Design of MoS 2 /NC/MnO 2 hollow microsphere electrode for high performance supercapacitors

The composite hybrid with hollow microspheres structure composed of molybdenum disulfide/N-doped carbon/Manganese dioxide (MoS 2 /NC/MnO 2 ) was synthesized via a facile template-assisted method, which shown excellent electrochemical performances for supercapacitors applications. The hollow MoS 2 microspheres are assembled by layered MoS 2 nanosheets, which provide substantial ion channels and large surface area for electrolyte ion transport. Polyaniline as the precursor of carbon materials is grown on the surface of the hollow MoS 2 microspheres by oxidative polymerization. After carbonization, the composite material is obtained by hydrothermal method. The MoS 2 /NC/MnO 2 hollow microspheres electrode possesses high specific capacitance of 882 F·g −1 at a scan rate of 0.5 A·g −1 and a capacitance retention rate of 85.4% at 1 A·g −1 after 2500 cycles charge–discharge, which keeps better cycle stability compared to MnO 2 composite. The as-prepared MoS 2 /NC/MnO 2 microspheres material has the potential to be a strong competitor in high performance supercapacitor electrode materials and has significant potential for supercapacitor applications.