General synthesis of hierarchical C/MOx@MnO2 (M = Mn, Cu, Co) composite nanofibers for high-performance supercapacitor electrodes
General synthesis of hierarchical C/MOx@MnO2 (M = Mn, Cu, Co) composite nanofibers for high-performance supercapacitor electrodesGeneral synthesis of hierarchical C/MOx@MnO2 (M = Mn, Cu, Co) composite