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Novel Synthesis of the TiO2(B) Multilayer Templated Films
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SYSNO ASEP 0323619 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Novel Synthesis of the TiO2(B) Multilayer Templated Films Title Nová syntéza TiO2(B) mnohovrstvých templátovaných filmů Author(s) Procházka, Jan (UFCH-W)
Kavan, Ladislav (UFCH-W) RID, ORCID
Zukalová, Markéta (UFCH-W) RID, SAI, ORCID
Frank, Otakar (UFCH-W) RID, ORCID
Kalbáč, Martin (UFCH-W) RID, ORCID
Zukal, Arnošt (UFCH-W) RID
Klementová, Mariana (UACH-T) RID, SAI, ORCID
Carbone, D. (FR)
Graetzel, M. (CH)Source Title Chemistry of Materials. - : American Chemical Society - ISSN 0897-4756
Roč. 21, č. 8 (2009), s. 1457-1464Number of pages 8 s. Language eng - English Country US - United States Keywords TiO2(B) ; synthesis ; films Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects LC510 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) IAA400400804 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) KAN200100801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) KAN100500652 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40400503 - UFCH-W (2005-2011) AV0Z40320502 - UACH-T (2005-2011) UT WOS 000265412400009 DOI 10.1021/cm801819q Annotation TiO2(B) mesoporous thin films were grown in two steps on the F-doped SnO2 conductive glass substrates. In the first step, small amount of H3PO4, corresponding to 0.15-0.375 wt % P on TiO2 basis, was introduced into concentrated HCl which was subsequently used for hydrolysis of titanium ethoxide. The hydrolyzed colloidal TiO2 suspension was further mixed with a 1-butanol solution of the amphiphilic triblock copolymer Pluronic P123. The obtained precursor mixture was used for dip coating of FTO substrates. To achieve over 1 .mu.m thick films, dip coating (followed by a thermal treatment at 350°C/2h) was repeated several times to produce multilayer films. The films consisted of amorphous TiO2 with small amounts of anatase and TiO2(B). The amorphous part was converted into the TiO2(B) in a simple firing step at 500-550°C. The formation of TiO2(B) phase was accompanied by a significant increase of the film thickness. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2009
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