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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 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název A facile synthesis of mesoporous crystalline tin oxide films involving a base-triggered formation of sol–gel building blocks Tvůrce(i) Fried, D. I. (DE)
Ivanova, A. (DE)
Müller, V. (DE)
Rathouský, Jiří (UFCH-W) RID, ORCID
Smarsly, B. M. (DE)
Fattakhova-Rohlfing, D. (DE)Zdroj.dok. Nanoscale. - : Royal Society of Chemistry - ISSN 2040-3364
Roč. 3, č. 3 (2011), s. 1234-1239Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova physical chemistry ; evaporation-induced self-assembly ; crystalline thin films Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP GA104/08/0435 GA ČR - Grantová agentura ČR KAN100400702 GA AV ČR - Akademie věd CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000288218300065 DOI 10.1039/C0NR00872A Anotace 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. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2012
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