High-yield synthesis of brookite TiO 2 nanoparticles

Details High-yield synthesis of brookite TiO 2 nanoparticles High-yield synthesis of brookite TiO 2 nanoparticles

2011-05-17

2011-05-17

Langel, Wayne (Department: 1736)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

Reexamination Certificate

active

07943116

ABSTRACT:
A method for forming non-agglomerated brookite TiO2nanoparticles 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.

REFERENCES:
patent: 2005/0063898 (2005-03-01), Ja Chisholm
patent: 2005/0123471 (2005-06-01), Nakano et al.
patent: 2006/0239902 (2006-10-01), Kimura et al.
patent: 2010/0055028 (2010-03-01), Scott et al.
patent: 2001246247 (2001-09-01), None
Park et al. “Effect of Catalyst and Solvent on PbTiO3 Fibers Prepared from Triethanolamine complexed Titanium Isopropoxide”, 1999, Journal of Sol-Gel Science and Technology, vol. 14, 149-162.
Mizojiri et al. “Generation of a Silylethylene-Titanium Alkoxide Comples. A Versatile Reagent for Silylethylation and Silylethylidenation of Unsaturated Compounds” Sep. 2000, J.Org.Chem. vol. 65, 6217-6222.
Aruna et al. “Nanosize rutile titania particle synthersis via a hydrothermal method without mineralizers”, Aug. 2000, Journal of Materials Chemistry, vol. 10, 2388-2391.
Nataliya Ya. Turova et al, “The Chemistry of Metal Alkoxides”, Chapter 9, pp. 107-111; 115-122.
Jing Tang, et al, “An Organometallic Synthesis of TiO2 Nanoparticles”, Nano Letters, 2005, vol. 5, No. 3 pp. 543-548.
Zheng Yanquing et al, “Hydrothermal preparation and characterization of brookite-type TiO2 nanocrystallites”, Journal of Materials Science Letters, vol. 19, 2000, pp. 1445-1448.
Xisheng Ye et al, “Thermoanalytical characteristic of nanocrystalline brookite-based titanium dioxide”, NanoStructured Materials, vol. 8, No. 7, 1977, pp. 919-927.

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