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Title: Sol-gel processing with inorganic metal salt precursors

Patent ·
OSTI ID:1175086

Methods for sol-gel processing that generally involve mixing together an inorganic metal salt, water, and a water miscible alcohol or other organic solvent, at room temperature with a macromolecular dispersant material, such as hydroxypropyl cellulose (HPC) added. The resulting homogenous solution is incubated at a desired temperature and time to result in a desired product. The methods enable production of high quality sols and gels at lower temperatures than standard methods. The methods enable production of nanosize sols from inorganic metal salts. The methods offer sol-gel processing from inorganic metal salts.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-96OR22464
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
6,806,295
Application Number:
09/397,814
OSTI ID:
1175086
Country of Publication:
United States
Language:
English

References (9)

Nucleation and Growth of Uniform m-ZRO 2 journal January 1986
Nucleation and Growth for Synthesis of Nanometric Zirconia Particles by Forced Hydrolysis journal February 1998
The Precipitation of Monodispersed α-Iron(III) Oxide Particles from Iron(III) Chloride–Glycine System in Aqueous and 2-Propanol/Water Media journal November 1986
Preparation of the Precursor of the Zirconium Oxide in EDTA−Ammonia Solution by the Sol−Gel Method journal June 1997
Small-angle x-ray scattering studies of early-stage colloid formation by thermohydrolytic polymerization of aqueous zirconyl salt solutions journal January 1999
Effect of Solvent on Titania Particle Formation and Morphology in Thermal Hydrolysis of TiCl 4 journal March 1997
The sol-gel process journal January 1990
The Sol-Gel Route to Advanced Materials journal March 1994
Preparation of Monodisperse and Spherical Zirconia Powders by Heating of Alcohol-Aqueous Salt Solutions journal October 1995

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY