High-content 1T phase MoS2 nanosheets coupled on graphene oxide for lithium-ion batteries

Metallic phase molybdenum disulfide (1 T MoS2) has been extensively investigated as a promising energy storage material due to its various fascinating physical properties and potential for excellent performance. On this basis, 1 T MoS2 nanosheets were grown on the accordion-like graphene oxide (GO) via a facile hydrothermal method for use as an anode of lithium-ion batteries. The content of 1 T phase MoS2 was regulated by varying the amount of urea used during synthesis. When 1 g of urea was added to modulate the MoS2/GO (1 T MoS2/GO (1 g)), the metallic content of the MoS2 reached a remarkable level of 81.12%. Benefiting from the synergistic effect of the two materials, the 1 T MoS2/GO (1 g) electrode has a first specific charging/discharging capacity of 1612 mA h g−1 at a current density of 0.1 A g−1 and maintained a specific capacity of 774 mA h g−1 after cycling for 60 cycles at high current density (1 A g−1). These results highlight enhanced electrochemical performance and cycling stability achieved with the utilization of this novel composite electrode.