Journal of Materials Science

, Volume 29, Issue 14, pp 3797–3801

Preparation of colloidal Fe3O4 ultrafine particles in microemulsions

Authors

  • L. Liz
    • Departments of Chemical Physics and Applied PhysicsUniversity of Santiago de Compostela
  • M. A. López Quintela
    • Departments of Chemical Physics and Applied PhysicsUniversity of Santiago de Compostela
  • J. Mira
    • Departments of Chemical Physics and Applied PhysicsUniversity of Santiago de Compostela
  • J. Rivas
    • Departments of Chemical Physics and Applied PhysicsUniversity of Santiago de Compostela
Article

DOI: 10.1007/BF00357351

Cite this article as:
Liz, L., López Quintela, M.A., Mira, J. et al. JOURNAL OF MATERIALS SCIENCE (1994) 29: 3797. doi:10.1007/BF00357351

Abstract

The preparation of magnetite particles is reported from the precipitation of Fe2+/Fe3+ with NH4OH in several kinds of microemulsions: AOT/n-heptane/water microemulsions and a new non-toxic microemulsion system whose phase behaviour and structure has been recently studied. It is shown that both the droplet size and the presence of interactions in the dispersed phase greatly influence the final size of the obtained particles. In addition, the size of the particles can be increased by successive repetition of the reaction inside the droplets of the microemulsion.

Copyright information

© Chapman & Hall 1994