Synthesis of Ni-Co nanocomposite based on nitrogen doped graphene forsupercapacitor

Nickel-cobalt binary oxide/reduced graphene oxide (NiCo/N-RGO) composite with highcapacitance is synthesized via mild method for electrochemical capacitors. As an appropriatematrix, RGO is beneficial to form homogeneous structure and improve the electron transportability. Graphene is synthesized from graphite electrodes using ionic liquid-assistedelectrochemical exfoliation.Herein, we report the synthesis and electrochemical properties of heteroatoms -doped reducedgraphene oxide (NRGO) supported Co, Ni and NiCo nanocomposites. We demonstrate theefficient doping of reduced graphene oxide (RGO) by hetroatoms and its capacitive performancewas calculated by cyclic voltammetry and charge–discharge cycling in 6M KOH solution.

کلیدواژه ها:

Nanocomposite ، Nickel ، Cobalt ، Super capacitor ، Graphene ، Hetroatoms