Facile hydrothermal synthesis of SnCoS4/graphene composites with excellent electrochemical performance for reversible lithium ion storage. Issue 34 (9th August 2016)

• Record Type: Journal Article
• Authors: Ye, Jianbo; Chen, Tao; Chen, Qiannan; Chen, Weixiang; Yu, Zheting; Xu, Shurui
• Is Part Of: Journal of materials chemistry. Volume 4:Issue 34(2016)
• Page Start: 13194
• Page End: 13202
• Publication Date: 2016-08-09
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c6ta04196e
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : An SnCoS4 /graphene composite with uniformly distributed SnCoS4 hybrid nanocrystals was prepared by a one-pot hydrothermal route and exhibits excellent electrochemical performance for reversible lithium storage. Abstract : An SnCoS4 /graphene composite is synthesized via a one-step hydrothermal route. Characterizations reveal that such composite consists of SnCoS4 hybrid nanocrystals with small and uniform sizes, which are well dispersed on graphene. The electrochemical lithium storage measurements demonstrate that the SnCoS4 /graphene composite exhibits a high reversible capacity of 1396 mA h g −1 at 100 mA g −1 and enhanced rate capability of 1145 mA h g −1 at 1000 mA g −1 . In particular, a reversible capacity of 940 mA h g −1 can be retained after 2000 cycles at a high current density of 2000 mA g −1, indicating its excellent cyclic stability. The SnCoS4 /graphene composite prepared in this work is promising as the host electrode material for high-performance lithium ion batteries.