Electrochemical Performance of Fe2O3@PPy Nanocomposite as an Effective Electrode Material for Supercapacitor

Abstract

We report on the study of conductive polymer of polypyrrole and iron oxide (Fe2O3@PPy) nanocomposites, prepared via simple chemical oxidation method for energy storage applications. The synthesized nanocomposites are confirmed by the physico-chemical properties through Fourier transform infra-red spectroscopy, X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy results along with electrochemical impedance spectroscopy, cyclic voltammetry, galvanostatic charge–discharge and stability analyses. The surface morphological studies of SEM and high TEM images are substantiated the formation of Fe2O3@PPy nanocomposite via polymerization process. The prepared Fe2O3@PPy nanocomposites deliver at a specific capacity of 395.45 C/g at 5 mV/s scan rate. Moreover, Fe2O3@PPy nanocomposite shows an outstanding cycling stability of capacity 94.3% even after 10000 cycles of charge-discharge at the highest current density value of 10 A/g. The remarkable electrochemical energy storage manner of as-synthesized Fe2O3@PPy nanocomposite is considered as a potential electrode for supercapacitor application.