MnMoO4·4H2O nanoplates grown on a Ni foam substrate for excellent electrochemical properties

Abstract

MnMoO₄·4H₂O nanoplates (NPs) grown directly on Ni foam were synthesized by a facile hydrothermal process. As-grown MnMoO₄·4H₂O NPs directly supported on Ni foam as integrated electrodes for electrochemical capacitors demonstrated prominent electrochemical performances with a high specific capacitance of 1.15 F cm⁻² (2300 F g⁻¹) at a current density of 4 mA cm⁻² and a good cycling ability (92% of the initial specific capacitance remained after 3000 cycles). The superior electrochemical performances could be ascribed to the porous structure of interconnected MnMoO₄·4H₂O NPs directly grown on current collectors, which improves electrolyte diffusion efficiency and increases electron transport. These MnMoO₄·4H₂O NPs on Ni foam with remarkable electrochemical properties could be considered as a prospective electrode material for the application of supercapacitors.