Ultrafine Co nanoparticles confined in nitrogen-doped carbon toward two-electron oxygen reduction reaction for H_(2)O_(2) electrosynthesis in acidic media

作     者：Xiaoqing Cui Lijie Zhong Xu Zhao Jingxin Xie Dequan He Xin Yang Kanglong Lin Huan Wang Li Niu Xiaoqing Cui;Lijie Zhong;Xu Zhao;Jingxin Xie;Dequan He;Xin Yang;Kanglong Lin;Huan Wang;Li Niu

作者机构：Guangdong Engineering Technology Research Center for Sensing Materials&DevicesGuangzhou Key Laboratory of Sensing Materials&DevicesCenter for Advanced Analytical ScienceSchool of Chemistry and Chemical EngineeringSchool of Civil EngineeringGuangzhou UniversityGuangzhou 510006China Key Laboratory of Drinking Water Science and TechnologyResearch Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报(英文版))

年 卷 期：2023年第34卷第11期

页      面：263-268页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：financial support from the Natural Science Foundation of China(Nos.21805052 and 2278092) Science and Technology Research Project of Guangzhou(Nos.202102020787 and 202201000002) Department of Science&Technology of Guangdong Province(ID:2022A156),Key Discipline of Materials Science and Engineering,Bureau of Education of Guangzhou(No.20225546) the Innovation&Entrepreneurship for the College Students of Guangzhou University(No.XJ202111078175) 

主　　题：Oxygen reduction reaction H_(2)O_(2)production Confined Co nanoparticles Electrocatalysis Acidic media 

摘      要：Electrocatalytic production of hydrogen peroxide(H_(2)O_(2))by two-electron oxygen reduction reaction(2e^(-)ORR)under acidic condition has been considered to have great application *** nanoparticles(CoNPs)coupled with N-doped carbon are a class of potential *** effective strategies to further enhance their performances are to improve the active sites and ***,the material containing ultrafine CoNPs confined in a nitrogen-doped carbon matrix(NC@CoNPs)was synthesized by pyrolyzing corresponding precursors,which was obtained through regulating the topological structure of ZIF-67/ZIF-8 with dopamine(DA).The DA self-polymerization process induced the formation of CoNPs with smaller sizes and formed polydopamine film decreased the detachment of CoNPs from the *** density of Co-N_(x) active sites and defective sites could be identified on NC@CoNPs,leading to high activity and H_(2)O_(2) selectivity,with an onset potential of 0.57 V(***)and∼90%selectivity in a wide potential *** on-site electrochemical removal of organic pollutant was achieved rapidly through an electro-Fenton process,demonstrating its great promise for on-site water treatment application.