Anatase nanoparticles from hydrated titania gels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F11%3A00364458" target="_blank" >RIV/61388980:_____/11:00364458 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cattod.2010.12.032" target="_blank" >http://dx.doi.org/10.1016/j.cattod.2010.12.032</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cattod.2010.12.032" target="_blank" >10.1016/j.cattod.2010.12.032</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Anatase nanoparticles from hydrated titania gels

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Anatase nanoparticles from hydrated titania gels

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/1M0577" target="_blank" >1M0577: Výzkumné centrum pro nanopovrchové inženýrství</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Catalysis Today

ISSN

0920-5861

e-ISSN

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Svazek periodika

161

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

84-90

Kód UT WoS článku

000287730900016

EID výsledku v databázi Scopus

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