Facile synthesis of CuCo2S4 as a novel electrode material for ultrahigh supercapacitor performance

Abstract

CuCo₂S₄ nanoparticles demonstrating outstanding electrochemical performances were firstly synthesized through a simple solvothermal approach without using any templates. CuCo₂S₄ synthesized in glycerol (CuCo₂S₄–glycerol) fulfills an ultrahigh capacitance of 5030 F g⁻¹ at 20 A g⁻¹ in a polysulfide electrolyte.