Control of carbon nanotube growth using cobalt nanoparticles as catalyst

Yoon Huh, Malcolm L.H. Green, Young Heon Kim, Jeong Yong Lee, Cheol Jin Lee

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

We have controllably grown carbon nanotubes using uniformly distributed cobalt nanoparticles as catalyst. Cobalt nanoparticles with a uniform size were synthesized by chemical reaction and colloidal solutions including the cobalt nanoparticles were prepared. The cobalt nanoparticles were uniformly distributed on silicon substrates by a spin-coating method. Carbon nanotubes with a uniform diameter were synthesized on the cobalt nanoparticles by thermal chemical vapor deposition of acetylene gas. The density and vertical alignment of carbon nanotubes could be controlled by adjusting the density of cobalt (Co) nanoparticles.

Original languageEnglish
Pages (from-to)145-150
Number of pages6
JournalApplied Surface Science
Volume249
Issue number1-4
DOIs
Publication statusPublished - 2005 Aug 15
Externally publishedYes

Bibliographical note

Funding Information:
The authors are grateful for Professor Malcolm L.H. Green's comments at Inorganic Chemistry Laboratory, University of Oxford, and for the supports provided by Grant No. R-11-2000-086-0000-0 from the Center of Excellency Program of the Korea Science and Engineering Foundation and Ministry of Science and Technology and by National R&D Project for Nano Science and Technology of MOST.

Keywords

  • Carbon nanotubes
  • Catalyst nanoparticles
  • Chemical vapor deposition
  • Growth control

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • General Physics and Astronomy
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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