Precise determination of the threshold diameter for a single-walled carbon nanotube to collapse

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Maoshuai He
  • Jichen Dong
  • Feng Ding
  • Hua Jiang
  • Annick Loiseau
  • Juha Lehtonen
  • Esko I. Kauppinen

Detail(s)

Original languageEnglish
Pages (from-to)9657-9663
Journal / PublicationACS Nano
Volume8
Issue number9
Online published19 Aug 2014
Publication statusPublished - 23 Sept 2014

Abstract

Closed-edged bilayer graphene nanoribbons were formed by the spontaneous collapse of large-diameter single-walled carbon nanotubes (SWNTs) grown on gold nanoparticles by chemical vapor deposition. Such bilayer graphene nanoribbons could adopt different stacking configurations, such as AB-stacking or stacking order with any rotation angle, correlated with the chiral angles of their parent rounded SWNTs. On the basis of the electron diffraction characterizations on a good number of collapsed and uncollapsed SWNTs, the threshold diameter for SWNTs to collapse was precisely determined to be 5.1 nm, independent of the chiral angle of the SWNTs. The determination is consistent with that calculated by both classical adaptive intermolecular reactive empirical bond order force field and density functional theory after having taken the stacking effect and thermal fluctuation into account.

Research Area(s)

  • chemical vapor deposition, closed-edged bilayer graphene nanoribbon, collapse, gold catalyst, large-diameter single-walled carbon nanotube

Citation Format(s)

Precise determination of the threshold diameter for a single-walled carbon nanotube to collapse. / He, Maoshuai; Dong, Jichen; Zhang, Kaili et al.
In: ACS Nano, Vol. 8, No. 9, 23.09.2014, p. 9657-9663.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review