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The diffusion of carbon atoms inside carbon nanotubes

Gan, Yanjie ; Kotakoski, J. ; Krasheninnikov, A. V. ; Nordlund, K. ; Banhart, F. (2024)
The diffusion of carbon atoms inside carbon nanotubes.
In: New Journal of Physics, 2008, 10 (2)
doi: 10.26083/tuprints-00020541
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: The diffusion of carbon atoms inside carbon nanotubes
Language: English
Date: 5 March 2024
Place of Publication: Darmstadt
Year of primary publication: 15 February 2008
Place of primary publication: London
Publisher: IOP Publishing
Journal or Publication Title: New Journal of Physics
Volume of the journal: 10
Issue Number: 2
Collation: 9 Seiten
DOI: 10.26083/tuprints-00020541
Corresponding Links:
Origin: Secondary publication DeepGreen

We combine electron irradiation experiments in a transmission electron microscope with kinetic Monte Carlo simulations to determine the mobility of interstitial carbon atoms in single-walled carbon nanotubes. We measure the irradiation dose necessary to cut nanotubes repeatedly with a focused electron beam as a function of the separation between the cuts and at different temperatures. As the cutting speed is related to the migration of displaced carbon atoms trapped inside the tube and to their recombination with vacancies, we obtain information about the mobility of the trapped atoms and estimate their migration barrier to be about 0.25 eV. This is an experimental confirmation of the remarkably high mobility of interstitial atoms inside carbon nanotubes, which shows that nanotubes have potential applications as pipelines for the transport of carbon atoms.

Identification Number: Artikel-ID: 023022
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-205416
Classification DDC: 500 Science and mathematics > 530 Physics
500 Science and mathematics > 540 Chemistry
Divisions: 11 Department of Materials and Earth Sciences > Material Science
Date Deposited: 05 Mar 2024 10:24
Last Modified: 27 May 2024 08:20
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20541
PPN: 518582221
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