Physico-chemical properties of supported and unsupported. gamma. -Al/sub 2/O/sub 3/ and TiO/sub 2/ ceramic membranes

Conference · Sat Oct 01 04:00:00 EDT 1988 · Sep. Sci. Technol.; (United States)

OSTI ID:6190015

Gieselmann, M J; Anderson, M A; Moosemiller, M D; Hill, Jr, C G

Supported and unsupported ..gamma..-Al/sub 2/O/sub 3/ and TiO/sub 2/ ceramic membranes have been prepared by sol-gel techniques from alkoxide precursors. Several physico-chemical properties of these materials have been determined. N/sub 2/ sorption analysis has been used to determined pore size distributions and mean pore sizes. Particle sizes of sols as measured by in situ quasi-elastic light scattering are discussed in the light of SEM analyses of the sintered membranes prepared from these sols. Crack-free unsupported monoliths of Al/sub 2/O/sub 3/ with thicknesses up to 100 ..mu..m have been prepared. Similarly, supported Al/sub 2/O/sub 3/ and TiO/sub 2/ membranes with thicknesses of 0.5 ..mu..m have been produced. Preliminary measurements of the permselectivities of supported mechanisms have also been made.

• Research Organization: Univ. of Wisconsin, Madison (USA)
• OSTI ID: 6190015
• Report Number(s): CONF-871038-
• Conference Information: Journal Name: Sep. Sci. Technol.; (United States) Journal Volume: 23:12,13
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CERAMICS
CHALCOGENIDES
CHEMICAL PROPERTIES
DATA
EXPERIMENTAL DATA
INFORMATION
MEMBRANES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PHYSICAL PROPERTIES
SEPARATION PROCESSES
SIZE
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS