About: Low-Temperature Synthesis of Mesoporous Titania-Silica Films with Pre-Formed Anatase Nanocrystals

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About: Low-Temperature Synthesis of Mesoporous Titania-Silica Films with Pre-Formed Anatase Nanocrystals Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Titania-silica composite films with a high content of crystalline titania phase and periodic mesoporous structure were fabricated by a low temperature %22brick and mortar%22 approach. Pre-formed titania nanocrystals were fused with surfactant-templated sol-gel silica, which acts as a structure-directing matrix and as a chemical glue. The nature of the surfactant plays the decisive role in the mesostructure formation. Using Pluronic P123 as the structure-directing agent, the structure formation of the mesoporous silica is greatly disturbed as a result of the presence of titania nanoparticles. On the contrary, the use of Pluronic F127, whose molecules are larger and whose poly(ethylene oxide) blocks are more hydrophilic, enables the preparation of composite titania-silica mesoporous architectures that can accommodate up to 50 wt % of nanocrystals and yet retain the periodicity of the porous structure. Titania-silica composite films with a high content of crystalline titania phase and periodic mesoporous structure were fabricated by a low temperature %22brick and mortar%22 approach. Pre-formed titania nanocrystals were fused with surfactant-templated sol-gel silica, which acts as a structure-directing matrix and as a chemical glue. The nature of the surfactant plays the decisive role in the mesostructure formation. Using Pluronic P123 as the structure-directing agent, the structure formation of the mesoporous silica is greatly disturbed as a result of the presence of titania nanoparticles. On the contrary, the use of Pluronic F127, whose molecules are larger and whose poly(ethylene oxide) blocks are more hydrophilic, enables the preparation of composite titania-silica mesoporous architectures that can accommodate up to 50 wt % of nanocrystals and yet retain the periodicity of the porous structure. (en)
Title	Low-Temperature Synthesis of Mesoporous Titania-Silica Films with Pre-Formed Anatase Nanocrystals Low-Temperature Synthesis of Mesoporous Titania-Silica Films with Pre-Formed Anatase Nanocrystals (en)
skos:prefLabel	Low-Temperature Synthesis of Mesoporous Titania-Silica Films with Pre-Formed Anatase Nanocrystals Low-Temperature Synthesis of Mesoporous Titania-Silica Films with Pre-Formed Anatase Nanocrystals (en)
skos:notation	RIV/61388955:_____/09:00331615!RIV10-AV0-61388955
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA104/08/0435), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	12
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Rathouský, Jiří Kalousek, Vít
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 fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	324213
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/09:00331615
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	supported TiO2 catalysis; metal-oxide nanoparticles; sol-gel process (en)
http://linked.open.../riv/klicoveSlovo	sol-gel process metal-oxide nanoparticles supported TiO2 catalysis
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[688E68D5A579]
http://linked.open...i/riv/nazevZdroje	Chemistry of Materials
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	%22Inteligentně strukturované%22 mesoporézní vrstvy TiO2 s antibakteriálními a řízeně proměnnými smáčecími vlastnostmi
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	21
http://linked.open...iv/tvurceVysledku	Kalousek, Vít Rathouský, Jiří Yu, Q. Bein, T. Szeifert, J. M. Fattakhova Rohlfing, D.
http://linked.open...ain/vavai/riv/wos	000267049200011
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	0897-4756
number of pages	8 (xsd:int)

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