Improving the bimetallic interactions of CeO2@MnO2/MXenes for supercapacitor electrode applications

The characteristics of large surface area, high chemical firmness and virtuous electrical conductivity make MXene-based electrodes an emerging potential material for supercapacitor electrode applications. The qualities of invented electrodes were examined using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), UV–visible spectroscopy, and electrochemical analysis. The estimated specific capacitance of 1370 F g^-1 from cyclic voltammetry (CV) at a scan rate of 1.0 mVs⁻¹ and 1520 F g^-1 from galvanostatic charge-discharge (GCD) at 0.5 Ag^-1 current density, respectively, were obtained from the CeO₂@MnO₂/MXene electrode. The study's findings suggest that the addition of MXene caused the manufactured electrodes' electrochemical properties to improve. The electrodes CeO₂/MXene, MnO₂/MXene, and CeO₂@MnO₂/MXene have proven to be quite effective, which makes them a good option for supercapacitor electrode application. The CeO₂@MnO₂/MXene electrode was found to exhibit remarkable cyclic stability at 0.5 Ag^-1 current density, maintaining 73.5 % of its initial measurements after 10,000 full cycles.