Synthesis of multiwalled carbon nanotubes using C14H 10O7W catalyst

Yoon Huh, Jeong Yong Lee, Sang Kyu Choi, Cheol Jin Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

High-purity carbon nanotubes were synthesized using a novel catalyst: tungsten-containing complex (C14 H10 O7 W). The carbon nanotubes have a multiwalled structure that is hollow on the inside and a clean surface without carbonaceous particles. The carbon nanotubes have average diameters in the range of 20-60 nm and lengths of 30 μm. Transmission electron microscopy analysis reveals that the inner graphite sheets of these nanotubes are highly crystallized, but the outer graphite sheets are defective. The microstructures of the carbon nanotubes produced from C14 H10 O7 W, tungsten hexacarbonyl [W (CO)6], and iron pentacarbonyl [Fe (CO)5] were analyzed using high-resolution transmission electron microscopy. We demonstrate that the tungsten-based catalyst can effectively be used to produce the carbon nanotubes.

Original languageEnglish
Pages (from-to)458-462
Number of pages5
JournalJournal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Volume23
Issue number2
DOIs
Publication statusPublished - 2005 Dec 1
Externally publishedYes

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Multiwalled carbon nanotubes (MWCN)
Carbon nanotubes
carbon nanotubes
catalysts
Catalysts
Tungsten
synthesis
tungsten
Graphite
graphite
transmission electron microscopy
High resolution transmission electron microscopy
Nanotubes
hollow
nanotubes
purity
Iron
Transmission electron microscopy
iron
microstructure

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Surfaces and Interfaces
  • Physics and Astronomy (miscellaneous)

Cite this

Synthesis of multiwalled carbon nanotubes using C14H 10O7W catalyst. / Huh, Yoon; Lee, Jeong Yong; Choi, Sang Kyu; Lee, Cheol Jin.

In: Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, Vol. 23, No. 2, 01.12.2005, p. 458-462.

Research output: Contribution to journalArticle

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