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

*この研究の対応する著者

研究成果: Article査読

194 被引用数 (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.

本文言語English
ページ(範囲)L399-L401
ジャーナルJapanese Journal of Applied Physics, Part 2: Letters
46
17-19
DOI
出版ステータスPublished - 2007 5 11
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(その他)
  • 物理学および天文学(全般)

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