Carbon nanotube growth on conductors

Influence of the support structure and catalyst thickness

S. Esconjauregui, S. Bhardwaj, J. Yang, C. Castellarin-Cudia, R. Xie, L. D'Arsié, T. Makaryan, Hisashi Sugime, S. E. Fernandez, C. Cepek, J. Robertson

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We investigate the formation and stability of Fe nanoparticles on TiN and poly-crystalline PtSi films, and their ability to grow carbon nanotubes forests. Using different-microstructure films, coated with or without their native oxides, we show that, upon purely-thermal catalyst pretreatment, PtSi favours the formation of homogenously sized nanoparticles and forest growth, partly due to its low surface energy. TiN, in contrast, leads to much less controllable processes and only when coated with its native oxide, or with thick catalyst films, yields large diameter nanotube forests. The microstructure of the material can dramatically limit catalyst diffusion into the bulk of the support during nanotube growth. These results allow us to establish the general behaviour expected for nanotube growth on any conductive materials.

Original languageEnglish
Pages (from-to)13-24
Number of pages12
JournalCarbon
Volume73
DOIs
Publication statusPublished - 2014
Externally publishedYes

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Carbon Nanotubes
Catalyst supports
Nanotubes
Carbon nanotubes
Oxides
Catalysts
Nanoparticles
Conductive materials
Microstructure
Interfacial energy
Crystalline materials

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Esconjauregui, S., Bhardwaj, S., Yang, J., Castellarin-Cudia, C., Xie, R., D'Arsié, L., ... Robertson, J. (2014). Carbon nanotube growth on conductors: Influence of the support structure and catalyst thickness. Carbon, 73, 13-24. https://doi.org/10.1016/j.carbon.2014.02.026

Carbon nanotube growth on conductors : Influence of the support structure and catalyst thickness. / Esconjauregui, S.; Bhardwaj, S.; Yang, J.; Castellarin-Cudia, C.; Xie, R.; D'Arsié, L.; Makaryan, T.; Sugime, Hisashi; Fernandez, S. E.; Cepek, C.; Robertson, J.

In: Carbon, Vol. 73, 2014, p. 13-24.

Research output: Contribution to journalArticle

Esconjauregui, S, Bhardwaj, S, Yang, J, Castellarin-Cudia, C, Xie, R, D'Arsié, L, Makaryan, T, Sugime, H, Fernandez, SE, Cepek, C & Robertson, J 2014, 'Carbon nanotube growth on conductors: Influence of the support structure and catalyst thickness', Carbon, vol. 73, pp. 13-24. https://doi.org/10.1016/j.carbon.2014.02.026
Esconjauregui S, Bhardwaj S, Yang J, Castellarin-Cudia C, Xie R, D'Arsié L et al. Carbon nanotube growth on conductors: Influence of the support structure and catalyst thickness. Carbon. 2014;73:13-24. https://doi.org/10.1016/j.carbon.2014.02.026
Esconjauregui, S. ; Bhardwaj, S. ; Yang, J. ; Castellarin-Cudia, C. ; Xie, R. ; D'Arsié, L. ; Makaryan, T. ; Sugime, Hisashi ; Fernandez, S. E. ; Cepek, C. ; Robertson, J. / Carbon nanotube growth on conductors : Influence of the support structure and catalyst thickness. In: Carbon. 2014 ; Vol. 73. pp. 13-24.
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