Rose-like Ni3S4 as battery-type electrode for hybrid supercapacitor with excellent charge storage performance

Rose-like Ni3S4 microflowers are successfully synthesized by a novel two-step hydrothermal technique. X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) characterization are used to identify the spinel structure and rose-like morphology of the synthesized Ni3S4. The cyclic voltammetry and galvanostatic charge–discharge tests demonstrate improved electrochemical performance. The Ni3S4...