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, H. Sugime, S. E. Fernandez, C. Cepek, J. Robertson

*この研究の対応する著者

研究成果: Article査読

15 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)13-24
ページ数12
ジャーナルCarbon
73
DOI
出版ステータスPublished - 2014 7月
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)

フィンガープリント

「Carbon nanotube growth on conductors: Influence of the support structure and catalyst thickness」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル