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乙二醇在Pt-WO3/C上的电催化氧化
Electrocatalytic Oxidation of Ethylene Glycol at Pt-WO3/C Electrode
【摘要】 用循环伏安(CV)和线性扫描(LSV)法研究了乙二醇(EG)在碳载Pt-WO3(Pt-WO3/C)和碳载Pt(Pt/C)电极上的电化学氧化行为.发现Pt-WO3/C电极对EG氧化的电催化活性比Pt/C电极高.这是由于WO3能提供EG在Pt上氧化所需的含氧物种,而且WO3能降低EG氧化的中间产物CO在Pt上的吸附强度.
【Abstract】 Electrooxidation behavior of ethylene glycol(EG) at the Pt-WO3/C and Pt/C electrodes was investigated using cyclic voltammogram(CV) and linear sweeping voltammogram(LSV) techniques. It was found that the elec-trocatalytic activity of the Pt-WO3/C electrode for electrooxidation of EG was higher than that of the Pt/C elec-trode. The higher electrocatalytic activity of the Pt-WO3/C was due to that WO3 could supply the oxygen-containingspecies necessary for the electrooxidation of EG, and WO3 could reduce the adsorption intensity of CO at Pt, which was an intermediate of the electrooxidation of EG.
- 【文献出处】 物理化学学报 ,Acta Physico-chimica Sinica , 编辑部邮箱 ,2005年07期
- 【分类号】O646.54
- 【被引频次】15
- 【下载频次】187