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Synthesis and Characterization of Novel Graphene Silicon Oxide Nanocomposite Material

Published online by Cambridge University Press:  16 March 2012

Tanvir E Alam ,
Manoj K. Ram ,
Mikhail Ladanov ,
Farah Alvi ,
Ajit Mujumdar  and
Ashok Kumar
Tanvir E Alam
Affiliation:
Department of Mechanical Engineering, University of South Florida.
Manoj K. Ram
Affiliation:
Nanotechnology Research and Education Center (NREC), University of South Florida Clean Energy Research Center (CERC), University of South Florida, 4202 E Fowler Avenue, Tampa, FL, 33620-5350.
Mikhail Ladanov
Affiliation:
Department of Mechanical Engineering, University of South Florida. Department of Electrical Engineering, University of South Florida.
Farah Alvi
Affiliation:
Department of Mechanical Engineering, University of South Florida.
Ajit Mujumdar
Affiliation:
Department of Mechanical Engineering, University of South Florida.
Ashok Kumar
Affiliation:
Department of Mechanical Engineering, University of South Florida. Nanotechnology Research and Education Center (NREC), University of South Florida
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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.

Keywords

sol-gelcompositenanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1400: Symposium S – Solution Processing of Inorganic and Hybrid Materials for Electronics and Photonics , 2012 , mrsf11-1400-s08-07
Copyright
Copyright © Materials Research Society 2012

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References

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