Heterostructure of 2D MoSe_(2) nanosheets vertically grown on bowllike carbon for high-performance sodium storage

作     者：Nianxiang Shi Guangzeng Liu Baojuan Xi Xuguang An Changhui Sun Shenglin Xiong 

作者机构：School of Chemistry and Chemistry EngineeringQilu Normal UniversityJinan 250200China School of Chemistry and Chemical EngineeringShandong UniversityJinan 250100China School of Mechanical EngineeringChengdu UniversityChengdu 610106China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2024年第17卷第5期

页      面：4023-4030页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(No.U21A2077) the Taishan Scholar Project Foundation of Shandong Province(No.ts20190908) the Natural Science Foundation of Shandong Province(Nos.ZR2021ZD05,ZR2022QB200) 

主　　题：MoSe_(2)nanosheets bowl-like carbon heterostructure sodium ion batteries 

摘      要：Transition metal dichalcogenides are attractive anode materials for sodium ion batteries(SIBs)due to their high theoretical capacity and large interlayer ***,its practical application is hampered by the sluggish kinetics of Na^(+)insertion and structure collapse caused by Na^(+)insertion/***,the heterostructures of MoSe_(2) nanosheets vertically growing on bowl-like carbon(MoSe_(2)@C)are designed and prepared by a template method coupled with selenization treatment to boost storage sodium *** hollow and collapse could provide enough storage space for Na^(+)and alleviate the volume expansion during the charge/discharge ***_(2) nanosheets vertically grown on carbon could expose more active sites for adsorbing Na^(+)to enhance the utilization rate of electrode ***,building heterostructures by combining different phase components could facilitate Na^(+)diffusion and advance reaction *** from these merits,the bowl-like MoSe_(2)@C shows outstanding reversible capacity(356.8 mAh·g^(-1) after 1500 cycles at 1 A·g^(-1))and remarkable rate performance(249.9 mAh·g^(-1)10 A·g^(-1)).