Journal of Nanoparticle Research

, Volume 12, Issue 6, pp 2051–2056 | Cite as

Composition distributions in FePt(Au) nanoparticles

  • C. Srivastava
  • D. E. Nikles
  • J. W. Harrell
  • G. B. Thompson
Research Paper

Abstract

Ternary alloy FePt(Au) nanoparticles were prepared by the co-reduction of platinum(II) acetylacetonate and gold(III) acetate and the thermal decomposition of iron pentacarbonyl in hot phenyl ether in the presence of oleic acid and oleylamine ligands. This gave spherical particles with an average diameter of 4.4 nm with a range of diameters from approximately 1.6–9 nm. The as-synthesized particles had a solid solution, face-centered-cubic structure. Though the average composition of the particles was Fe44Pt45Au11, individual particle analysis by Scanning Transmission Electron Microscopy–X-ray Energy Dispersive Spectroscopy showed a broad distribution in composition. In general, smaller-sized particles tended to have a lower amount of Au as compared to larger-sized particles. As the Au content increased, the ratio of Fe/Pt widened.

Keywords

FePt Nanoparticles Compositional distributions Synthesis 

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • C. Srivastava
    • 1
  • D. E. Nikles
    • 2
  • J. W. Harrell
    • 3
  • G. B. Thompson
    • 1
  1. 1.Department of Metallurgical and Materials EngineeringThe University of AlabamaTuscaloosaUSA
  2. 2.Department of ChemistryThe University of AlabamaTuscaloosaUSA
  3. 3.Department of Physics and AstronomyThe University of AlabamaTuscaloosaUSA

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