Selectively designed hierarchical copper-cobalt oxysulfide nanoarchitectures for high-rate hybrid supercapacitors

Abstract

The invention discloses a method of fabricating a copper-cobalt (Cu—Co) oxysulfide nanoarchitecture, the method comprising dissolving cobalt nitrate hexahydrate and copper nitrate in de-ionized (DI) water forming a growth solution, mixing disodium thiosulfate and urea to the formed growth solution, immersing a pre-cleaned Ni-foam substrate in the growth solution forming a total solution and transferring the total solution to a sealed glass bottle. The method further comprises heating the sealed glass bottle in an oil bath, thereby forming a flower-like morphology sample of copper-cobalt oxysulfide and cleaning and drying the formed sample of copper-cobalt oxysulfide. Also disclosed is a hybrid supercapacitor (HSC) comprising copper-cobalt (Cu—Co) oxysulfide nanosheets (NFs) on Ni foam as positive electrode; and copper-cobalt (Cu—Co) oxysulfide nanosheets (NFs) on porous carbon as negative electrode.

Dependencies are inferred from the claim text.