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

Patent ·
OSTI ID:1018208

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.

Research Organization:
Sandia National Laboratories
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
7,943,116
Application Number:
12/018,828
OSTI ID:
1018208
Country of Publication:
United States
Language:
English

References (6)

Effects of Catalyst and Solvent on PbTiO3 Fibers Prepared from Triethanolamine Complexed Titanium Isopropoxide journal April 1999
Nanosize rutile titania particle synthesis via a hydrothermal method without mineralizers journal January 2000
Generation of a Silylethylene−Titanium Alkoxide Complex. A Versatile Reagent for Silylethylation and Silylethylidenation of Unsaturated Compounds journal September 2000
An Organometallic Synthesis of TiO 2 Nanoparticles journal March 2005
Thermoanalytical characteristic of nanocrystalline brookite-based titanium dioxide journal October 1997
Hydrothermal preparation and characterization of brookite-type TiO₂ nanocrystallites journal August 2000

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