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Title: Method of making metal oxide ceramic membranes with small pore sizes

Patent ·
OSTI ID:868581

A method for the production of metal oxide ceramic membranes is composed of very small pore size. The process is particularly useful in the creation of titanium and other transition metal oxide membranes. The method utilizes a sol-gel process in which the rate of particle formation is controlled by substituting a relatively large alcohol in the metal alkoxide and by limiting the available water. Stable, transparent metal oxide ceramic membranes are created having a narrow distribution of pore size, with the pore diameter being manipulable in the range of 5 to 40 Angstroms.

DOE Contract Number:
AC07-86ID12626
Assignee:
Wisconsin Alumni Research Foundation (Madison, WI)
Patent Number(s):
US 5169576
OSTI ID:
868581
Country of Publication:
United States
Language:
English

References (6)

Photoelectrochemical Properties of TiO2 Films Prepared by the Sol-Gel Method journal January 1987
The preparation and characterization of alumina membranes with ultra-fine pores journal August 1985
Sol-gel processing of silica journal April 1986
Preparation of TiO2 fibres by hydrolysis and polycondensation of Ti(O—i-C3H7)4 journal April 1986
Preparation of glasses and ceramics from metal-organic compounds journal June 1977
Separation of alcohol/water gaseous mixtures by thin ceramic membrane. journal January 1986