Investigation of Flower-like ZnCo2O4 Nanowire Arrays Growth on 3D-Ni Foam as Supercapacitor Electrode Material

Abstract

As a supercapacitor electrode material, flower-like ZnCo 2 O 4 nanowire (NW) arrays were directly grown on 3D-Ni foam using the hydrothermal method. Structural and morphological analysis of the electrode material was characterized by XRD, FE-SEM, and EDS, while its electrochemical analysis was characterized by CV, GCD, and EIS. The electrode material demonstrated excellent electrochemical performance with a maximum areal capacitance of 1.01 F cm -2 at a current density of 0.5 mA cm -2 . After 2.000 charge-discharge cycles, the electrode showed excellent cycle stability, having 72% of the initial areal capacitance.