CNT growth on alumina supported nickel catalyst by thermal CVD

Th. Dikonimos Makris, L. Giorgi, R. Giorgi, N. Lisi, E. Salernitano

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Abstract

Carbon nanotubes (CNT) were grown on alumina supported nickel catalyst by thermal Chemical Vapour Deposition (CVD), using H2 and CH4 as gas precursors. Commercial Al2O3 pellets with various Ni concentrations, normally used for methane reforming, have been used as catalysts in order to produce massive quantities of CNT. Different growth parameters, such as temperature, time process, total pressure and methane concentration, were investigated on 40% weighted Ni on Al2O 3 substrates and relationships with the total product amount were found. CNT with different characteristics were observed by varying growth parameters. These parameters were optimised in order to maximise the yield. CNT with high density and smooth walls were obtained. Morphological characterisation has been performed on grown CNT. © 2004 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)815 - 819
Number of pages5
JournalDiamond and Related Materials
Volume14
Issue number3-7
DOIs
Publication statusPublished - Mar 2005

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

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