About: The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Mesoporous ceria nanoparticles have, for the first time, been synthesized from cerium isopropoxide as precursor in a sol gel type process by controlled hydrolysis using reverse micelles. Water-filled reverse micelles have been facilitated by adding a non-ionic surfactant (TX-100) to an hydrophobic solvent (cyclohexane) above the critical micelle concentration. Parallel calcination studies under nitrogen or argon show similar data to each other emphasising the importance of oxygen in the removal of carbonaceous material from the gels. Thus, in the absence of atmospheric O2, oxygen is instead removed from the fluorite ceria phase which is believed to result in the formation of non-stoichiometric CeO(2-x). This causes loss of crystallisation of the fluorite CeO2 phase producing glassy material rather than nanoparticles and prevents porosity developing. Mesoporous ceria nanoparticles have, for the first time, been synthesized from cerium isopropoxide as precursor in a sol gel type process by controlled hydrolysis using reverse micelles. Water-filled reverse micelles have been facilitated by adding a non-ionic surfactant (TX-100) to an hydrophobic solvent (cyclohexane) above the critical micelle concentration. Parallel calcination studies under nitrogen or argon show similar data to each other emphasising the importance of oxygen in the removal of carbonaceous material from the gels. Thus, in the absence of atmospheric O2, oxygen is instead removed from the fluorite ceria phase which is believed to result in the formation of non-stoichiometric CeO(2-x). This causes loss of crystallisation of the fluorite CeO2 phase producing glassy material rather than nanoparticles and prevents porosity developing. (en)
Title	The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques (en)
skos:prefLabel	The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques (en)
skos:notation	RIV/67985858:_____/09:00335776!RIV10-AV0-67985858
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z40720504)
http://linked.open...iv/cisloPeriodika	21
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Klusoň, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav chemických procesů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	336765
http://linked.open...ai/riv/idVysledku	RIV/67985858:_____/09:00335776
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ceria; reverse micelles; alkoxide (en)
http://linked.open.../riv/klicoveSlovo	ceria reverse micelles alkoxide
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[AB2B6B0E9E6D]
http://linked.open...i/riv/nazevZdroje	Journal of Materials Chemistry
http://linked.open...in/vavai/riv/obor	CC
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	19
http://linked.open...iv/tvurceVysledku	Klusoň, Petr Holliman, P. Kalaji, M. Mason, S.
http://linked.open...ain/vavai/riv/wos	000266269300026
http://linked.open...n/vavai/riv/zamer	Investigation of multiphase reacting systems for the design of processes important in synthesis and preparation of novel materials, in energy production and in environmental protection
issn	0959-9428
number of pages	6 (xsd:int)
is http://linked.open...avai/riv/vysledek of	The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques

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