Ethylene glycol-mediated direct synthesis of nanostructured nickel oxide-carbon composite material on nickel foam and its electrochemical property

A convenient ethylene glycol (EG)-mediated one-pot solvothermal route was designed for direct synthesis of nanostructured nickel oxide-carbon composite material on nickel foam. EG was employed as solvent, complex agent and carbon source. Furthermore, cyclic voltammetry and constant current charge-discharge measurements confirmed that the composite material electrode displayed good electrochemical activity with a maximum specific capacitance of 539 F g^-1 at a current density of 0.25 A g^-1.