High mass loading flower-like MnO<sub>2</sub> on NiCo<sub>2</sub>O<sub>4</sub> deposited graphene/nickel foam as high-performance electrodes for asymmetric supercapacitors
Jing Jin, Jie Ding, Xing Wang, Congcong Hong, Huaping Wu, Min Sun, Xiehong Cao, Congda Lu, Aiping Liu
Abstract
A NiCo<sub>2</sub>O<sub>4</sub>/MnO<sub>2</sub> heterostructure with high mass loading MnO<sub>2</sub> microflowers was built on the surface of 3D graphene/nickel foam for the preparation of an asymmetric supercapacitor with splended energy density (45.9 Wh kg<sup>−1</sup>).
Topics & Concepts
SupercapacitorNickelGrapheneElectrodeMaterials scienceGraphene foamHigh massOptoelectronicsChemical engineeringNanotechnologyCapacitanceChemistryMetallurgyGraphene oxide paperPhysical chemistryAstrophysicsPhysicsEngineeringSupercapacitor Materials and FabricationAdvancements in Battery MaterialsGraphene research and applications