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Functionalized-Graphene/Polyaniline Nanocomposites as Proficient Energy Storage Material: An Overview

Dipanwita Majumdar

Graphene-based materials owing to their unique and versatile properties, such as, larger surface area, high electrical conductivity, appreciable chemical stability and remarkable mechanical behavior, find promising applications in supercapacitors and other energy storage devices. Polyaniline (PANI), with outstanding high electrical conductivity, reversible redox, and doping/dedoping properties, and high environmental stability, has also been studied in great detail. In recent years, one- and two-dimensional (1D/2D) PANI nanostructures, including nanofibers, nanowires, nanorods, and nanotubes, and nanofilms, etc., have attracted much attention across scientific and engineering disciplines with the expectation that these materials could exhibit superior properties compared to their bulk counterparts in terms of mechanical strength, and charge transport. Thus efforts have been made to coalesce the individual properties so as to obtain high quality materials. Graphene/ polyaniline nanocomposites are easy processing, cost-effective materials. Besides, morphological variations also assist in tuning the effective area, porosity, electrical conductivity and consequently, the specific capacitance of these nanocomposites. Thus, the main focus of current research lies on designing, architecturing as well as amplifying their electrochemical behavior in such an order so to obtain promising applications in future electronics which has been highlighted in details in the present overview.