A Novel Approach to Synthesis of FePt Magnetic Nanoparticles

نویسندگان

  • Kevin E. Elkins
  • Girija S. Chaubey
  • Vikas Nandwana
  • J. Ping Liu
چکیده

Chemical reduction of ferric acetylacetonate (Fe(acac)3) and platinum acetylacetonate (Pt(acac)2) using polyol as a reducing agent as well as an effective surfactant, has successfully yielded monodisperse FePt nanoparticles with a size of approximately 2 nm. When annealed samples were compared to FePt nanoparticles synthesized using oleic acid and oleylamine as the surfactants under identical conditions, nearly 30% increase in coercivity (Hc) was achieved with the new, simple and economic method.

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تاریخ انتشار 2007