Synergetic effect of the hydrothermally synthesized rGO decorated MoS₂ nanocomposite for high-performance supercapacitor electrodes

As a solution for the future energy demands, here we introduce a binder free rGO decorated MoS₂ nanocomposite supercapacitor electrodes and was successfully synthesized by a simple one-pot hydrothermal route. The formation of the composite is proved by X-ray diffractometry (XRD), Fourier transform infrared spectroscopy (FT-IR), and field emission scanning electron microscopy (FE-SEM). Electrodes were fabricated by impregnation of active material directly onto a nickel foam substrate by dip coating method without using any binders. The supercapacitive performance of the developed electrodes was tested using cyclic voltammetry technique in three electrode system. The maximum capacitance of the composite reaches 259 F g^-1 at 10 mV s^-1 in 1 M Na₂SO₄ electrolyte which is double of that of bare MoS₂. Owing to simple synthesis and fabrication of electrodes process, the highly performed rGO decorated MoS₂ nanocomposite is a promising candidate for the future energy storage applications. (author)