Sol-gel route to synthesis of microporous ceramic membranes: Preparation and characterization of microporous TiO[sub 2] and ZrO[sub 2] xerogels

Journal Article · Fri Jul 01 00:00:00 EDT 1994 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1994.tb07074.x· OSTI ID:7155028

Xu, Q; Anderson, M A ^[1]

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1. Univ. of Wisconsin, Madison, WI (United States). Water Chemistry Program

This paper focuses on the preparation and characterization of pure TiO[sub 2] and ZrO[sub 2] xerogels. The preparation method is based on a sol-gel technique using metal tert-amyloxides as precursors to produce nano-sized metal oxide particles which are subsequently packed in a gelation process, eventually resulting in microporous xerogels. The unsupported TiO[sub 2]and ZrO[sub 2] xerogels produced in this manner have a mean pore diameter less than 2 nm and more than 50% microporosity. However, these gels, in their pure form, are thermally stable only to 350 C. Improved thermal stabilities of mixed metal oxide xerogels will be reported elsewhere.

• OSTI ID: 7155028
• Journal Information: Journal of the American Ceramic Society; (United States), Vol. 77:7; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TITANIUM OXIDES
POROSITY
SOL-GEL PROCESS
ZIRCONIUM OXIDES
CATALYSTS
POROUS MATERIALS
USES
CHALCOGENIDES
MATERIALS
OXIDES
OXYGEN COMPOUNDS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360204 - Ceramics
Cermets
& Refractories- Physical Properties