乙二醇在Pt-WO_3/C上的电催化氧化  

Electrocatalytic Oxidation of Ethylene Glycol at Pt-WO_3/C Electrode

作　　者：曲微丽[1] 邬冰[1] 孙芳[1] 高颖[1] 陆天虹[2] 刘长鹏[2] 邢巍[2] 

机构地区：[1]哈尔滨师范大学理化学院化学系,哈尔滨150080 [2]中国科学院长春应用化学研究所

出　　处：《物理化学学报》2005年第7期804-807,共4页Acta Physico-Chimica Sinica

基　　金：国家科技部"973"基金(G2000026408);"863"基金(2003AA517062);国家自然科学基金(20373068;20433060);黑龙江省教育厅基金(10531082);江苏省科技厅高新技术基金(BG200302);江苏省教育厅高新技术产业化基金(JH02-080);国家"211"工程重点学科建设资助项目~~

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.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 electrocatalytic activity of the Pt-WO3/C electrode for electrooxidation of EG was higher than that of the Pt/C electrode. The higher electrocatalytic activity of the Pt-WO3/C was due to that WO3 could supply the oxygen-containing species 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.

关 键 词：乙二醇 CO 电氧化 

分 类 号：O646.54[理学—物理化学]