Promoting the Electrochemical Water Oxidation Reaction to H2O2 via Bubbles on the Electrode

Ling, Chen1; Li, Ruhong2; Liang, Aiping1; Bian, Juncao3; Zhao, Yusheng3,4; Li, Chaolin1,5; Wang, Wenhui1

2023-06-01

10.1021/acssuschemeng.3c00630

ACS SUSTAINABLE CHEMISTRY & ENGINEERING   影响因子和分区

2168-0485

["Surfacebubbles on the electrode can significantly improvethe electrosynthesis of hydrogen peroxide by a two-electron wateroxidation reaction.","Surfacebubbles on electrodes generated via gas evolution reactionare generally considered harmful to the desired electrochemical reactionas they reduce the electrochemically active area and increase energyconsumption. However, it is shown herein that surface bubbles on theelectrode can significantly improve the electrosynthesis of hydrogenperoxide (H2O2) by a two-electron water oxidationreaction (2e-WOR) due to the high concentration of OH- accumulated by the corona of the bubbles. Inspired by this understanding,aerophilic PVDF-coated CFP electrodes were designed to prolong theresidence time of the in situ generated surface bubbles to improvetheir 2e-WOR selectivity from 16.3 to 62.5%, and the H2O2 generation rate was as high as 28.4 & mu;mol min(-1) cm(-2). This study subverts long-heldassumptions about the effect of the bubbles on the electrode towardelectrochemical reaction and provides a theoretical guideline fordesigning 2-WOR catalysts."]

surface bubbles corona two-electronwateroxidation reaction electrosynthesis hydrogen peroxide

SCI ; EI

英语

其他

National Natural Science Foundation of China["52170155","52100084"] ; Basic Research Project of Science and Technology Innovation Commission of Shenzhen[JSGG20191129111001820] ; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2018B030322001]

Chemistry ; Science & Technology - Other Topics ; Engineering

Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical

WOS:001016560900001

AMER CHEMICAL SOC

20232914413393

Electrochemical electrodes ; Energy utilization ; Oxidation

Energy Utilization:525.3 ; Chemical Reactions:802.2 ; Inorganic Compounds:804.2

Web of Science

1.Harbin Inst Technol, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China
2.Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China
3.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Guangdong Prov Key Lab Energy Mat Elect Power, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
5.Harbin Inst Technol, Sch Environm, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China

Ling, Chen,Li, Ruhong,Liang, Aiping,et al. Promoting the Electrochemical Water Oxidation Reaction to H2O2 via Bubbles on the Electrode[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2023,11(28):10264-10273.

Ling, Chen.,Li, Ruhong.,Liang, Aiping.,Bian, Juncao.,Zhao, Yusheng.,...&Wang, Wenhui.(2023).Promoting the Electrochemical Water Oxidation Reaction to H2O2 via Bubbles on the Electrode.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,11(28),10264-10273.

Ling, Chen,et al."Promoting the Electrochemical Water Oxidation Reaction to H2O2 via Bubbles on the Electrode".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 11.28(2023):10264-10273.