Interfacial coupling metallic MoS2 nanosheets with wrinkled Ti3C2TX MXene for reversible and stable sodium storage. (April 2023)

• Record Type: Journal Article
• Authors: Liu, Zhimin; Tao, Song; Han, Jiachen; Gao, Zhaoyang; Xu, Wenbin; Min, Huihua; Shen, Xiaodong; Yang, Hao; Wang, Jin
• Is Part Of: Materials today energy. Volume 33(2023)
• Publication Date: 2023-04
• Subjects: Molybdenum disulfide -- Transition metal carbides -- Heterointerface -- Reversible conversion -- Sodium-ion batteries; Energy development -- Periodicals; Energy industries -- Periodicals; Power resources -- Periodicals; Energy policy -- Periodicals; Energy development; Energy industries; Energy policy; Power resources; Electronic journals; Periodicals; 621.042
• DOI: 10.1016/j.mtener.2023.101256
• Languages: English
• ISSNs: 2468-6069

Abstract

Abstract: Owing to high electronic conductivity and large interlayer spacing, 1T–MoS2 has attracted remarkable attention as one of the most potential anode materials for sodium-ion batteries. However, the electrochemical instability seriously hinders its wide application. The high reversible regeneration of Mo–S bonds to pristine 1T–MoS2 inevitably determines electrochemical reversibility of 1T–MoS2 . Herein, hierarchical 1T–MoS2 /MXene architectures demonstrate impressive Na–storage performance with stable reversibility. The theoretical simulation results reveal that the favorable structure of Na–S bonding at Mo/MXene heterointerfaces weakens Na–S bond and thereby decreases the recombination energies of Mo–S bond upon desodiation, greatly promoting reversible Na–storage. Moreover, the ex operando X-ray diffraction and Raman spectra further demonstrate an efficient reversible conversion reaction in 1T–MoS2 /MXene anode. Therefore, the heterogenous 1T–MoS2 /MXene achieves a considerable performance as a sodium-ion battery anode material. Graphical abstract: Image 1 Highlights: Hierarchical 1T–MoS2 /MXene architectures demonstrate a considerable Na-storage performance. It is the first report to disclose the hetero–interface 1T–MoS2 /MXene coupling on Na–storage reversibility. 1T–MoS2 /MXene heterointerface weakens Na–S bond and decreases recombination energies of Mo–S bond upon desodiation.