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The unique properties of Graphene-based nanocomposites have attracted numerous investigations in the field of materials science from supercapacitors to drug delivery applications. Graphene has received attention as a probe or electrode material source for supercapacitors because it consists of low electrical resistance, large electrolyte accessibility based on the larger surface area and chemical stability. The extra properties of graphene show some promising application such as optical electronics, composites and others. Supercapacitors are able to store more energy and can be fully charged / discharged at high speeds. This review has been mainly focused on the following points namely synthesis route of Graphene which consists of Bottom-Up and Top-Down approaches, are more difficult and hindering the massive production of graphene. We have also discussed the different techniques utilized for the synthesis of reduced graphene oxide namely thermally, hydrothermally, partially and electrochemically reduced graphene oxide and its electrochemical behavior. Analysis of these results inferred the specific capacitance in the range of 220,223.6, 225 and 230 F/g (acid and neutral). The characterization of Graphene/Nanocomposites by RAMAN, FTIR, SEM and TEM analysis were also reviewed and found to be suitable for supercapacitors. In this review, the current development of the synthesis route of graphene oxide and its composites with future prospects is presented and discussed.

A COMPREHENSIVE REVIEW ON THE NANOCOMPOSITES OF GRAPHENE AND ITS DERIVATIVES IN THE APPLICATION OF SUPERCAPACITORS