This study investigates the impact of integrating g-C3N4 into CuCo2O4 electrodes on electrochemical performance working as binder-free electrodes. Flower-like CuCo2O4 nanostructures on nickel foam are decorated with few-layer g-C3N4 using a secondary hydrothermal process. The hierarchical g-C3N4/CuCo2O4 nanoflower electrode demonstrates a specific capacity of 247.5 mA h g-1 at a current density of 1 A g-1, while maintaining a capacity of 87.0 mA h g-1 at a heightened current density of 5 A g-1. Notably, this electrode exhibited remarkable durability, retaining 98% of its capacity after 1000 cycles. The g-C3N4/CuCo2O4 heterostructure shows promise for high-performance energy storage devices.
This journal is © The Royal Society of Chemistry.