Název:
Super/Subcritical Fluid Extractions for Synthesis of Porous Metal Oxides
Autoři:
Matějová, Lenka ; Matěj, Z. ; Cajthaml, Tomáš ; Šolcová, Olga Typ dokumentu: Příspěvky z konference Konference/Akce: International Congress of Chemical and Process Engineering CHISA 2010 and 7th European Congress of Chemical Engineering ECCE-7 /19./, Prague (CZ), 2010-08-28 / 2010-09-01
Rok:
2010
Jazyk:
eng
Abstrakt: In this study the influence of individual post-treatment steps on the crystallinity, purity and textural properties of prepared metal oxides - TiO2, ZrO2, TiO2-ZrO2 etc. in powdery form (aerogels) – has been studied. Titania and zirconia organogels were prepared as reaction semi-products of the sol-gel process controlled in reverse micellar solution of nonionic surfactant Triton X-114. in combination with a) subcritical fluid extractions (using water and subsequently methanol like pressurized solvents, SubWE/PFE) and b) calcination. The effect of various extraction conditions on textural and structural properties of metal oxides has been investigated. Besides that the reproducibility of these material properties has been also observed.
Klíčová slova:
metal oxide; subcritic water extraction; supercritic fluid extraction Číslo projektu: CEZ:AV0Z40720504 (CEP), GP104/09/P290 (CEP), IAA400720701 (CEP) Poskytovatel projektu: GA ČR, GA AV ČR Zdrojový dokument: Summaries 2, ISBN 978-80-02-02247-3 Poznámka: Související webová stránka: www.chisa.cz/2010, www.ecce7.com
Instituce: Ústav chemických procesů AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0188107