Enhanced electrochemical characteristics of rGO incorporated NiFe2O4 nanorods electrode structure for supercapacitor applications

In the search for high-performance supercapacitors, NiFe 2 O 4 nanorods infused with reduced graphene oxide (rGO) demonstrate significant potential as an electrode material. This study explores the synthesis of NiFe 2 O 4 nanorods using a hydrothermal method and their subsequent integration with rGO to form a composite material. The electrochemical properties of the NiFe 2 O 4 @rGO composite are systematically evaluated. The results indicate that the composite exhibits enhanced electrochemical performance, attributed to the synergistic effects of NiFe 2 O 4 and rGO. The rGO provides a conductive matrix, facilitating rapid electron transport with the overall conductivity and stability of the electrode material. The NiFe 2 O 4 nanorods, evenly distributed on the rGO sheets, contribute to the specific capacitance, energy density and power density of 679.62 F g -1 , 60.41 Whkg -1 and 0.4 kW kg -1 , respectively. The retention rate after 5,000 cycles was 91.8%. This study highlights the composite's potential for application in supercapacitors, offering insights into the optimal synthesis and characterisation techniques necessary for advancing energy storage technologies. • NiFe 2 O 4 nanorods integrated with rGO for high-performance supercapacitors • Achieved 679.62 F g -1 capacitance and 60.41 Whkg -1 energy density • Power density of 3.91 kW kg -1 supports practical energy storage applications • 91.8% capacity retention after 5,000 cycles demonstrates stability