Sol-gel route to synthesis of microporous ceramic membranes: Thermal stability of TiO[sub 2]-ZrO[sub 2] mixed oxides
- Univ. of Wisconsin, Madison, WI (United States). Water Chemistry Program
In this paper concerning the synthesis of microporous ceramic membranes, the authors focus on the preparation and thermal stability of unsupported microporous TiO[sub 2]-ZrO[sub 2] mixed-oxide membranes. It has been observed that, by adding up to 20% ZrO[sub 2] into TiO[sub 2] or up to 10% TiO[sub 2] into ZrO[sub 2], these microporous membranes display improved thermal stability. They can be fired up to 500 C for 0.5 h without closing micropores. However, membranes containing almost equal percentages of each component have lost microporous features and have low surface areas and low porosities. A phase diagram of a two-component TiO[sub 2]-ZrO[sub 2] mixed-oxide membrane has been prepared based on DTA and X-ray diffraction data in order to better understand the microstructure changes upon firing.
- OSTI ID:
- 5993916
- Journal Information:
- Journal of the American Ceramic Society; (United States), Vol. 76:8; ISSN 0002-7820
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
MEMBRANES
FABRICATION
TITANIUM OXIDES
MICROSTRUCTURE
SOL-GEL PROCESS
THERMODYNAMIC PROPERTIES
ZIRCONIUM OXIDES
BINARY MIXTURES
DIFFERENTIAL THERMAL ANALYSIS
EXPERIMENTAL DATA
PHASE DIAGRAMS
POROSITY
SYNTHESIS
X-RAY DIFFRACTION
CHALCOGENIDES
COHERENT SCATTERING
DATA
DIAGRAMS
DIFFRACTION
DISPERSIONS
INFORMATION
MIXTURES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
THERMAL ANALYSIS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies
360204 - Ceramics
Cermets
& Refractories- Physical Properties