Due to their unique one-dimensional nanostructure along with excellent mechanical, electrical, and optical properties, carbon nanotubes (CNTs) become a promising material for diverse nanotechnology applications. However, large-scale and structure controlled synthesis of CNTs still have many difficulties due to the lack of understanding of the fundamental growth mechanism of CNTs, as well as the difficulty of controlling atomic-scale physical and chemical reactions during the nanotube growth process. Especially, controlling the number of graphene wall, diameter, and chirality of CNTs are the most important issues that need to be solved to harness the full potential of CNTs. Here we report the large-scale selective synthesis of vertically aligned single walled carbon nanotubes (SWNTs) and double walled carbon nanotubes (DWNTs) by controlling the size of catalyst nanoparticles in the highly effective oxygen assisted thermal chemical vapor deposition (CVD) process. We also demonstrate a simple but powerful strategy for synthesizing ultrahigh density and diameter selected vertically aligned SWNTs through the precise control of carbon flow during a thermal CVD process.
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e-mail: mghahm@coe.neu.edu
e-mail: ykkwon@khu.ac.kr
e-mail: jungy@coe.neu.edu
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Structure Controlled Synthesis of Vertically Aligned Carbon Nanotubes Using Thermal Chemical Vapor Deposition Process
Myung Gwan Hahm,
Myung Gwan Hahm
Department of Mechanical and Industrial Engineering, NSF Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing,
e-mail: mghahm@coe.neu.edu
Northeastern University
, Boston, MA 02115
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Young-Kyun Kwon,
Young-Kyun Kwon
Department of Physics and Research Institute for Basic Sciences,
e-mail: ykkwon@khu.ac.kr
Kyung Hee University
, Seoul 130-701, Korea
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Ahmed Busnaina,
Ahmed Busnaina
Department of Mechanical and Industrial Engineering, NSF Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing,
Northeastern University
, Boston, MA 02115
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Yung Joon Jung
Yung Joon Jung
Department of Mechanical and Industrial Engineering, NSF Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing,
e-mail: jungy@coe.neu.edu
Northeastern University
, Boston, MA 02115
Search for other works by this author on:
Myung Gwan Hahm
Department of Mechanical and Industrial Engineering, NSF Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing,
Northeastern University
, Boston, MA 02115e-mail: mghahm@coe.neu.edu
Young-Kyun Kwon
Department of Physics and Research Institute for Basic Sciences,
Kyung Hee University
, Seoul 130-701, Koreae-mail: ykkwon@khu.ac.kr
Ahmed Busnaina
Department of Mechanical and Industrial Engineering, NSF Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing,
Northeastern University
, Boston, MA 02115
Yung Joon Jung
Department of Mechanical and Industrial Engineering, NSF Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing,
Northeastern University
, Boston, MA 02115e-mail: jungy@coe.neu.edu
J. Heat Transfer. Mar 2011, 133(3): 031001 (4 pages)
Published Online: November 15, 2010
Article history
Received:
June 15, 2009
Revised:
January 13, 2010
Online:
November 15, 2010
Published:
November 15, 2010
Citation
Hahm, M. G., Kwon, Y., Busnaina, A., and Jung, Y. J. (November 15, 2010). "Structure Controlled Synthesis of Vertically Aligned Carbon Nanotubes Using Thermal Chemical Vapor Deposition Process." ASME. J. Heat Transfer. March 2011; 133(3): 031001. https://doi.org/10.1115/1.4002443
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