Synthesis and textural properties of unsupported and supported rutile (TiO2) membranes

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Kumar, Krishnankutty-Nair P. and Keizer, Klaas and Burggraaf, Anthonie J. and Okubo, Tatsuya and Nagamoto, Hidetoshi (1993) Synthesis and textural properties of unsupported and supported rutile (TiO2) membranes. Journal of materials chemistry, 3 (9). pp. 923-929. ISSN 0959-9428

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Abstract:Two approaches were postulated for improving the stability of porous texture of titania membranes: (1) retarding the phase transformation and grain growth; (2) avoiding the phase transformation. Based on the second approach, rutile membranes were made directly from a rutile sol, prepared by the precipitation of titania on SnO2 nuclei. The rutile membranes were stable up to 800 °C, with a porosity of ca. 40%, whereas normal titania membranes (starting with anatase) show very little porosity above 600 °C. Alumina substitution retards grain growth and pore growth at 850 °C for unsupported as well as supported membranes.
Item Type:Article
Copyright:© 1992 Royal Society of Chemistry
Faculty:
Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/58233
Official URL:http://dx.doi.org/10.1039/JM9930300923
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