Co/Zn-metal organic frameworks derived functional matrix for highly active amorphous Se stabilization and advanced lithium storage

作     者：Hong Yu Jin-Zhao Kang Long-Sheng Huang Jin-Jin Wang Xiao-Mei Wang Xiang-Yuan Zhao Cheng-Feng Du Hong Yu;Jin-Zhao Kang;Long-Sheng Huang;Jin-Jin Wang;Xiao-Mei Wang;Xiang-Yuan Zhao;Cheng-Feng Du

作者机构：State Key Laboratory of Solidification ProcessingCenter of Advanced Lubrication and Seal MaterialsNorthwestern Polytechnical UniversityXi’an710072China Northwestern Polytechnical University Chongqing Technology Innovation CenterChongqing400000China College of Chemistry and Chemical EngineeringHubei UniversityWuhan430062China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2023年第42卷第1期

页      面：76-84页

核心收录：

学科分类：08[工学] 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 (Nos.51901189 and 51802265) Shaanxi Provincial Key R&D Program (No.2021KWZ17) China Postdoctoral Science Foundation Grant (No. 2020M683552) the Natural Science Foundation of Chongqing (No.cstc2020jcyj-msxmX0859) 

主　　题：Metal-organic frameworks(MOFs) Amorphous Se Functional matrix Li-Se batteries 

摘      要：Lithium-selenium batteries,as an advanced rechargeable battery system,have attracted wide ***,its application is hurdled by the ambiguous underlying mechanism such as the unclear active phase and the key role of the host ***,a three-dimensional(3D) functional matrix derived from the Co/Znmetal organic framework is synthesized to unravel the questions *** reveals that the strong interaction and voids in the 3D matrix serve to anchor the amorphous Se with high electrochemical *** obtained 3DC/Se exhibits 544.2 and 273.2 mAh·g^(-1) t current densities of 0.1C and 2.0C,respectively,with a diffusion-controlled *** excessive amount of Se beyond the loading capacity of the matrix leads to the formation of trigonal phase Se,which shows an unsatisfying electrochemical property.