Selective synthesis of carbon nanotubes and multi-layer graphene by controlling catalyst thickness

Daiyu Kondo, Katsunori Yagi, Motonobu Sato, Mizuhisa Nihei, Yuji Awano, Shintaro Sato, Naoki Yokoyama

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Selective synthesis of carbon nanotubes (CNTs) and graphene was achieved by hot-filament chemical vapor deposition (CVD) using iron films as a catalyst at a temperature of 620 °C. The selective synthesis was performed in a very simple way, just by changing the catalyst thickness under the same CVD conditions. Only CNTs were obtained with Fe films of 5 nm and less, while multi-layer graphene was formed with the catalyst films of 20 nm and more. The thickness of multi-layer graphene can also be controlled by controlling the thickness of the catalyst further.

Original languageEnglish
Pages (from-to)294-300
Number of pages7
JournalChemical Physics Letters
Volume514
Issue number4-6
DOIs
Publication statusPublished - 2011 Oct 6

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Carbon Nanotubes
Graphite
graphene
carbon nanotubes
catalysts
Catalysts
synthesis
Chemical vapor deposition
vapor deposition
filaments
Iron
iron
Temperature
temperature

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

Selective synthesis of carbon nanotubes and multi-layer graphene by controlling catalyst thickness. / Kondo, Daiyu; Yagi, Katsunori; Sato, Motonobu; Nihei, Mizuhisa; Awano, Yuji; Sato, Shintaro; Yokoyama, Naoki.

In: Chemical Physics Letters, Vol. 514, No. 4-6, 06.10.2011, p. 294-300.

Research output: Contribution to journalArticle

Kondo, Daiyu ; Yagi, Katsunori ; Sato, Motonobu ; Nihei, Mizuhisa ; Awano, Yuji ; Sato, Shintaro ; Yokoyama, Naoki. / Selective synthesis of carbon nanotubes and multi-layer graphene by controlling catalyst thickness. In: Chemical Physics Letters. 2011 ; Vol. 514, No. 4-6. pp. 294-300.
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