Molten salt as ultrastrong polar solvent enables the most straightforward pyrolysis towards highly efficient and stable single-atom electrocatalyst

作     者：Nannan Li Wei Liu Chao Zhu Ce Hao Jingya Guo Hongyu Jing Jinwen Hu Cuncun Xin Danyang Wu Yantao Shi Nannan Li;Wei Liu;Chao Zhu;Ce Hao;Jingya Guo;Hongyu Jing;Jinwen Hu;Cuncun Xin;Danyang Wu;Yantao Shi

作者机构：State Key Laboratory of Fine ChemicalsDepartment of ChemistrySchool of Chemical EngineeringDalian University of TechnologyDalian 116024LiaoningChina SEU-FEI Nano-Pico CenterKey Laboratory of MEMS of Ministry of EducationCollaborative Innovation Center for Micro/Nano FabricationDevice and SystemSoutheast University2 No.4 PailouNanjing 210096JiangsuChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2021年第30卷第3期

页      面：519-527页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the National Natural Science Foundation of China(Grant No.51773025) the Natural Science Foundation of Liaoning Province(Materials Joint Foundation,Grant No.20180510027) Dalian science and technology innovation fund(Grant No.019J12GX032) 

主　　题：Ultrastrong polar solvent Molten salts one-pot pyrolysis Carbon-supported single atom catalysts Oxygen reduction reaction 

摘      要：Currently,pyrolysis as the most widely used method still has some key issues not well resolved for synthesis of carbon-supported single-atom catalysts(C-SACs),e.g.,the sintering of metal atoms at high temperature as well as the high cost and complicated preparations of *** this report,molten salts are demonstrated to be marvellous medium for preparation of C-SACs by pyrolysis of small molecular precursors(ionic liquid).The ultrastrong polarity on one hand establishes robust interaction with precursor and enables better carbonization,resulting in largely enhanced *** the other hand,the aggregation of metal atoms is effectively refrained while no nanoparticle or cluster is *** this strategy,a C-SAC with atomically dispersed Fe-N_(4) sites and a high specific area over 2000 m^(2) g^(-1) is obtained,which illustrates high ORR activity in both acid and alkaline ***,this SAC exhibits superior methanol tolerance and stability after acid soaking at 85℃ for 48 *** is believed that the molten-salts-assisted pyrolysis can be developed into a routine strategy as it not only can largely simply the synthesis of C-SACs,but also can be extended to prepare other types of SACs.