A hybrid of CoOOH nanorods with carbon nanotubes as a superior positive electrode material for supercapacitors

摘要: A hybrid of CoOOH nanorods with conductive MWCNTs is successfully prepared. Due to the introduction MWCNTs, diameter smaller than that pristine nanorods. Because nanostructure network and nanorods, it exhibits high capacitance, good high-rate capability excellent cycling performance as a positive electrode for supercapacitors in 0.5 mol L−1 KOH aqueous electrolyte. Its specific capacity 312 F g−1 at current density 1 g−1, 182 even 10 g−1. After 10 000 full cycles, capacitance retention 97%. The great promise practical application.