REDUCED GRAPHENE OXIDE/MANGANESE(IV) OXIDE NANOCOMPOSITE AND ELECTRODE COMPRISING SAME, METHOD OF MANUFACTURE OF VARIOUS GRAPHENE MATERIAL/METAL OXIDE NANOCOMPOSITES

摘要

A reduced graphene oxide/manganese(IV) oxide nanocomposite is provided. This nanocomposite comprises reduced graphene oxide flakes and manganese oxide nanoparticles distributed on the surface of the flakes. Electrodes comprising this nanocomposite are also provided. Embodiments of such electrodes displayed broad voltage windows. A method for producing the nanocomposites as well as other nanocomposites is also provided. The method comprises the step of electrochemically exfoliating graphite in an exfoliation electrolyte comprising an intercalant and a precursor which is an oxometallate, a polyoxometalate, a thiometallate, or metal salt together with an acid.