Preparation of iron/graphite core–shell structured nanoparticles

The paper presents a magnetic and morphological characterization of iron- and iron-carbide-based nanopowder obtained by the laser synthesis from a sensitized gas phase mixture containing acetylene and iron pentacarbonyl vapor. The analysis was performed on the as-prepared material and the annealed m...

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Bibliographic Details
Published in:Journal of alloys and compounds 2004-09, Vol.378 (1), p.112-116
Main Authors: David, B., Pizúrová, N., Schneeweiss, O., Bezdička, P., Morjan, I., Alexandrescu, R.
Format: Article
Language:English
Subjects:
Chemical synthesis methods
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Laser-induced pyrolysis
Magnetic measurements
Magnetic properties and materials
Magnetic properties of nanostructures
Magnetic resonances and relaxations in condensed matter, mössbauer effect
Materials science
Methods of nanofabrication
Mossbauer effect
other γ-ray spectroscopy
Mössbauer effect
other γ-ray spectroscopy
Mössbauer spectroscopy
Nanoparticles
Physics
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Summary:The paper presents a magnetic and morphological characterization of iron- and iron-carbide-based nanopowder obtained by the laser synthesis from a sensitized gas phase mixture containing acetylene and iron pentacarbonyl vapor. The analysis was performed on the as-prepared material and the annealed material. We report here the results of TEM, XRD, Mössbauer and magnetic measurements. Phase transformations taking place during annealing when core–shell-like nanostructures appear are discussed.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2003.10.088