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A facile synthesis of mesoporous crystalline tin oxide films involving a base-triggered formation of sol–gel building blocks
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SYSNO ASEP 0358448 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A facile synthesis of mesoporous crystalline tin oxide films involving a base-triggered formation of sol–gel building blocks Author(s) Fried, D. I. (DE)
Ivanova, A. (DE)
Müller, V. (DE)
Rathouský, Jiří (UFCH-W) RID, ORCID
Smarsly, B. M. (DE)
Fattakhova-Rohlfing, D. (DE)Source Title Nanoscale. - : Royal Society of Chemistry - ISSN 2040-3364
Roč. 3, č. 3 (2011), s. 1234-1239Number of pages 6 s. Language eng - English Country GB - United Kingdom Keywords physical chemistry ; evaporation-induced self-assembly ; crystalline thin films Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA104/08/0435 GA ČR - Czech Science Foundation (CSF) KAN100400702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000288218300065 DOI 10.1039/C0NR00872A Annotation We have developed a new facile procedure for manufacturing crystalline thin films of SnO2 with a uniform mesoporous architecture and full crystallinity of the walls. The procedure is based on the evaporation-induced self-assembly (EISA) of prehydrolyzed tin oxide precursor directed by a commercially available Pluronic polymer. The formation of the tin oxide precursor, which can be self-assembled into a mesoporous structure, is achieved by an addition of ammonium hydroxide to a tin tetrachloride solution. The relative concentration of ammonium hydroxide as well as the duration and temperature of the hydrolysis reaction influence significantly the properties of hydrolyzed tin oxide species and the mesostructure assembled from them. The films coated from these precursor solutions and calcined at 300 to 400 °C exhibit a well-developed worm-like porosity with a wall to wall distance of ca. 18 nm, a surface area of up to 50 cm2 cm−2 (corresponding to 55±5 m2 g−1), and high crystallinity. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2012
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