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Proceedings Paper

Catalytic activities of metals for single-wall carbon nanotube growth during CO2 laser vaporization
Author(s): Fumio Kokai; T. Kameshima; T. Miyazaki; Kunimitsu Takahashi; Daisuke Kasuya; Masako Yudasaka; Sumio Iijima
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Paper Abstract

Catalytic activities of Fe, Pt, and Ni/Co metals were compared in the synthesis of single-wall carbon nanotubes (SWNTs) by using CO2 laser vaporization. In room temperature laser vaporization in AR gas under pressures of 150-760 Torr, a small amount of SWNTs, forming thin bundles, were synthesized by Pt and Ni/Co catalysts. However, SWNTs were not synthesized by using an Fe catalyst. The central diameters of SWNTs were 1.51 and 1.33 nm for the Pt and Ni/Co catalysts, respectively. At 1200 degree(s)C, thick bundles of SWNTs with a central diameter of 1.39nm were synthesized for Ni/Co in high yield (>70%0. However, the increase in SWNT yield was not significant when using a Pt catalyst at 1200 degree(s)C. We discuss catalytic growth of SWNTs in terms of eutectic temperatures of Pt-C and Ni/Co-C phases.

Paper Details

Date Published: 18 March 2002
PDF: 5 pages
Proc. SPIE 4636, Nanoscience Using Laser-Solid Interactions, (18 March 2002); doi: 10.1117/12.459731
Show Author Affiliations
Fumio Kokai, Institute of Research and Innovation (Japan)
T. Kameshima, Chiba Institute of Technology (Japan)
T. Miyazaki, Chiba Institute of Technology (Japan)
Kunimitsu Takahashi, Institute of Research and Innovation (Japan)
Daisuke Kasuya, Meijo Univ. (Japan)
Masako Yudasaka, Japan Science and Technology Corp. (Japan)
Sumio Iijima, Meijo Univ. and Japan Science and Technology Corp. and NEC Corp. (Japan)

Published in SPIE Proceedings Vol. 4636:
Nanoscience Using Laser-Solid Interactions
Kouichi Murakami; David B. Geohegan; Frank Traeger, Editor(s)

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