Behavior of NiO–MnO2/MWCNT composites for use in a supercapacitor

Abstract. NiO–MnO2/MWCNT composite was formed by a simple chemical precipitation method using a chelating agent and Ni and Mn hydroxides on MWCNT. The NiO–MnO2/MWCNT was pretreated by ultrasonication, followed by thermal annealing at 300 ◦C. The material obtained was applied as an electrode in a supercapacitor. FT-IR, EDS, XRD, FE-SEM and FE-TEM were used to characterize the structura…