Influence of solvents in the preparation of cobalt sulfide for supercapacitors

Figure S1. XPS spectrum of CoS electrode using ethanol as solvent of magnified S2p peak on the surface of nickel foam substrate.; Table S1. Oxidation and reduction current densities of CoS electrode prepared with different solvents such as water, ethanol and Water:Ethanol at different scan rate from 10-100 mV/s.