首页|Phosphorous and selenium tuning Co-based non-precious catalysts for electrosynthesis of H2O2 in acidic media

Phosphorous and selenium tuning Co-based non-precious catalysts for electrosynthesis of H2O2 in acidic media

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Electrosynthesis of hydrogen peroxide(H2O2)is an on-site method that enables independent distribution applications in many fields due to its small-scale and sustainable features.The crucial point remains de-veloping highly active,selective and cost-effective electrocatalysts.The electrosynthesis of H2O2 in acidic media is more practical owing to its stability and no need for further purification.We herein report a phosphorus and selenium tuning Co-based non-precious catalyst(CoPSe)toward two-electron oxygen re-duction reaction(2e-ORR)to produce H2O2 in acidic media.The starting point of using both P and Se is finding a balance between strong ORR activity of CoSe and weak activity of CoP.The results demonstrated that the CoPSe catalyst exhibited the optimized 2e-ORR activity compared with CoP and CoSe.It dis-closed an onset potential of 0.68 V and the H2O2 selectivity 76％-85％in a wide potential range(0-0.5 V).Notably,the CoPSe catalyst overcomes a significant challenge of a narrow-range selectivity for transition-metal based 2e ORR catalysts.Finally,combining with electro-Fenton reaction,an on-site system was constructed for efficient degradation of organic pollutants.This work provides a promising non-precious Co-based electrocatalyst for the electrosynthesis of H2O2 in acidic media.

Oxygen reduction reactionElectrochemical H2O2 productionElectrocatalysisNon-precious electrocatalystAcidic media

Jingxin Xie、Lijie Zhong、Xin Yang、Dequan He、Kanglong Lin、Xiaoxia Chen、Huan Wang、Shiyu Gan、Li Niu

展开 >

Guangdong Engineering Technology Research Center for Photoelectric Sensing Materials & Devices,Guangzhou Key Laboratory of Sensing Materials &Devices,Center for Advanced Analytical Science,School of Chemistry and Chemical Engineering,Guangzhou University,Guangzhou 510006,China

Department of Chemistry and Environment Science,Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology,Minnan Normal University,Zhangzhou 363000,China

国家自然科学基金国家自然科学基金国家自然科学基金Science and Technology Research Project of GuangzhouScience and Technology Research Project of GuangzhouDepartment of Science& Technology of Guangdong ProvinceKey Discipline of Materials Science and Engineering,Bureau of Education of GuangzhouInnovation & Entrepreneurship for the College Students of Guangzhou University

218050522197403122780922021020207872022010000022022A15620225546XJ202111078175

2024

10.1016/j.cclet.2023.108472

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(1)
  • 53