Role of Subcritical Drying in Preparation of Crystalline Metal Oxides Aerogels

0364525 - ÚCHP 2012 BG eng C - Konferenční příspěvek (zahraniční konf.)
Matějová, Lenka - Matěj, Z. - Fajgar, Radek - Šolcová, Olga
Role of Subcritical Drying in Preparation of Crystalline Metal Oxides Aerogels.
Book of Abstracts. Sofia: -, 2011 - (Petrova, G.P., G.), s. 72. ISSN 1314-4375.
[International Symposium Advanced Micro- and Mesoporous Materials /4./. Riviera Resort (BG), 06.09.2011-09.09.2011]
Grant CEP: GA ČR GP104/09/P290; GA AV ČR KAN400720701
Výzkumný záměr: CEZ:AV0Z40720504
Klíčová slova: aerogel * metal oxide * extraction
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
http://arl-repository.lib.cas.cz/nusl/UCHP-M/cav_un_epca-0364525_01.pdf

In this study the subcritical drying technique allowing the direct crystallization of metal oxide aerogels – namely titania, zirconia, titania-zirconia mixtures and titania-ceria mixtures - during drying has been developed. Moreover, the drying conditions for each metal oxide or metal oxide mixtures were optimized in a broad range of temperatures, pressures and flow rates of extraction solvents with the aim to tune textural properties, porosity, structural properties and purity of final aerogels. For preparation of gels from which aerogels are derived the sol-gel process controlled in reverse micellar domains was used.
Trvalý link: http://hdl.handle.net/11104/0199992