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Anatase nanoparticles from hydrated titania gels
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SYSNO ASEP 0364458 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Anatase nanoparticles from hydrated titania gels Tvůrce(i) Pulišová, Petra (UACH-T) RID, SAI
Boháček, Jaroslav (UACH-T) SAI
Šubrt, Jan (UACH-T) SAI, RID
Szatmáry, Lórant (UACH-T) RID, ORCID, SAI
Bezdička, Petr (UACH-T) SAI, RID, ORCID
Murafa, Nataliya (UACH-T) RID, SAIZdroj.dok. Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 161, č. 1 (2011), s. 84-90Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova anatase particles Vědní obor RIV CA - Anorganická chemie CEP 1M0577 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z40320502 - UACH-T (2005-2011) UT WOS 000287730900016 DOI 10.1016/j.cattod.2010.12.032 Anotace 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. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2012
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