Synthesis-condition dependence of carbon nanotube growth by alcohol catalytic chemical vapor deposition method

Nobuhito Inami, Mohd Ambri Mohamed, Eiji Shikoh, Akihiko Fujiwara

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We report the dependence of growth yield of single-walled carbon nanotubes (SWNTs) on heat-treatment time and catalyst film thickness by the alcohol catalytic chemical vapor deposition method. Three types of heat-treatment, synthesis of 30 min, synthesis of 30 min after annealing of 30 min, and synthesis of 60 min, were investigated. Thickness of Co catalyst film was varied from 1 to 10 nm. In the case of thinner Co film less than 3 nm, long synthesis time of 60 min is favorable for the effective SWNT growth, because of the small amount of Co catalyst. In the case of thicker Co film more than 3 nm, an amount of grown SWNTs by 30 min synthesis after 30 min annealing and by 60 min synthesis was much higher than that by 30 min synthesis without annealing, showing that total heat-treatment time of 60 min is important for the SWNT growth. Results suggest that the conversion from the thicker film of Co to nano-particle which acts as catalyst takes place during the first 30 min.

Original languageEnglish
Pages (from-to)292-295
Number of pages4
JournalScience and Technology of Advanced Materials
Volume8
Issue number4
DOIs
Publication statusPublished - May 2007
Externally publishedYes

Fingerprint

Carbon Nanotubes
Chemical vapor deposition
Carbon nanotubes
Alcohols
Single-walled carbon nanotubes (SWCN)
Catalysts
Heat treatment
Annealing
Thick films
Film thickness
Enthalpy

Keywords

  • Alcohol catalytic CVD
  • Single-walled carbon nanotubes

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Synthesis-condition dependence of carbon nanotube growth by alcohol catalytic chemical vapor deposition method. / Inami, Nobuhito; Mohamed, Mohd Ambri; Shikoh, Eiji; Fujiwara, Akihiko.

In: Science and Technology of Advanced Materials, Vol. 8, No. 4, 05.2007, p. 292-295.

Research output: Contribution to journalArticle

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