Chemical synthesis of 3D copper sulfide with different morphologies for high performance supercapacitors application

摘要: 3D copper sulfide (Cu2S) with different morphologies for high performance supercapacitors were synthesized via a simple, cost effective successive ionic layer adsorption and reaction (SILAR) method. Further, these Cu2S nanostructure demonstrate excellent surface properties like uniform morphology, large area of samples. X-ray diffraction (XRD) photoelectron spectroscopy (XPS) Raman samples confirmed the crystallinity crystal structure Cu2S. The electrochemical studies have been investigated by cyclic voltammetry, charge–discharge impedance techniques. maximum specific capacitance flower-like integrated nanotubes are found 761 470 F g−1, respectively, at scan rate 5 mV s−1. electrodes prepared using simple four-beaker SILAR system ambient conditions, thus providing an easy approach to fabricate high-power high-energy supercapacitors. EIS analysis shows lower ESR value, power performance, as well frequency response sample. Ragone plot better energy densities all nanostructured long-term cycling is examined retention 95%. provided porous more conductive nickel foam utilized properly enhance sulfides charge transport storage.