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Czechoslovak Journal of Physics

, Volume 54, Supplement 4, pp 85–88 | Cite as

Magnetic Properties of Iron/Graphite Core-shell Structured Nanoparticles Prepared by Annealing of Fe-C-N Nanocomposite

  • B. David
  • N. Pizúrová
  • O. Schneeweiss
  • P. Bezdička
  • R. Alexandrescu
  • I. Morjan
  • A. Crunteanu
  • I. Voicu
Article
  • 45 Downloads

Abstract

We are reporting the core-shell structured iron/graphite nanoparticles formed during annealing of a nanopowder prepared by laser pyrolysis of gas phase reactants. The originally synthesized Fe-C-N nanocomposite powder has been characterized by TEM, XRD and magnetic measurements. Nanopowder was heated up to 800 °C at ∼ 1 Pa vacuum. Presence of iron nanoparticles with mean diameter 40 nm in the annealed state of nanopowder was proved by XRD and TEM analyses. Mössbauer spectroscopy was used for characterization of synthesized/annealed nanopowder to confirm the qualitative change in phase composition.

Keywords

iron/graphite core-shell nanoparticles 

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Copyright information

© Institute of Physics, Academy of Sciences of Czech Republic 2004

Authors and Affiliations

  • B. David
    • 1
  • N. Pizúrová
    • 1
  • O. Schneeweiss
    • 1
  • P. Bezdička
    • 2
  • R. Alexandrescu
    • 3
  • I. Morjan
    • 3
  • A. Crunteanu
    • 3
  • I. Voicu
    • 3
  1. 1.Institute of Physics of Materials
  2. 2.Institute of Inorganic Chemistry
  3. 3.National Institute for Laser

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