Abstract

We fabricated a nanostructured thin film electrode composed of graphene oxide-supported, metal-doped oxide, incorporating conducting transition metals oxides of Mn-Cu-Co mixed oxides. The resulting GO-supported Mn/Cu-Co3O4 composite exhibits potential for energy storage applications utilizes the cost-effective, and suited preparative methodology, offering a promising platform for high-performance supercapacitors comprises the novel seed layer deposition strategy on the nickel (Ni) substrate. The structure and morphological traits CuCo2O4/GO (CCG), MnCo2O4/GO (MCG), and MnCuCo2O4/GO (MCCG) thin films were systematically acterized by using various physicochemical (FT-IR, SEM-EDX, XRD, and AFM techniques) and electrochemical investigations, which includes cyclic voltammetry (CV), charge-discharge (CHDH) efficiency and EIS reveals the intrinsic properties of modified mixed oxide base electrodes. Cyclic voltammetric analysis revealed that MCG, CCG, and MCCG thin film electrodes achieved specific capacitances of 450, 500, and 850 respectively, at a scan rate of 2 mV/s. In addition, their charge-discharge capacitance (CHDH) was found 600, 500, and 823 F g-1, highlighting the superior energy storage performance of the MCCG electrode. the other mixed oxide-based materials, MCCG based electrode exhibits stable specific capacitance over charge-discharge performance utilizes the excellent cyclic stability and long-term energy storage system. analysis investigates average specific capacitances of 500, 727, and 878 F g-1 for, the CCG, MCG, and electrodes, respectively. The proposed synthesis approach is environmentally friendly and cost-effective, a promising strategy for the development and large-scale manufacturing of next-generation energy devices.