Polyvinylpyrrolidone and freeze drying-assisted growth of an α-Ni(OH)<sub>2</sub>/reduced graphene oxide hybrid structure as a superior electrode material for supercapacitors
Ramadan A. Geioushy, Sayed Y. Attia, Saad G. Mohamed, A. A. Ragab, Osama A. Fouad
Abstract
The electrode of 30 wt% α-Ni(OH)<sub>2</sub>/rGO hybrid structure displayed a promising material for supercapacitors. It showed a specific capacitance (capacity) of 1050 F g<sup>−1</sup> (580 C g<sup>−1</sup>), and its hybrid device exhibited a high energy density of 60 W h kg<sup>−1</sup>.
Topics & Concepts
SupercapacitorChemistryGrapheneElectrodePolyvinylpyrrolidoneCapacitanceOxideHybrid materialChemical engineeringNanotechnologyPolymer chemistryPhysical chemistryOrganic chemistryEngineeringMaterials scienceSupercapacitor Materials and FabricationAdvancements in Battery MaterialsElectrochemical sensors and biosensors