Enhanced 1T phase promotes sodium storage performances of MoS2 flower-like spheres with embedded reduced graphene oxides

Metallic 1T phase molybdenum disulfide (1T-MoS 2 ) can improve the electron transport rate and provide abundant active sites, which is beneficial to promote the electrochemical properties of MoS 2 . Herein, enhanced 1T-MoS 2 flower-like spheres have been prepared via a facile hydrothermal method through adding urea and reducing reaction time (6 ​h). In addition, graphene oxide nanosheets are also used to further increase the conductivity and structure stability of composite. The synthesized enhanced 1T phase MoS 2 flower-like spheres with embedded reduced graphene oxides (E-1T-MoS 2 @rGO-6) are applied as anode materials as sodium ion battery, which delivers a high reversible capacity of 450 mAh g −1  ​at 0.1 ​A ​g −1 after 60 cycles, and the electrode still remains 280 mAh g −1 after 100 cycles even at 1 ​A ​g −1 . The boosted sodium ion storage capacity, good rate and cyclic stability performances of E-1T-MoS 2 @rGO-6 electrode may be ascribed to the high content of 1T-MoS 2 and the presence of rGO.