文献类型：期刊文献

英文题名：Confining MoS2 nanocrystals in MOF-derived carbon for high performance lithium and potassium storage

作者：Hu, Chen[1];Ma, Kun[1];Hu, Yanjie[1];Chen, Aiping[1];Saha, Petr[2];Jiang, Hao[1];Li, Chunzhong[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[2]Tomas Bata Univ Zlin, Univ Inst, Ctr Polymer Syst, Trida T Bati 5678, Zlin 76001, Czech Republic

年份：2021

卷号：6

期号：1

起止页码：75

外文期刊名：GREEN ENERGY & ENVIRONMENT

收录：;EI(收录号：20212010370243);WOS:【SCI-EXPANDED(收录号:WOS:000652364100009)】；

基金：This work was supported by the National Natural Science Foundation of China (21975074, 91534202 and 91834301), the Basic Research Program of Shanghai (17JC1402300), the Shanghai Scientific and Technological Innovation Project (18JC1410500), the National Program for Support of TopNotch Young Professionals, and the Fundamental Research Funds for the Central Universities (222201718002).

语种：英文

外文关键词：Confined reaction; MoS2; Nanocrystals; Metal-organic framework; Energy storage

摘要：Developing an efficient synthesis protocol to simultaneously control 2D nanomaterials' size and dispersion is the pivot to optimize their electrochemical performance. Herein, we report the synthesis of uniform MoS2 nanocrystals well-anchored into the void space of porous carbon (donated as MoS2 subset of C hybrids) by a simple confined reaction in metal-organic framework (MOF) during carbonization process. The strong confinement effect refrain MoS2 growth and aggregation, generating abundant active centers and edges, which contribute fast lithium/potassium reaction kinetics. In addition to the hybridization with the derived carbon, the MoS2C hybrids exhibit rapid Lithorn transfer rate (similar to 10(-9) cm(2) s(-1)) and greatly improved electronic conductivity. Consequently, the MoS2 subset of C hybrids show ultrafast rate performances and satisfactory cycling stabilities as anode materials for both lithium and potassium ion batteries. This work demonstrates a universal tactic to achieve high dispersive 2D nanomaterials with tailorable particle size. (C) 2020, Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.