Strong synergy between physical and chemical properties:Insight into optimization of atomically dispersed oxygen reduction catalysts  

作　　者：Yifan Zhang Linsheng Liu Yuxuan Li Xueqin Mu Shichun Mu Suli Liu Zhihui Dai 

机构地区：[1]School of Chemistry and Molecular Engineering,Nanjing Tech University,Nanjing 211816,Jiangsu,China [2]State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology Institution,Wuhan 430070,Hubei,China [3]School of Chemistry and Materials Science,Nanjing Normal University,Nanjing 210023,Jiangsu,China

出　　处：《Journal of Energy Chemistry》2024年第4期36-49,共14页能源化学（英文版）

基　　金：supported by the National Natural Science Foundation of China(22234005,21974070);the Natural Science Foundation of Jiangsu Province(BK20222015)。

摘　　要：Atomically dispersed catalysts exhibit significant influence on facilitating the sluggish oxygen reduction reaction(ORR)kinetics with high atom economy,owing to remarkable attributes including nearly 100%atomic utilization and exceptional catalytic functionality.Furthermore,accurately controlling atomic physical properties including spin,charge,orbital,and lattice degrees of atomically dispersed catalysts can realize the optimized chemical properties including maximum atom utilization efficiency,homogenous active centers,and satisfactory catalytic performance,but remains elusive.Here,through physical and chemical insight,we review and systematically summarize the strategies to optimize atomically dispersed ORR catalysts including adjusting the atomic coordination environment,adjacent electronic orbital and site density,and the choice of dual-atom sites.Then the emphasis is on the fundamental understanding of the correlation between the physical property and the catalytic behavior for atomically dispersed catalysts.Finally,an overview of the existing challenges and prospects to illustrate the current obstacles and potential opportunities for the advancement of atomically dispersed catalysts in the realm of electrocatalytic reactions is offered.

关 键 词：Atomically dispersed catalysts Coordination environment Electronic orbitals Inter-site distance effect Oxygen reduction reaction 

分 类 号：TM911.4[电气工程—电力电子与电力传动] O643.36[理学—物理化学]