can catalyze the electro reduction of nitrite. The catalytic current was proportional to NO - 2 concentration and it also exhibited good catalytic effect on the reduction of dioxyge. |
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| Keywords: | sol gel technique silicotungstic acid chemically modified electrode electrocatalysis nitrite dioxyge |
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