Comparison of the capacitance of MnCo2O4 supercapacitor electrode synthesized with different morphologies

In this research, manganese cobaltite (MCO) nanoparticles with different morphologies were synthesized by a simple hydrothermal method with excellent electrochemical properties. To investigate the physical features of prepared samples, XRD analysis was used to study the crystalline structure. The SEM and TEM proved that the morphology of synthesized materials formed as flake and nanoplane structures. The electrode of samples was prepared using the hydrothermal method and the electrochemical properties of samples were investigated by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), electrochemical impedance spectroscopy (EIS) and cyclic stability analysis. Results showed that the flake structures of nanoparticles revealed the highest capacitance of 1971.98 F.g(-1) at 0.5 Ag-1 as well as longer stability compared to the others with the nanoplane structure. The high cyclic stability of 91.47% after 5000 cycles introduces this electrode as a durable and promising electrode for use in energy storage devices.

Automated summary

Manganese cobaltite (MCO) nanoparticles with different morphologies were synthesized by a simple hydrothermal method and showed excellent electrochemical properties. XRD analysis confirmed the crystalline structure, while SEM and TEM revealed flake and nanoplane structures. The samples were tested using CV, GCD, EIS, and cyclic stability analysis, with the flake structures demonstrating the highest capacitance and longer stability compared to the nanoplane structures. After 5000 cycles, the electrode exhibited a high cyclic stability of 91.47%, making it a promising and durable option for energy storage devices.