Highly Ordered 1D NiCo2O4 Nanorods: An Efficient Hybrid Material for Electrochemical Energy Storage Application

Here, we presented the regularly arrayed nickel–cobalt oxide nanorods for use as a supercapacitor electrode. According to the findings of our research, the morphology of the nickel–cobalt oxides is highly dependent on the reaction time as well as the ratio of Ni/Co. When NiCo2O4 deposited on nickel foam, the fabricated electrodes show a specific capacitance of 950.6 Fg−1, when scanned at 2 mVs−1 in an aqueous electrolyte containing 4 M KOH and also reveals good charge/discharge stability as its initial capacitance dropped by just 15% even after 4000 cycles. In addition to this the energy and power density were found to be 16.7 Whkg−1, 233.2 Wkg−1 respectively at 7 mAcm−2 current density and demonstrating low impedance confirmed by electrochemical impedance spectroscopy (EIS). The electrode based on NiCo2O4 demonstrates excellent electrochemical characteristics all of which point to its promising application in supercapacitor devices.