• DocumentCode
    1385895
  • Title

    Preparation of acicular α-Fe nanoparticles in tubular lecithin colloids

  • Author

    Cain, Jason L. ; Nikles, David E.

  • Author_Institution
    Dept. of Chem., Alabama Univ., Tuscaloosa, AL, USA
  • Volume
    32
  • Issue
    5
  • fYear
    1996
  • fDate
    9/1/1996 12:00:00 AM
  • Firstpage
    4490
  • Lastpage
    4492
  • Abstract
    Acicular α-Fe nanoparticles were prepared by borohydride reduction of Fe2+ in tubular lecithin reverse micellular solutions. Reduction of low concentration (0.025 or 0.05 M FeCl2 ) in the presence of a 1200 Oe magnetic field gave mostly spherical particles with about 20% acicular particles. The amount of acicular particles varied with reaction conditions. The acicular particles had lengths ranging from 100 to 600 nm and aspect ratios of at least 6:1
  • Keywords
    colloids; ferromagnetic materials; iron; magnetic fluids; magnetic particles; nanostructured materials; particle size; reduction (chemical); 100 to 600 nm; Fe; Fe2+; FeCl2; acicular α-Fe nanoparticles; acicular particles; aspect ratios; borohydride reduction; magnetic field; preparation; reaction conditions; spherical particles; tubular lecithin colloids; tubular lecithin reverse micellular solutions; Coercive force; Couplings; Ethanol; Iron; Magnetic fields; Magnetic hysteresis; Nanoparticles; Powders; Transmission electron microscopy; X-ray diffraction;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.538907
  • Filename
    538907