Facile synthesis of g-C<sub>3</sub>N<sub>4</sub>quantum dots/graphene hydrogel nanocomposites for high-performance supercapacitor
Di Liu, Tran Van Tam, Won Mook Choi
Abstract
and a superior cycling stability with a capacitance retention of 89.5% after 15 000 cycles. The observed improvements in the electrochemical performance of CNQ/GH electrodes are attributed to the large surface area with abundant mesopores and various C-N bonds in CNQDs, which promote efficient ion diffusion of electrolyte and electron transfer and provide more active sites for faradaic reactions. These obtained results demonstrate a facile and efficient route to develop potential electrode materials for high-performance energy storage device applications.
Topics & Concepts
SupercapacitorMaterials scienceGrapheneNanocompositeQuantum dotCapacitanceElectrodeNanotechnologyElectrochemistryElectrolyteChemical engineeringSpecific surface areaElectron transferMesoporous materialChemistryCatalysisPhotochemistryOrganic chemistryEngineeringPhysical chemistrySupercapacitor Materials and FabricationElectrochemical sensors and biosensorsAdvanced Sensor and Energy Harvesting Materials