US EPA

4849850 

Journal Article 

Vertical 1T-MoS2 nanosheets with expanded interlayer spacing edged on a graphene frame for high rate lithium-ion batteries 

Xiang, T; Fang, Q; Xie, H; Wu, C; Wang, C; Zhou, Y; Liu, D; Chen, S; Khalil, A; Tao, S; Liu, Q; Song, L 

2017 

1 

Nanoscale
ISSN: 2040-3364
EISSN: 2040-3372 

9 

21 

6975-6983 

English 

28524923 

10.1039/c7nr02003a 

WOS:000402600500005 

Vertical 1T-MoS2 nanosheets with an expanded interlayer spacing of 9.8 Å were successfully grown on a graphene surface via a one-step solvothermal method. Such unique hybridized structures provided strong electrical and chemical coupling between the vertical nanosheets and graphene layers by means of C-O-Mo bonding. The merits are very beneficial for a high-efficiency electron/ion transport pathway and structural stability. As a proof of concept, the lithium ion battery with the as-obtained hybrid's electrode exhibited excellent rate performance with a 666 mA h g-1 capacity at a high current density of 3500 mA g-1. We can extend this method to produce various metallic 1T-MX2 (M = transition metal; X = chalcogen) vertically edged on a graphene frame as one of the promising hetero-structures for several specific applications in the fields of electronics, optics and catalysis.