文献类型：期刊文献

英文题名：Ultralong 2H-MoS2 Nanowires from Topological Mo2S3 Phase Transformation toward Exceptional Sodium-Ion Storage

作者：Wang, Yiyang[1,2,3,4];Fang, Yuqiang[2,4];Chen, Ying[5];Lv, Zhuoran[2,4];Zhao, Chendong[1];Zhang, Shaoning[1,6];Ren, Dayong[1];Wang, Linlin[7];Luan, Weiling[5];Zhao, Wei[1,3];Huang, Fuqiang[2,4]

机构：[1]Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine M, Shanghai 200050, Peoples R China;[2]Shanghai Jiao Tong Univ, Zhangjiang Inst Adv Study, Shanghai 201210, Peoples R China;[3]Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China;[4]Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China;[5]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[6]ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China;[7]Inst Strateg Emerging Mat, Yixing 214203, Peoples R China

年份：2025

卷号：21

期号：20

外文期刊名：SMALL

收录：;EI(收录号：20251518205895);WOS:【SCI-EXPANDED(收录号:WOS:001458374700001)】；

基金：The authors are grateful to the financial support from the Science and Technology Commission of Shanghai Municipality (23DZ1200800), the Postdoctoral Fellowship Program of China Postdoctoral Science Foundation (GZB20230400), the Youth Innovation Promotion Association CAS (2021246), and the National Natural Science Foundation of China (52402287, 52375144, 52205153).

语种：英文

外文关键词：2H-MoS2 nanowire; Mo2S3 nanowire; sodium-ion battery anode; topological phase transformation

摘要：1D transition metal dichalcogenide (TMD) nanowires (NWs) have attracted attention to act as energy storage and information technology materials, but the TMD NWs are unable to directly synthesized rather than hexagonal flakes due to the habit of in-planar isotropic crystal growth. Herein, the topological phase transformation is proposed to synthesize ultralong high-quality 2H-MoS2 NWs from a surface-to-interior sulfurization of isomorphic Mo2S3 NWs. Mo2S3 endows a crystal structure with the [MoS] chains inserted into the 2H-MoS2 crystal structure. The harvested MoS2 NWs are average in length >150 mu m and diameter approximate to 400 nm, and the electrical conductivity of approximate to 150 S m(-1) is much higher than the reported 2H-MoS2 flakes (10(-2) S m(-1)). As a sodium-ion battery (SIB) anode, 2H-MoS2 NWs exhibit a high capacity of 705 mAh g(-1) at 0.2 A g(-1). The capacity retention of 85.6% is achieved after 9500 cycles at 5 A g(-1), superior to any reported TMD-based SIB anodes. Further in-situ structure characterizations reveal favorable reversible redox chemistry for 2H-MoS2 NWs, and excellent cycling stability stems from the homogeneous surface stress release of the NWs during sodiation/desodiation. This work provides an effective strategy for preparing TMD NWs with excellent electrochemical performance.