Fabrication of γ-MnS/rGO composite by facile one-pot solvothermal approach for supercapacitor applications

gamma-MnS/reduced graphene oxide (gamma-MnS/rGO) composite was successfully fabricated via a facile one-pot solvothermal route using graphene oxide (GO), thioacetamide (TM, CH3CSNH2) and MnCl2.4H(2)O as reactants. It reveals that TM plays an important role in reducing GO and sulfurizing gamma-MnS. The synthesized composite was characterized via X-ray diffraction and scanning electron microscopy for structural and morphological studies. Electrochemical performance was also investigated through cyclic voltammetry and galvanostatic charge discharge. As for the application of supercapacitors, the gamma-MnS/ rGO composite shows a great value of 802.5 F g(-1) at a current density of 5 A g(-1). Furthermore, the capacitance of gamma-MnS/rGO has no decrease of its initial values after 2000 cycles. The galvanostatic charge discharge curve demonstrates the ideal capacitive behavior of gamma-MnS/rGO composite electrodes. (C) 2015 Elsevier B.V. All rights reserved.