▎ 摘　　要

A novel graphene-like heterostructure composed of melamine-assisted liquid-exfoliated graphene (G) and 1T-MoS2 nanosheets is prepared by a facile hydrothermal process. Synergistic effects between the layered 1T-MoS2 nanosheets and graphene flakes contribute to high-efficiency electron/ion transport pathway and structural stability, which are beneficial for the rate performance and long cycle life of the 1T-MoS2/G electrode. As a negative electrode material for lithium-ion batteries, the as-developed 1T-MoS2/G electrode delivers a high reversible capacity of 1482 mAh g(-1) at a current density of 100 mA g(-1) and a reversible capacity of 907 mAh g(-1) at 500 mA g(-1) after 60 cycles. Moreover, the 1T-MoS2/G nanostructures also exhibit an excellent rate capability, and a long cycle life (667 mAh g(-1) at 2000 mA g(-1) after 500 cycles). These results demonstrate potential applications of the 1T-MoS2/G composites for energy storage. The design strategy and mechanism may play a key role in the development of other layered transition metal dichalcogenides (TMDs) as promising heterostructures for high-performance LIBs. (C) 2018 Elsevier Ltd. All rights reserved.