Purification of single-wall carbon nanotubes synthesized from alcohol by catalytic chemical vapor deposition

Shingo Okubo, Takeshi Sekine, Shinzo Suzuki, Yohji Achiba, Kazuhito Tsukagoshi, Yoshinobu Aoyagi, Hiromichi Kataura

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

The purification of single-wall carbon nanotubes synthesized by alcohol catalytic chemical vapor deposition (ACCVD) was performed for the first time. Subsequent use of aqueous solutions of sodium hydroxide and hydrochloric acid removed the main impurities, such as the support zeolite and the catalyst metal particles, from the as-grown material. The obtained samples were characterized by transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and Raman spectroscopy. The present purification protocol has some advantages, in terms of cost, safety, and large applicability for other carbon materials formed on zeolite.

Original languageEnglish
Pages (from-to)L396-L398
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume43
Issue number3 B
DOIs
Publication statusPublished - 2004 Mar 15
Externally publishedYes

Keywords

  • Carbon nanotube
  • Chemical vapor deposition
  • Purification
  • Raman spectroscopy
  • Transmission electron microscopy
  • Zeolite

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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