the effect of boron reinforced on the supercapacitor performance of rgo/zno:b composite electrodes

In this study, zinc chloride (zncl2) was used as a precursor chemical to form boron-reinforced zinc oxide (zno: b) particles. the supercapacitor performance of the reduced graphene oxide/boron reinforced zinc oxide (rgo/zno: b) composite electrodes produced by hydrothermal methods and the impact of different boron doping ratios on the capacitance, were both examined. the characterization of the rgo/zno: b composites containing 5%, 10%, 15%, and 20% boron by weight was performed using x-ray diffraction (xrd) and scanning electron microscopy (sem). the capacitance measurements of the electrodes produced were conducted in a 6 m koh aqueous solution with a typical three-electrode setup using iviumstat potentiostat/galvanostatic cyclic voltammetry. the specific capacitance value of the 20% reinforced rgo/zno: b composite electrode was 155.88 f/g, while that of the rgo/zno composite electrode was 36.37 f/g. according to this result, the capacitance increased four-fold with a 20% boron doping concentration. moreover, a longer cycle performance was observed for the rgo/zno: b electrodes with higher boron doping concentrations.