Hierarchical NiCo₂O₄@MnO₂core–shell heterostructured nanowire arrays on Ni foam as high-performance supercapacitor electrodes

Abstract

An advanced integrated electrode for high-performance supercapacitors has been designed by growing hierarchical NiCo(2)O(4)@MnO(2) core-shell heterostructured nanowire arrays on nickel foam. Such unique array nanoarchitectures exhibit remarkable electrochemical performance with high capacitance and desirable cycle life at high rates.