On the role of catalyst, catalyst support and their interaction in synthesis of carbon nanotubes by CCVD

K. Hernadi, Z. Kónya, A. Siska, J. Kiss, A. Oszkó, J. B. Nagy, I. Kiricsi

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

The catalytic growth of carbon nanotubes was investigated from the point of view of reaction mechanism. A great variety of catalyst supports (silica gel, zeotype materials, alumina, etc.) with different pore diameter was tested in acetylene decomposition at 1000 K. Quality and existence of carbon deposit was followed by transmission electron microscopy and the state of catalyst was investigated by in situ X-ray photoelectron spectroscopy measurements. It was proved that only catalyst particles deposited on the external surfaces of porous support could take part in the catalytic carbon nanotube formation.

Original languageEnglish
Pages (from-to)536-541
Number of pages6
JournalMaterials Chemistry and Physics
Volume77
Issue number2
DOIs
Publication statusPublished - Jan 15 2003

Keywords

  • CCVD
  • Carbon nanotubes
  • Porous support

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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