Devolopment of Co-doped Fe2O3 Nanoparticles for Electrochemical Supercapacitor

Abstract

Co-doped Fe₂O₃ nanoparticles were synthesized by the co-precipitation method. These crystalline nanostructures were characterized using X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscope (TEM). The electrochemical characteristics include charge–discharge cycling, which improves the conductivity and capacitance for the high-performance supercapacitor. The CV analysis of the pure Fe₂O₃ and Co-doped Fe₂O₃ electrode was distinctive in the 1 M KOH solution case. The nanoparticle size electrode reveals enhanced specific capacitance compared to Co-doped Fe₂O₃ and Fe₂O₃ to the electrode has a specific capacitance of about 33.50 F×g^-1 and 13.74 F×g^-1 with a scan rate 5 mV×s^-1.

Keywords: Supercapacitor, Co-precipitation method, Electrochemical, Energy storage