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Synthesis of High Quality Few Layer Graphene Sheets in Large Quantities by Radio Frequency Chemical Vapor Deposition

Published online by Cambridge University Press:  31 January 2011

Enkeleda Dervishi
Affiliation:
[email protected], University of Arkansas at Little Rock, UALR Nanotechnology Center, 2801 S. university ave, Little Rock, Arkansas, 72204, United States, 501-569-3203
Zhongrui Li
Affiliation:
[email protected], University of Arkansas at Little Rock, nanotechnology Center, 2801 S. University Ave, Little Rock, Arkansas, 72204, United States
Fumiya Watanabe
Affiliation:
[email protected], University of Arkansas at Little Rock, Nanotechnology Center, Little Rock, Arkansas, United States
Jimmy Shyaka
Affiliation:
[email protected], University of Arkansas at Little Rock, nanotechnology Center, 2801 S. University Ave, Little Rock, Arkansas, 72204, United States
Abhijit Biswas
Affiliation:
[email protected], University of Oklahoma, Department of Physics, Norman, Oklahoma, United States
Aurelie Courte
Affiliation:
[email protected], Ecole d'Ingenieurs du CESI-EIA, La Couronne, France
Jean Luc Umwungeri
Affiliation:
[email protected], University of Arkansas at Little Rock, nanotechnology Center, 2801 S. University Ave, Little Rock, Arkansas, 72204, United States
Alexandru R. Biris
Affiliation:
[email protected], National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
Alexandru S. Biris
Affiliation:
[email protected], United States
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Abstract

This work reports a low-cost method for large scale production of high quality graphene via radio-frequency chemical vapor deposition. High quantities of graphene were successfully synthesized on the Fe-Co/MgO (2.5:2.5:95 wt.%) catalytic system utilizing acetylene as a hydrocarbon source at 1000 °C. The as-produced graphene sheets were purified in a single step by washing with a diluted hydrochloric acid solution under sonication. Next, they were thoroughly characterized by microscopy, spectroscopy, and X-Ray diffraction. Advanced transmission electron microscopy and atomic force microscopy analyses have indicated the formation of 3-5 layered graphene nanosheets. Thorough analyses by Raman spectroscopy were also performed demonstrating the presence of high quality and few-layer graphene samples. This low cost and highly reproducible method may be applied in a straightforward way to produce large quantities of graphene for various advanced applications.

Type
Research Article
Copyright
Copyright © Materials Research Society 2010

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