ZnO-template-mediated synthesis of three-dimensional coral-like MnO2 nanostructure for supercapacitors

Three dimensional porous coral-like MnO2 thin-film has been synthesized directly on stainless steel substrate by a facile ZnO-nanorod-array-mediated strategy. This unique porous MnO2 nanomaterial exhibits improved electrochemical performances for supercapacitor electrode.