Facile grafting strategy synthesis of single-atom electrocatalyst with enhanced ORR performance

作     者：Rui Ding Yide Liu Zhiyan Rui Jia Li Jianguo Liu Zhigang Zou Rui Ding;Yide Liu;Zhiyan Rui;Jia Li;Jianguo Liu;Zhigang Zou

作者机构：Jiangsu Key Laboratory for Nano TechnologyNational Laboratory of Solid State MicrostructuresCollege of Engineering and Applied Sciencesand Collaborative Innovation Center of Advanced MicrostructuresNanjing University22 Hankou RoadNanjing210093China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2020年第13卷第6期

页      面：1519-1526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：This work was partially supported by National Key R&D Plan of China(No.2016YFB0101308) the National Natural Science Foundation of China(Nos.21802069,21676135,and U1508202) China Postdoctoral Science Foundation(No.2018M642213) “333”project of Jiangsu Province(No.BRA2018007) 

主　　题：esterification grafting single-atom catalysts oxygen reduction reaction fuel cell 

摘      要：Single-atom catalysts(SACs)have become one of the most considered research directions today,owing to their maximum atom utilization and simple structures,to investigate structure-activity *** the field of non-precious-metal electrocatalysts,atomically dispersed Fe-N4 active sites have been proven to possess the best oxygen reduction *** the majority of preparation methods remains complex and costly with unsatisfying ***,we have designed a surface-grafting strategy to directly synthesize an atomically dispersed Fe-NVC electrocatalyst applied to the oxygen reduction reaction(ORR).Through an esterification process in organic solution,metal-containing precursors were anchored on the surface of carbon *** covalent bonding effect could suppress the formation of aggregated particles during heat *** was further introduced as both a cost-effective nitrogen resource and blocking agent retarding the migration of metal *** optimized catalyst has proven to have abundant atomically dispersed Fe-N4 active sites with enhanced ORR catalytic performance in acid *** method has provided new feasible ideas for the synthesis of SACs.