Jump to main content
Jump to site search

Issue 14, 2018
Previous Article Next Article

Growth modes and chiral selectivity of single-walled carbon nanotubes

Author affiliations

Abstract

Chemical vapor deposition synthesis of single-walled carbon nanotubes, using an Fe catalyst, and alternating methane and carbon monoxide as carbon feedstocks, leads to the reversible formation of junctions between tubes of different diameters. Combined with an atomistic modeling of the tube/catalyst interface, this shows that the ratio of diameters of the tube and its seeding particle, denoting the growth mode, depends on the carbon fraction inside the catalyst. With carbon monoxide, nanoparticles are strongly carbon enriched, and tend to dewet the tube, in a perpendicular growth mode. Cross-checking our results with the available reports from the literature of the last decade strongly suggests that these latter conditions should favor the near armchair chiral selectivity observed empirically.

Graphical abstract: Growth modes and chiral selectivity of single-walled carbon nanotubes

Back to tab navigation

Supplementary files

Publication details

The article was received on 22 Dec 2017, accepted on 28 Feb 2018 and first published on 01 Mar 2018


Article type: Paper
DOI: 10.1039/C7NR09539B
Citation: Nanoscale, 2018,10, 6744-6750
  •   Request permissions

    Growth modes and chiral selectivity of single-walled carbon nanotubes

    M. He, Y. Magnin, H. Jiang, H. Amara, E. I. Kauppinen, A. Loiseau and C. Bichara, Nanoscale, 2018, 10, 6744
    DOI: 10.1039/C7NR09539B

Search articles by author

Spotlight

Advertisements