Single atomic cobalt electrocatalyst for efficient oxygen reduction reaction

作     者：Peng Rao Daoxiong Wu Tian-Jiao Wang Jing Li Peilin Deng Qi Chen Yijun Shen Yu Chen Xinlong Tian Peng Rao;Daoxiong Wu;Tian-Jiao Wang;Jing Li;Peilin Deng;Qi Chen;Yijun Shen;Yu Chen;Xinlong Tian

作者机构：State Key Laboratory of Marine Resource Utilization in South China SeaHainan Provincial Key Lab of Fine ChemistrySchool of Chemical Engineering and TechnologyHainan UniversityHaikou570228China School of Materials Science and EngineeringShaanxi Normal UniversityXi'an710062China 

出 版 物：《eScience》 (电化学与能源科学（英文）)

年 卷 期：2022年第2卷第4期

页      面：399-404页

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] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：This work was supported by the Hainan Provincial Natural Science Foundation of China(211RC1018) the National Natural Science Foundation of China(22109034,22109035,52164028,62105083) Hainan Province Science and Technology Special Fund(ZDYF2021GXJS207,ZDYF2020037,ZDYF2020207) Natural Science Foundation of Shaanxi Province(2020JZ-23) the Start-up Research Foundation of Hainan University((KYQD(ZR)-20008,20082,20083,20084,21065,21124,21125).Appendix A.Supplementary data 

主　　题：Plasma-bombing Zinc-air batteries Durability Theoretical calculations Single-atom catalysts 

摘      要：Robust oxygen reduction reaction(ORR)catalysts are essential for energy storage and conversion devices,but their development remains ***,we design a single-atom catalyst featuring isolated Co anchored on nitrogen-doped carbon(Co-SAC/NC)via a highly efficient“plasma-bombing*** a high loading(up to 2.5​wt%),the well-dispersed single Co atoms in Co-SAC/NC give it robust ORR performance in an alkaline *** also demonstrates excellent battery performance when implemented as the air-cathode catalyst in a zinc-air battery(ZAB).Theoretical calculations reveal that the Co-N_(4)moiety experiences an“extraction/recoverystructural evolution during the ORR process,and the reaction s rate-determining step is the formation of OOH∗(reaction intermediate).This work provides a new strategy for designing robust ORR catalysts for high-performance ZABs and other energy-conversion devices.