Original title: Super/Subcritical Fluid Extractions for Synthesis of Porous Metal Oxides
Authors: Matějová, Lenka ; Matěj, Z. ; Cajthaml, Tomáš ; Šolcová, Olga
Document type: Papers
Conference/Event: 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
Year: 2010
Language: eng
Abstract: 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.
Keywords: metal oxide; subcritic water extraction; supercritic fluid extraction
Project no.: CEZ:AV0Z40720504 (CEP), GP104/09/P290 (CEP), IAA400720701 (CEP)
Funding provider: GA ČR, GA AV ČR
Host item entry: Summaries 2, ISBN 978-80-02-02247-3
Note: Související webová stránka: www.chisa.cz/2010, www.ecce7.com

Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0188107

Permalink: http://www.nusl.cz/ntk/nusl-41678


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