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Numerical Simulation of Multiwalled Carbon Nanotube Growth in a Tube Flow Chemical Vapor Deposition Reactor

[+] Author Affiliations
Jeffrey J. Lombardo, Wilson K. S. Chiu

University of Connecticut, Storrs, CT

Paper No. IHTC14-22605, pp. 381-385; 5 pages
doi:10.1115/IHTC14-22605
From:
  • 2010 14th International Heat Transfer Conference
  • 2010 14th International Heat Transfer Conference, Volume 6
  • Washington, DC, USA, August 8–13, 2010
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-4941-5 | eISBN: 978-0-7918-3879-2
  • Copyright © 2010 by ASME

abstract

The deposition rate of carbon nanotubes in a tube flow CVD reactor was studied over different temperatures and inlet gas concentrations with a focus on particle size and the number nanotube walls per particle. It was found that larger particles and higher numbers of walls increased the use of carbon and required a higher concentration of the carbon feedstock gas, methane. These results show that optimizing reactor conditions will require tailoring the feedstock gas concentrations according to the particle size and expected number of walls per nanotube in order to ensure that there is enough carbon to facilitate nanotube forming reactions.

Copyright © 2010 by ASME

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