Mesoporous titanosilicates by templated non-hydrolytic sol?gel reactions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F15%3A00080828" target="_blank" >RIV/00216224:14740/15:00080828 - isvavai.cz</a>
Alternative codes found
RIV/61388980:_____/15:00443044
Result on the web
<a href="http://link.springer.com/article/10.1007%2Fs10971-015-3666-8#" target="_blank" >http://link.springer.com/article/10.1007%2Fs10971-015-3666-8#</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10971-015-3666-8" target="_blank" >10.1007/s10971-015-3666-8</a>

Result language
angličtina
Original language name
Mesoporous titanosilicates by templated non-hydrolytic sol?gel reactions
Original language description
A novel templated non-hydrolytic sol?gel synthesis of titanosilicate xerogels is reported. Acetamide elimination from silicon acetate and titanium diethylamide allows obtaining titanosilicates with a high content of Si-O-Ti bonds but low surface areas. These xerogels lose porosity on calcination. However, with addition of Pluronic P123 as a structure-directing agent, we synthesized mesoporous titanosilicate materials with large surface areas (up to 615 m2 g-1) and well dispersed tetrahedral Ti that arestable at temperatures up to 500 °C. These potential catalysts were characterized by variety of physico-chemical methods (IR, GC?MS, XRD, 29Si and 13C CPMAS NMR, DRUV-Vis, and N2 porosimetry) and tested in cyclohexene epoxidation with cumyl hydroperoxidein toluene. They display catalytic activity with the 100 % selectivity to cyclohexene oxide and high catalytic yields up to 96 % which is comparable to previously reported titanosilicate catalysts.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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