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Nucleation and aligned growth of multi-wall carbon nanotube films during thermal CVD

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)2065-2071
Number of pages7
JournalCarbon
Volume45
Issue number10
DOIs
Publication statusPublished - Sep 2007

Abstract

The development during early growth of a multi-wall carbon nanotube film by thermal CVD with acetylene (C2H2) and hydrogen at 750 degrees C has been characterized in detail by cross-section transmission electron microscopy. The studies provide information on the nanotube growth mechanisms and the complex catalyst transformations that are essential for the onset of different growth stages. An initial random growth catalysed by supported particles is followed by aerosol growth of aligned tubes. This results in a two-layered film structure, where a film of aligned nanotubes is lifting up an initially formed nanotube network from the substrate. (c) 2007 Elsevier Ltd. All rights reserved.

    Research areas

  • CHEMICAL-VAPOR-DEPOSITION, SUPPORTED CATALYST PARTICLES, CARBURIZATION, IRON, NI, CNT

ID: 1508840