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Statements

Subject Item
n2:RIV%2F61388980%3A_____%2F11%3A00364458%21RIV12-AV0-61388980
rdf:type
n15:Vysledek skos:Concept
dcterms:description
The growth of anatase particles during annealing up to 1000 degrees C of the dried precipitates prepared by neutralization of TiOSO(4) aqueous solutions with aqueous ammonia until desired pH value at temperatures 0-80 degrees C was studied. The crystallinity of the precipitates depends significantly on the precipitation temperature; the precipitates prepared at low temperatures were almost amorphous whereas the higher precipitation temperature leads to more crystalline samples. Heating the sample results in crystallization of the amorphous part and above similar to 400-500 degrees C the sample is fully crystalline. Contemporary with the crystallization of the amorphous part significant decrease of the crystal cell volume was observed in the same temperature region. Above this temperature monotonous changes in crystal lattice constants (growth of the a and decrease of the c parameter) resulting in decrease of the crystal cell size was observed. The growth of anatase particles during annealing up to 1000 degrees C of the dried precipitates prepared by neutralization of TiOSO(4) aqueous solutions with aqueous ammonia until desired pH value at temperatures 0-80 degrees C was studied. The crystallinity of the precipitates depends significantly on the precipitation temperature; the precipitates prepared at low temperatures were almost amorphous whereas the higher precipitation temperature leads to more crystalline samples. Heating the sample results in crystallization of the amorphous part and above similar to 400-500 degrees C the sample is fully crystalline. Contemporary with the crystallization of the amorphous part significant decrease of the crystal cell volume was observed in the same temperature region. Above this temperature monotonous changes in crystal lattice constants (growth of the a and decrease of the c parameter) resulting in decrease of the crystal cell size was observed.
dcterms:title
Anatase nanoparticles from hydrated titania gels Anatase nanoparticles from hydrated titania gels
skos:prefLabel
Anatase nanoparticles from hydrated titania gels Anatase nanoparticles from hydrated titania gels
skos:notation
RIV/61388980:_____/11:00364458!RIV12-AV0-61388980
n15:predkladatel
n20:ico%3A61388980
n3:aktivita
n11:P n11:Z
n3:aktivity
P(1M0577), Z(AV0Z40320502)
n3:cisloPeriodika
1
n3:dodaniDat
n17:2012
n3:domaciTvurceVysledku
n4:2382954 n4:1246364 n4:6881076 n4:7933665 n4:1698508 n4:9286918
n3:druhVysledku
n12:J
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
186220
n3:idVysledku
RIV/61388980:_____/11:00364458
n3:jazykVysledku
n19:eng
n3:klicovaSlova
anatase particles
n3:klicoveSlovo
n9:anatase%20particles
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[B67A74B564DD]
n3:nazevZdroje
Catalysis Today
n3:obor
n18:CA
n3:pocetDomacichTvurcuVysledku
6
n3:pocetTvurcuVysledku
6
n3:projekt
n5:1M0577
n3:rokUplatneniVysledku
n17:2011
n3:svazekPeriodika
161
n3:tvurceVysledku
Murafa, Nataliya Boháček, Jaroslav Pulišová, Petra Bezdička, Petr Šubrt, Jan Szatmáry, Lórant
n3:wos
000287730900016
n3:zamer
n8:AV0Z40320502
s:issn
0920-5861
s:numberOfPages
7
n10:doi
10.1016/j.cattod.2010.12.032