Journal of Materials Science

, Volume 42, Issue 16, pp 6689–6695

Selective synthesis of brookite, anatase and rutile nanoparticles: thermolysis of TiCl4 in aqueous nitric acid

  • Sophie Cassaignon
  • Magali Koelsch
  • Jean-Pierre Jolivet
Article

DOI: 10.1007/s10853-007-1496-y

Cite this article as:
Cassaignon, S., Koelsch, M. & Jolivet, JP. J Mater Sci (2007) 42: 6689. doi:10.1007/s10853-007-1496-y

Abstract

The three polymorphs of titania (anatase, rutile and brookite) have been obtained as nanoparticles selectively and with well definite morphologies (platelets of brookite, rods of rutile) by thermohydrolysis of TiCl4 in concentrated aqueous nitric acid. The selectivity of the synthesis depends strongly on the acidity of the medium. The presence of concentrated nitrate ions seems to be the determining factor for the formation of brookite and its stabilization against recrystallization.

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Sophie Cassaignon
    • 1
  • Magali Koelsch
    • 1
  • Jean-Pierre Jolivet
    • 1
  1. 1.Chimie de la Matière Condensée de ParisUniversité Pierre et Marie Curie-Paris6, CNRS UMR 7574ParisFrance

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