Sub-millimeter-long carbon nanotubes repeatedly grown on and separated from ceramic beads in a single fluidized bed reactor

Dong Young Kim, Hisashi Sugime, Kei Hasegawa, Toshio Osawa, Suguru Noda*

*この研究の対応する著者

研究成果: Article査読

60 被引用数 (Scopus)

抄録

A semi-continuous fluidized-bed process is reported which rapidly converts acetylene into carbon nanotubes (CNTs). Catalysts are first immobilized on ceramic beads and CNTs are then grown on the beads and then separated from them in a repetitive process accomplished within a single reactor simply by switching gases at a fixed temperature. CNTs of 6-10 nm diameter, three walls on average, 0.4 mm length and 99 wt.% purity were synthesized at an yield of over 70% in a reactor residence time shorter than 0.3 s. The easy and efficient production of such CNTs with in situ separation from the catalysts may accelerate the development of CNT-based nanotechnology industries.

本文言語English
ページ(範囲)1972-1979
ページ数8
ジャーナルCarbon
49
6
DOI
出版ステータスPublished - 2011 5月
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)

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