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Title: Ceramic membranes having macroscopic channels

Methods have been developed to make porous ceramic membranes having macroscopic channels therethrough. The novel membranes are formed by temporarily supporting the sol-gel membrane precursor on an organic support which is ultimately removed from the interior of the membrane, preferably by pyrolysis or by chemical destruction. The organic support may also include an inorganic metal portion that remains on destruction of the organic portion, providing structural support and/or chemical reactivity to the membrane. The channels formed when the organic support is destroyed provide the ability to withdraw small catalytic products or size-separated molecules from the metal oxide membrane. In addition, the channel-containing membranes retain all of the advantages of existing porous ceramic membranes. 1 fig.
Inventors:
;
Issue Date:
OSTI Identifier:
372566
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (United States) PTO; SCA: 360201; 400105; PA: EDB-96:143775; SN: 96001644964
Patent Number(s):
US 5,552,351/A/
Application Number:
PAN: 8-413,314
Contract Number:
AS07-86ID12626; FG07-91ID13062
Resource Relation:
Other Information: PBD: 3 Sep 1996
Research Org:
University of Wisconsin
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 40 CHEMISTRY; MEMBRANES; FABRICATION; SOL-GEL PROCESS; PRECURSOR; SUPPORTS; DECOMPOSITION; PORE STRUCTURE; SEPARATION PROCESSES; CERAMICS