| CO_2在Au_(25)团簇修饰玻碳电极上的电催化还原 |
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| 引用本文： | 李伟,金葆康.CO_2在Au_(25)团簇修饰玻碳电极上的电催化还原[J].安徽大学学报(自然科学版),2015(5):89-95. |
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| 作者姓名： | 李伟 金葆康 |
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| 作者单位： | 安徽大学化学化工学院,安徽合肥,230039 |
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| 基金项目： | 国家自然科学基金资助项目，教育部博士点专项基金资助项目，安徽大学“211计划”资助项目 |
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| 摘 要： | 制备Au25团簇修饰玻碳电极,利用电化学阻抗对其进行表征.通过循环伏安法与红外光谱电化学法,分别研究CO2在玻碳电极与Au25团簇修饰玻碳电极上的电化学还原过程,分析CO2还原过程在两者上的差异.电化学和现场红外差谱结果表明:Au25团簇修饰电极对CO2具有良好的电催化还原活性,降低了CO2电化学还原过电位,探讨了CO2在Au25团簇修饰玻碳电极的电化学还原的反应机制.
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| 关 键 词： | 循环伏安法 红外光谱电化学 CO2 修饰电极 Au25团簇 催化 |
The electrochemical reduction of CO2 on Au25 modified electrode |
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| Abstract: | Au25 modified glassy carbon electrode (GCE) was prepared and characterized by AC impedance .Cyclic voltammetry and IR spectroelectrochemistry were utilized to investigate the electrochemical reaction process of CO2 at GCE and Au25 modified GCE . The experimental results suggested that Au25 modified electrode had effective catalytic activity in the electrochemical reduction of CO2 .Au25 could reduce the overpotential in the reduction of CO2 .Finally ,the mechanism of electrochemical reduction of CO2 is studied at GCE and Au25 modified GCE . |
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| Keywords: | cyclic voltammetry IR spectroelectrochemistry CO2 modified electrode Au25 cluster catalyst |
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