Advanced Nanostructures Derived from Hybrid Composite of Polyaniline and rGO for High-Performance Supercapacitor Applications

The intensive investigation of supercapacitors and other advanced energy storage technologies has been driven by the growing demand for portable electronic devices, electrical equipment, and hybrid electric vehicles in the transportation sector. To develop these systems, it is crucial to have electrodes capable of high energy storage, along with suitable electrolytes to facilitate ion transport or conduction. These energy storage devices, which incorporate nanostructured and compact electrodes, exhibit excellent electrochemical performance. The hybrid nanostructured composites made of carbon allotropes and conducting polymers have received much attention recently due to their possible use in supercapacitors. They are perfect candidates for energy storage applications because of their high electrical conductivity, mechanical strength, and stability. We synthesized reduced graphene oxide by a modified Hummer’s method and composited it with aniline monomers by in situ chemical polymerization to fabricate nanostructured composites of polyaniline and graphene. The different samples were synthesized by varying their mass ratios followed by their characterization by different characterization techniques such as XRD, FTIR, Raman, FESEM, and cyclic voltammetry, etc.