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Synthesis of Nanocrystalline Fe-based Particles by CO2 Laser Pyrolysis

Published online by Cambridge University Press:  25 February 2011

Xiang-Xin Bi  and
Peter C. Eklund
Xiang-Xin Bi
Affiliation:
Center for Applied Energy Research, Department of Physics and Astronomy, University of Kentucky, Lexington, KY40511-8433, USA
Peter C. Eklund
Affiliation:
Center for Applied Energy Research, Department of Physics and Astronomy, University of Kentucky, Lexington, KY40511-8433, USA Department of Physics and Astronomy, University of Kentucky, Lexington, KY40511-8433, USA
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Abstract

Nanocrystalline Fe (α and γ phases), Fe-carbide (Fe3C, Fe7C3 ), Fe-sulfide (Fel-xS), Fe-nitride (Fe3N and Fe4N) particles with narrow size distributions have been produced using a CO2 laser pyrolysis of vapor mixtures of Fe(CO)5 with C2H4, H2S or NH3. Typical production rates of ∼ 1 - 3 g/hr were observed. The chemical phase and size of these nanoscale particles can be controlled by reaction parameters such as laser intensity and gas composition. Pyrolytic carbon coatings were found to be present on the Fe-carbide particles, but absent in the Fe-sulfide and -nitride particles.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 286: Symposium J – Nanophase and Nanocomposite Materials , 1992 , 161
Copyright
Copyright © Materials Research Society 1993

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References

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