Enhanced electrochemical activity of PVA assisted CuFe2O4 nanoparticles as a potential electrode for the fabrication of high energy density hybrid supercapacitor

Abstract

Magnetic nanomaterials with unique physicochemical properties create a new era by providing enhanced electrochemical activity in the field of supercapacitors. In this work, the polyvinyl alcohol assisted copper ferrite (CFO-PVA) nanoparticles have been synthesized simple co-precipitation technique. The supercapacitor electrode materials have been fabricated by CFO-PVA electrode, delivering a high specific capacity of 169 C/g at 10 mV/s. based on the Trasatti method, the charge accumulation process has been identified and the total, outer, and inner capacities of CFO-PVA are 595.23, 8, and 587.23 C/g correspondingly and their contributions of capacitive and diffusion are 98% and 2% respectively. In addition, the CFO-PVA//AC hybrid supercapacitor device (HSC) has been prepared and their maximum specific capacitance is to be 60 C/g at the current density of 1 A/g together with their high energy density of about 18.75 Wh/kg and their respective high power density of 3012 W/kg.