Single-walled carbon nanotubes are considered the most attractive material and a lot of synthesis processes are developed. Among these synthesis processes chemical vapor deposition processes are considered to be most suitable for macroscopic production. In many CVD processes the alcohol catalytic CVD process can be the best process because it can produce very pure nanotubes without any purification. However, cobalt is essential as a catalyst that makes the flexibility of catalysts restricted. In this paper, our investigation mainly focused on as follows: The efficiency of combined catalysts with/without cobalt. The diameter distributions against catalysts density. The electrical states of catalysts near Fermi level. Consequently, almost all of cobalt containing catalysts worked well, and the diameter distributions were proportional to the particle size. Efficient catalysts had enough states around Fermi level and the cobalt-less efficient catalyst cluster model showed the similar density of state to the cobalt cluster. Thus, noticing to the DOS, other efficient catalysts can be discovered and the diameter distribution will be controllable by adjusting temperature, a catalyst size, and a catalyst combination without any complicated techniques and facilities.
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ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference
July 8–12, 2007
Vancouver, British Columbia, Canada
Conference Sponsors:
- Heat Transfer Division
ISBN:
0-7918-4275-4
PROCEEDINGS PAPER
Selective Synthesis of Single-Walled Carbon Nanotubes by Blending Catalysts
Shuhei Inoue,
Shuhei Inoue
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
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Takeshi Nakajima,
Takeshi Nakajima
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
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Kazuya Nomura,
Kazuya Nomura
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
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Yoshihiro Kikuchi
Yoshihiro Kikuchi
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
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Shuhei Inoue
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
Takeshi Nakajima
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
Kazuya Nomura
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
Yoshihiro Kikuchi
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
Paper No:
HT2007-32524, pp. 373-379; 7 pages
Published Online:
August 24, 2009
Citation
Inoue, S, Nakajima, T, Nomura, K, & Kikuchi, Y. "Selective Synthesis of Single-Walled Carbon Nanotubes by Blending Catalysts." Proceedings of the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 2. Vancouver, British Columbia, Canada. July 8–12, 2007. pp. 373-379. ASME. https://doi.org/10.1115/HT2007-32524
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