Journal of Nanoparticle Research

, Volume 11, Issue 5, pp 1247–1250

Hydrothermal synthesis of large maghemite nanoparticles: influence of the pH on the particle size

  • Olivier Horner
  • Sophie Neveu
  • Sophie de Montredon
  • Jean-Michel Siaugue
  • Valérie Cabuil
Brief Communication

DOI: 10.1007/s11051-008-9582-x

Cite this article as:
Horner, O., Neveu, S., de Montredon, S. et al. J Nanopart Res (2009) 11: 1247. doi:10.1007/s11051-008-9582-x

Abstract

Maghemite nanoparticles with sizes in the range 10–110 nm and good monodispersity have been synthesized by co precipitation at room temperature from Fe2+ and Fe3+ ions by a (N(CH3)4OH) solution, followed by an hydrothermal treatment at 200 °C and an oxidation step with Fe(NO3)3. The influence of the incubation time (at 200 °C) and of the pH of the autoclaved solution on the particles size has been studied. It was found that the pH value allows to tune the size of the maghemite particles.

Keywords

Maghemite nanoparticlesHydrothermal synthesisAutoclaveColloids

Supplementary material

Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Olivier Horner
    • 1
  • Sophie Neveu
    • 1
  • Sophie de Montredon
    • 1
  • Jean-Michel Siaugue
    • 1
  • Valérie Cabuil
    • 1
  1. 1.Laboratoire Colloïdes et Interfaces ChargésUMR CNRS, Université Pierre et Marie Curie, ESPCI 7612Paris Cedex 05France