About: Transformation of brookite-type TiO2 nanocrystals to rutile: correlation between microstructure and photoactivity

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Transformace brookituTiO2 nanokrystalů na rutil TiO2: korelce mezi mikrostrukturou a fotoaktivitou. (cs) Nanometric particles of pure brookite TiO2 were synthesized by modified thermolysis of reactant solutions containing titania powder, HCl, urea and PEG 10000. Unique flower-like brookite agglomerates with an average diameter of similar to 400-450 nm composed of single brookite nanocrystals of similar to 4-5 nm were obtained at 105 degrees C. The brookite -> rutile transformation has been studied and TiO2 mixtures with variable amount of anatase, brookite and rutile polymorphs at different temperatures (from 200 to 800 degrees C) were obtained. High resolution transmission electron microscopy (HRTEM), electron diffraction pattern and BET/BJH analyses were used to characterize the phase assemblages, crystallite size and pore volume of the pure-phase brookite and TiO2 mixtures. In order to understand the metastable-stable TiO2 phase transformation X-ray powder diffraction (XRD) was performed. Nanometric particles of pure brookite TiO2 were synthesized by modified thermolysis of reactant solutions containing titania powder, HCl, urea and PEG 10000. Unique flower-like brookite agglomerates with an average diameter of similar to 400-450 nm composed of single brookite nanocrystals of similar to 4-5 nm were obtained at 105 degrees C. The brookite -> rutile transformation has been studied and TiO2 mixtures with variable amount of anatase, brookite and rutile polymorphs at different temperatures (from 200 to 800 degrees C) were obtained. High resolution transmission electron microscopy (HRTEM), electron diffraction pattern and BET/BJH analyses were used to characterize the phase assemblages, crystallite size and pore volume of the pure-phase brookite and TiO2 mixtures. In order to understand the metastable-stable TiO2 phase transformation X-ray powder diffraction (XRD) was performed. (en)
Title	Transformation of brookite-type TiO2 nanocrystals to rutile: correlation between microstructure and photoactivity Transformace brookituTiO2 nanokrystalů na rutil TiO2: korelce mezi mikrostrukturou a fotoaktivitou (cs) Transformation of brookite-type TiO2 nanocrystals to rutile: correlation between microstructure and photoactivity (en)
skos:prefLabel	Transformation of brookite-type TiO2 nanocrystals to rutile: correlation between microstructure and photoactivity Transformace brookituTiO2 nanokrystalů na rutil TiO2: korelce mezi mikrostrukturou a fotoaktivitou (cs) Transformation of brookite-type TiO2 nanocrystals to rutile: correlation between microstructure and photoactivity (en)
skos:notation	RIV/61388980:_____/06:00050332!RIV07-GA0-61388980
http://linked.open.../vavai/riv/strany	1709;1716
http://linked.open...avai/riv/aktivita	P V Z
http://linked.open...avai/riv/aktivity	P(1M0577), P(GA104/04/0467), V, Z(AV0Z40320502), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	18
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Murafa, Nataliya Szatmary, Lorant Šubrt, Jan Bakardjieva, Snejana Štengl, Václav Lukáč, Jozef
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 anorganické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	504187
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/06:00050332
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	phase-transformation; amorphous titania; anatase (en)
http://linked.open.../riv/klicoveSlovo	anatase amorphous titania phase-transformation
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[86487A620574]
http://linked.open...i/riv/nazevZdroje	Journal of Materials Chemistry
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	10 (xsd:int)
http://linked.open...vavai/riv/projekt	Research centre for nanostructures engineering Characterization of doped photosensitive titania with optimised properties
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	16
http://linked.open...iv/tvurceVysledku	Jirkovský, Jaromír Murafa, Nataliya Nižňanský, D. Szatmary, Lorant Šubrt, Jan Bakardjieva, Snejana Štengl, Václav Lukáč, Jozef Čížek, K. Petrova, N.
http://linked.open...n/vavai/riv/zamer	Design, syntéza a charakterizace klastrů, kompozitů, komplexů a dalších sloučenin na bázi anorganických látek; mechanismy a kinetika jejich interakcí Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	0959-9428
number of pages	8 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Transformation of brookite-type TiO2 nanocrystals to rutile: correlation between microstructure and photoactivity Transformation of brookite-type TiO2 nanocrystals to rutile: correlation between microstructure and photoactivity

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