Fabrication of Graphene-Fe3O4-Polypyrrole based ternary material as an electrode for Pseudocapacitor application

An attempt has been made to prepare Graphene-Fe 3 O 4 -polypyrrole (GFP) based ternary material as an electrode for pseudocapacitors. The GFP nanocomposite materials were fabricated well by a simple hydrothermal route. as-prepared characterized conventional analytical techniques. Polypyrrole helps the Fe nanoparticles anchor on graphene oxide surface and inhibits aggregation of sheets particles. It also improves electrochemical performance estimate behavior prepared cyclic voltammetry (CV), galvanostatic charge–discharge, Electrochemical impedance spectroscopy (ESI) in which three-electrode system used at room temperature aqueous electrolyte. effect scan rate current density studied performance. At constant 2.5 A/g, maximum specific capacitance 180.18F/g is found 204F/g 1 M KOH solution composite 5 mV/s rate. Furthermore, energy 140.76 Wh/kg exhibited capacitor reasonable high-power 5680 W/kg, appreciably greater than parent materials.