Millimeter-thick single-walled carbon nanotube forests: Hidden role of catalyst support

Suguru Noda, Kei Hasegawa, Hisashi Sugime, Kazunori Kakehi, Zhengyi Zhang, Shigeo Maruyama, Yukio Yamaguchi

研究成果: Article

174 引用 (Scopus)

抄録

A parametric study of so-called "super growth" of single-walled carbon nanotubes (SWNTs) was done by using combinatorial libraries of iron/aluminum oxide catalysts. Millimeter-thick forests of nanotubes grew within 10 min, and those grown by using catalysts with a thin Fe layer (about 0.5 nm) were SWNTs. Although nanotube forests grew under a wide range of reaction conditions such as gas composition and temperature, the window for SWNT was narrow. Fe catalysts rapidly grew nanotubes only when supported on aluminum oxide. Aluminum oxide, which is a well-known catalyst in hydrocarbon reforming, plays an essential role in enhancing the nanotube growth rates.

元の言語English
ジャーナルJapanese Journal of Applied Physics, Part 2: Letters
46
発行部数17-19
DOI
出版物ステータスPublished - 2007 5 11
外部発表Yes

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Single-walled carbon nanotubes (SWCN)
Catalyst supports
Nanotubes
nanotubes
carbon nanotubes
catalysts
Catalysts
aluminum oxides
Aluminum
Oxides
gas composition
Reforming reactions
gas temperature
iron oxides
hydrocarbons
Hydrocarbons
Iron
Chemical analysis
Gases
Temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

これを引用

Millimeter-thick single-walled carbon nanotube forests : Hidden role of catalyst support. / Noda, Suguru; Hasegawa, Kei; Sugime, Hisashi; Kakehi, Kazunori; Zhang, Zhengyi; Maruyama, Shigeo; Yamaguchi, Yukio.

:: Japanese Journal of Applied Physics, Part 2: Letters, 巻 46, 番号 17-19, 11.05.2007.

研究成果: Article

Noda, Suguru ; Hasegawa, Kei ; Sugime, Hisashi ; Kakehi, Kazunori ; Zhang, Zhengyi ; Maruyama, Shigeo ; Yamaguchi, Yukio. / Millimeter-thick single-walled carbon nanotube forests : Hidden role of catalyst support. :: Japanese Journal of Applied Physics, Part 2: Letters. 2007 ; 巻 46, 番号 17-19.
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