Investigating the potential of graphene-doped Nickle Lanthanum Ferrites for supercapacitor electrode material

Abstract According to the demand of intensive research for supercapacitor electrode material, the graphene-doped Nickel Lanthanum Ferrites (NiLaFe2O3) have been synthesized to explore their potential and unique properties in electrochemical performance. The graphene is synthesized by hummer method and then doped into NiLaFe2O3 by hydrothermal method. The graphene doped NiLaFe2O3 is characterized by XRD and SEM to analyze its structural and morphological properties. The Fourier Transform Infrared Spectroscopy (FTIR) and UV analysis is performed, to explore the molecular structure and band gap of material respectively. The TEM analysis is performed to envision the ultrastructure of composite at nanometer scale resolution. Finally, the electrochemical performance of graphene-doped NiLaFe2O3 is calculated by making electrode. The slurry for electrode material is prepared by using polyvinylidene fluoride (PVDF) and activated carbon. The evaluation of electrochemical performance is comprised by commissioning cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge-discharge (GCD) measurements.