水热合成掺钕Co3O4纳米结构作为超级电容器电极

The advancement of various renewable energy conversion technologies encourages investment in high-efficiency energy storage systems. The transition metal oxides are extensively employed as electrodes for supercapacitor applications; however, certain limitations persist, including small surface area and poor conductivity, among others. However, doping is regarded as an effective method to address the limitations of transition metal oxides. The present investigation employed a hydrothermal synthesis route to enhance the capacitive properties of Co 3 O 4 by doping with different amounts of neodymium ion (Nd 3+ ). The different techniques were employed to investigate the physiochemical structure of the fabricated materials. Moreover, galvanostatic charge–discharge (GCD) analysis at 1 A/g, revealed that Co 3 O 4 nanoparticles doped with Nd 3+ at a concentration of 5.0 mol% exhibited remarkable retention capacitance of (95.45%) and specific capacitance ( C s ) (1398 F/g). According to the results of the EIS test, the material exhibited outstanding electrical conductivity. The greater surface area responsible for providing the shorter diffusion path length to improve the capacitive properties. Moreover, findings derived from these experiments specify that the utilization of Nd doped Co 3 O 4 exhibits significant promise in the realm of energy storage application.