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High-yield synthesis of brookite TiO.sub.2 nanoparticles

United States Patent

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May 17, 2011
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Low Cost TiO2 Nanoparticles
A method for forming non-agglomerated brookite TiO.sub.2 nanoparticles without the use of expensive organic surfactants or high temperature processing. Embodiments of this invention use titanium isopropoxide as the titanium precursor and isopropanol as both the solvent and ligand for ligand-stabilized brookite-phase titania. Isopropanol molecules serve as the ligands interacting with the titania surfaces that stabilize the titania nanoparticles. The isopropanol ligands can be exchanged with other alcohols and other ligands during or after the nanoparticle formation reaction.
Huber; Dale L. (Albuquerque, NM), Monson; Todd C. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
January 24, 2008
C01G 23/047 (20060101);
136/243-254 423/610,417
The United States Government has rights in this invention pursuant to Department of Energy Contract No. DE-AC04-94AL85000 with Sandia Corporation.