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Reduced carbon solubility in Fe nanoclusters and implications for the growth of single-walled carbon nanotubes.

Publication ,  Journal Article
Harutyunyan, AR; Awasthi, N; Jiang, A; Setyawan, W; Mora, E; Tokune, T; Bolton, K; Curtarolo, S
Published in: Physical review letters
May 2008

Fe nanoclusters are becoming the standard catalysts for growing single-walled carbon nanotubes via chemical vapor decomposition. Contrary to the Gibbs-Thompson model, we find that the reduction of the catalyst size requires an increase of the minimum temperature necessary for the growth. We address this phenomenon in terms of solubility of C in Fe nanoclusters and, by using first-principles calculations, we devise a simple model to predict the behavior of the phases competing for stability in Fe-C nanoclusters at low temperature. We show that, as a function of particle size, there are three scenarios compatible with steady state growth, limited growth, and no growth of single-walled carbon nanotubes, corresponding to unaffected, reduced, and no solubility of C in the particles.

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Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

May 2008

Volume

100

Issue

19

Start / End Page

195502

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Harutyunyan, A. R., Awasthi, N., Jiang, A., Setyawan, W., Mora, E., Tokune, T., … Curtarolo, S. (2008). Reduced carbon solubility in Fe nanoclusters and implications for the growth of single-walled carbon nanotubes. Physical Review Letters, 100(19), 195502. https://doi.org/10.1103/physrevlett.100.195502
Harutyunyan, A. R., N. Awasthi, A. Jiang, W. Setyawan, E. Mora, T. Tokune, K. Bolton, and S. Curtarolo. “Reduced carbon solubility in Fe nanoclusters and implications for the growth of single-walled carbon nanotubes.Physical Review Letters 100, no. 19 (May 2008): 195502. https://doi.org/10.1103/physrevlett.100.195502.
Harutyunyan AR, Awasthi N, Jiang A, Setyawan W, Mora E, Tokune T, et al. Reduced carbon solubility in Fe nanoclusters and implications for the growth of single-walled carbon nanotubes. Physical review letters. 2008 May;100(19):195502.
Harutyunyan, A. R., et al. “Reduced carbon solubility in Fe nanoclusters and implications for the growth of single-walled carbon nanotubes.Physical Review Letters, vol. 100, no. 19, May 2008, p. 195502. Epmc, doi:10.1103/physrevlett.100.195502.
Harutyunyan AR, Awasthi N, Jiang A, Setyawan W, Mora E, Tokune T, Bolton K, Curtarolo S. Reduced carbon solubility in Fe nanoclusters and implications for the growth of single-walled carbon nanotubes. Physical review letters. 2008 May;100(19):195502.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

May 2008

Volume

100

Issue

19

Start / End Page

195502

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences