MoS₂-reduced graphene oxide composites via microwave assisted synthesis for sodium ion battery anode with improved capacity and cycling performance

MoS₂-reduced graphene oxide (RGO) composites were synthesized via a facile microwave assisted reduction of graphene oxide in MoS₂ precursor solution and subsequent annealing in N₂/H₂ atmosphere at 800 °C for 2 h. Their morphology, structure and electrochemical performance were characterized by field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectroscopy, N₂ adsorption-desorption isotherm, cyclic voltammetry and electrochemical impedance spectroscopy. The MoS₂-RGO composites with different RGO loadings were applied as anode materials of sodium ion batteries (SIBs) and they exhibit a maximum reversible specific capacity of about 305 mAh g^-1 at a current density of 100 mA g^-1 after 50 cycles and excellent rate performance. The results demonstrate that MoS₂-RGO could be a potential electrode material for rechargeable SIBs.