Abstract

Nanostructured Zinc vanadate (Zn3(VO4)2) has been successfully synthesised via a simple and low-cost co-precipitation route. The Zn3(VO4)2 nanoparticles (NPs) possess a specific capacitance of 83.83 F/g at a current density of 1 A/g in 6 M KOH. Remarkably, the working electrode shows an excellent specific capacitance of 869.87 F/g in K3[Fe(CN)6] redox additive electrolytes (RAE). Moreover, the fabricated asymmetric supercapacitor (ASC) achieved 3.626 Wh/kg energy density and 3125 W/kg power density.

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