α-MnO2 nanotube@δ-MnO2 nanoflake hierarchical structure on three-dimensional graphene foam as a lightweight and free-standing supercapacitor electrode
Mi He, Linli Cao, Weilong Li, Xinwei Chang, Zhaoyu Ren
Topics & Concepts
SupercapacitorMaterials scienceElectrodeCapacitanceGrapheneElectrochemistryComposite numberEnergy storageNanotechnologyCurrent densityComposite materialChemical engineeringChemistryEngineeringQuantum mechanicsPower (physics)PhysicsPhysical chemistrySupercapacitor Materials and FabricationAdvancements in Battery MaterialsAdvanced Sensor and Energy Harvesting Materials