The Reduction of Oxygen to Hydrogen Peroxide in an Acidic Trickle Bed Cell Using Graphite Chip Cathode

Authors

Zhaoe Lu, Department of Chemistry, East China University of Science & Technology, Shanghai 200237
Guanyong Zhang, Department of Chemistry, East China University of Science & Technology, Shanghai 200237
Tiangeng Zhong, Department of Chemistry, East China University of Science & Technology, Shanghai 200237
Guonu Fang, Department of Chemistry, East China University of Science & Technology, Shanghai 200237

Corresponding Author

Zhaoe Lu

Abstract

The authors investigated the electrochemical reduction of oxygen to hydrogen peroxide in 0.05 mol/L H₂SO₄ solution by the trickle bed electrode using graphite chip. The bed dimension was 14×5×0.6 cm. The current efficiency and the concentration of H₂O₂ in the catholyte were determined at various current strengths and various rates of adding the electrolyte. The proper current was 0.15 A. i.e. the current density was 2.1 mA/cm² vertical cross section area of the bed. The concentration of H₂O₂ reached 7×10^-3 mol/L with the current efficiency of 0.2. If the concentration of H₂O₂ reduced to 4×10^-3 mol/L, the current efficiency might increase to 0.4.

Keywords

Hydrogen peroxide, Electroreduction, Oxygen electrode, Trickle bed reactors

DOI Link

https://doi.org/10.61558/2993-074X.3078

Publication Date

1996-05-28

Online Available Date

1996-05-28

Revised Date

1995-12-11

Received Date

1995-09-12

Recommended Citation

Zhaoe Lu, Guanyong Zhang, Tiangeng Zhong, Guonu Fang. The Reduction of Oxygen to Hydrogen Peroxide in an Acidic Trickle Bed Cell Using Graphite Chip Cathode[J]. Journal of Electrochemistry, 1996 , 2(2): 219-222.
DOI: 10.61558/2993-074X.3078
Available at: https://jelectrochem.xmu.edu.cn/journal/vol2/iss2/18