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.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
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~~
关键词
乙二醇
CO
电氧化
ethylene glycol
CO
electrooxidation
