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Synthesis and Characterization of Novel Graphene Silicon Oxide Nanocomposite Material

  • Tanvir E Alam (a1), Manoj K. Ram (a2) (a3), Mikhail Ladanov (a1) (a4), Farah Alvi (a1), Ajit Mujumdar (a1) and Ashok Kumar (a1) (a2)...
Abstract

The primary objective of our work is to understand the nanocomposite structure of SiO2 coated over graphene (G) nanoplatelets. An attempt has been made to synthesize G-SiO2 nanocomposite using sol-gel technique. The G-SiO2 nanocomposite is characterized using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Raman spectroscopy, FTIR spectroscopy, and Electrochemical and Electrical measurement technique, respectively. The G-SiO2 nanocomposite reveals platelets characteristics much larger in size than the graphene nanoplatelets. The conductivity of G-SiO2 has been found to increase with an increase in the graphene ratio to SiO2 in nanocomposite material. The G-SiO2 has revealed interesting feature vibrational bands of graphene with SiO2 by varying the precursor of SiO2 with graphene moieties. The cyclic voltammetry studies have indicated the diffusion controlled system. The G-SiO2 nanocomposite shows interesting current–voltage characteristics with variation of graphene in nanocomposite. Our result is indicative of a transformable and viable G-SiO2 material for energy and electrical relay applications.

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