In situ nucleation of carbon nanotubes by the injection of carbon atoms into metal particles

Julio A. Rodríguez-Manzo, Mauricio Terrones Maldonado, Humberto Terrones, Harold W. Kroto, Litao Sun, Florian Banhart

Research output: Contribution to journalArticle

174 Citations (Scopus)

Abstract

The synthesis of carbon nanotubes (CNTs) of desired chiralities and diameters is one of the most important challenges in nanotube science and achieving such selectivity may require a detailed understanding of their growth mechanism. We report the formation of CNTs in an entirely condensed phase process that allows us, for the first time, to monitor the nucleation of a nanotube on the spherical surface of a metal particle. When multiwalled CNTs containing metal particle cores are irradiated with an electron beam, carbon from graphitic shells surrounding the metal particles is ingested into the body of the particle and subsequently emerges as single-walled nanotubes (SWNTs) or multiwalled nanotubes (MWNTs) inside the host nanotubes. These observations, at atomic resolution in an electron microscope, show that there is direct bonding between the tubes and the metal surface from which the tubes sprout and can be readily explained by bulk diffusion of carbon through the body of catalytic particles, with no evidence of surface diffusion.

Original languageEnglish (US)
Pages (from-to)307-311
Number of pages5
JournalNature Nanotechnology
Volume2
Issue number5
DOIs
StatePublished - Jan 1 2007

Fingerprint

Carbon Nanotubes
metal particles
Nanotubes
Carbon nanotubes
nanotubes
Nucleation
Carbon
Metals
carbon nanotubes
nucleation
injection
Atoms
carbon
atoms
tubes
Surface diffusion
Multiwalled carbon nanotubes (MWCN)
Chirality
surface diffusion
chirality

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Rodríguez-Manzo, Julio A. ; Terrones Maldonado, Mauricio ; Terrones, Humberto ; Kroto, Harold W. ; Sun, Litao ; Banhart, Florian. / In situ nucleation of carbon nanotubes by the injection of carbon atoms into metal particles. In: Nature Nanotechnology. 2007 ; Vol. 2, No. 5. pp. 307-311.
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In situ nucleation of carbon nanotubes by the injection of carbon atoms into metal particles. / Rodríguez-Manzo, Julio A.; Terrones Maldonado, Mauricio; Terrones, Humberto; Kroto, Harold W.; Sun, Litao; Banhart, Florian.

In: Nature Nanotechnology, Vol. 2, No. 5, 01.01.2007, p. 307-311.

Research output: Contribution to journalArticle

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