物理化学学报 >> 2005, Vol. 21 >> Issue (07): 804-807.doi: 10.3866/PKU.WHXB20050721

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乙二醇在Pt-WO3/C上的电催化氧化

曲微丽; 邬冰; 孙芳; 高颖; 陆天虹; 刘长鹏; 邢巍   

  1. 哈尔滨师范大学理化学院化学系,哈尔滨 150080; 中国科学院长春应用化学研究所,长春 130022;南京师范大学化学与环境科学学院,南京 210097
  • 收稿日期:2004-11-17 修回日期:2005-01-21 发布日期:2005-07-15
  • 通讯作者: 高颖 E-mail:yinggao99@sohu.com

Electrocatalytic Oxidation of Ethylene Glycol at Pt-WO3/C Electrode

QU Wei-li; WU Bing; SUN Fang; GAO Ying; LU Tian-hong; LIU Chang-peng; XING Wei   

  1. Department of Chemistry, Harbin Normal University, Harbin 150080; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022; College of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097
  • Received:2004-11-17 Revised:2005-01-21 Published:2005-07-15
  • Contact: GAO Ying E-mail:yinggao99@sohu.com

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.

关键词: 乙二醇, CO, 电氧化

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 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-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.

Key words: Ethylene glycol, CO, Electrooxidation