Synthesis of CNTs/metal/Al2O3 nanocomposite powders by chemical vapor deposition

C. D. Park, H. J. Jeon, H. J. Wang, Y. H. Choa, S. T. Oh, K. M. Kang, S. G. Kang

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

Abstract

CNTs/metal/Al2O3 nanocomposite powders were fabricated by thermal chemical vapor deposition (CVD) of C2H 2 gas over metal/Al2O3 nanocomposite catalysts prepared by the selective reduction of oxide/Al2O3 powders. The yield and diameter of CNTs significantly depended on the kind of metal catalyst and catalyst size. X-ray diffraction (XRD) was used for phase identification. The morphology of CNTs was determined using field emission scanning electron microscopy (FESEM). FT-Raman spectroscopy revealed that the CNTs have single- and multi-walled carbon nanotubes structure. The relationship between the CNT yield/diameter and the characteristics of the composite catalyst was systematically investigated.

Original languageEnglish
Pages (from-to)797-800
Number of pages4
JournalMaterials Science Forum
Volume449-452
Issue numberII
StatePublished - 2004
EventDesigning, Processing and Properties of Advanced Engineering Materials: Proceedings on the 3rd International Symposium on Designing, Processing and Properties of Advanced Engineering Materials - Jeju Island, Korea, Republic of
Duration: 5 Nov 20038 Nov 2003

Keywords

  • Carbon nanotubes
  • Catalyst
  • Nanocomposites
  • Thermal CVD

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