Jiao-jiao Li, Jie Wei, Jun Cai, Yan-xia Chen. pH Effect on Oxidation of Hydrogen Peroxide on Au(111) Electrode in Alkaline Solutions[J]. Chinese Journal of Chemical Physics , 2018, 31(6): 779-783. doi: 10.1063/1674-0068/31/cjcp1804064
Citation: Jiao-jiao Li, Jie Wei, Jun Cai, Yan-xia Chen. pH Effect on Oxidation of Hydrogen Peroxide on Au(111) Electrode in Alkaline Solutions[J]. Chinese Journal of Chemical Physics , 2018, 31(6): 779-783. doi: 10.1063/1674-0068/31/cjcp1804064

pH Effect on Oxidation of Hydrogen Peroxide on Au(111) Electrode in Alkaline Solutions

doi: 10.1063/1674-0068/31/cjcp1804064
Funds:  This work was supported by the National Natural Science Foundation of China (No.21473175 and No.21273215) and the National Key Basic Research Program of China from the Ministry of Science and Technology of China (No.2015CB932301).
  • Received Date: 2018-04-11
  • The hydrogen peroxide oxidation reaction (HPOOR) on Au(111) electrode in alkaline solutions with pH values ranging from 10 to 13 was examined systematically. HPOOR activityincreased and the slope of the i-E curve decreased with increasing pH. HO2- is suggested to be the main reactive intermediate for HPOOR in alkaline media. The fast kinetics for HPOOR in alkaline solution is facilitated by the electrostatic interaction between the positively charged electrode and the reactive anions (i.e., HO2- and HO-), which increases the concentration of these reactants and the thermodynamic driving force for HO2- oxidation at the reaction plane.
  • 加载中
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article Metrics

Article views(662) PDF downloads(387) Cited by()

Proportional views
Related

pH Effect on Oxidation of Hydrogen Peroxide on Au(111) Electrode in Alkaline Solutions

doi: 10.1063/1674-0068/31/cjcp1804064
Funds:  This work was supported by the National Natural Science Foundation of China (No.21473175 and No.21273215) and the National Key Basic Research Program of China from the Ministry of Science and Technology of China (No.2015CB932301).

Abstract: The hydrogen peroxide oxidation reaction (HPOOR) on Au(111) electrode in alkaline solutions with pH values ranging from 10 to 13 was examined systematically. HPOOR activityincreased and the slope of the i-E curve decreased with increasing pH. HO2- is suggested to be the main reactive intermediate for HPOOR in alkaline media. The fast kinetics for HPOOR in alkaline solution is facilitated by the electrostatic interaction between the positively charged electrode and the reactive anions (i.e., HO2- and HO-), which increases the concentration of these reactants and the thermodynamic driving force for HO2- oxidation at the reaction plane.

Jiao-jiao Li, Jie Wei, Jun Cai, Yan-xia Chen. pH Effect on Oxidation of Hydrogen Peroxide on Au(111) Electrode in Alkaline Solutions[J]. Chinese Journal of Chemical Physics , 2018, 31(6): 779-783. doi: 10.1063/1674-0068/31/cjcp1804064
Citation: Jiao-jiao Li, Jie Wei, Jun Cai, Yan-xia Chen. pH Effect on Oxidation of Hydrogen Peroxide on Au(111) Electrode in Alkaline Solutions[J]. Chinese Journal of Chemical Physics , 2018, 31(6): 779-783. doi: 10.1063/1674-0068/31/cjcp1804064

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return