Facile synthesis of CeSe₂@CNs nanostructure for enhanced water oxidation

Using a hydrothermal technique, we created a composite of cerium selenide incorporated carbon nanospheres (CeSe₂@CNs) nanocomposite. The carbon nanospheres and CeSe₂ agglomerated nanorods were also created for comparison studies. X-rays diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and N₂ adsorption-desorption isotherm are all utilized to describe the produced samples. The CeSe₂ nanorods were introduced into the microporous hollow carbon nanospheres to create amorphous textured integrated CeSe₂@CNs. This increased the intrinsic activity of CeSe₂@CNs for oxygen evolution reaction (OER) along with the active electrocatalytic surface area. OER in 1 M KOH alkaline solution can be initiated by the highly applied electrocatalyst CeSe₂@CNs at 1.51V vs RHE, and 10 mAcm⁻² was obtained at 298 mV overpotential. Additionally, at 315 mV and 335 mV overpotentials, it was able to attain greater current densities of 50 and 80 mAcm⁻². As opposed to this, integrated composite CeSe₂@CNs have amazing stability and durability and can continuously produce O₂ gas bubbles for 10 h without any deterioration in current density for constant 1000 CV cycles.