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@article{1300517,
author = {Škoda, David and Stýskalík, Aleš and Moravec, Zdeněk and Bezdička, Petr and Barnes, Craig E. and Pinkas, Jiří},
article_location = {Dordrecht (Netherlands)},
article_number = {3},
doi = {http://dx.doi.org/10.1007/s10971-015-3666-8},
keywords = {Non-hydrolytic sol-gel; Templating; Acetamide elimination; Mesoporous; Epoxidation Catalysis},
language = {eng},
issn = {0928-0707},
journal = {Journal of Sol-Gel Science and Technology},
title = {Mesoporous titanosilicates by templated non-hydrolytic sol–gel reactions},
url = {http://link.springer.com/article/10.1007%2Fs10971-015-3666-8#},
volume = {74},
year = {2015}
}
TY - JOUR
ID - 1300517
AU - Škoda, David - Stýskalík, Aleš - Moravec, Zdeněk - Bezdička, Petr - Barnes, Craig E. - Pinkas, Jiří
PY - 2015
TI - Mesoporous titanosilicates by templated non-hydrolytic sol–gel reactions
JF - Journal of Sol-Gel Science and Technology
VL - 74
IS - 3
SP - 810 - 822
EP - 810 - 822
PB - Springer
SN - 09280707
KW - Non-hydrolytic sol-gel
KW - Templating
KW - Acetamide elimination
KW - Mesoporous
KW - Epoxidation Catalysis
UR - http://link.springer.com/article/10.1007%2Fs10971-015-3666-8#
L2 - http://link.springer.com/article/10.1007%2Fs10971-015-3666-8#
N2 - 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 are stable 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 hydroperoxide in 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.
ER -
ŠKODA, David, Aleš STÝSKALÍK, Zdeněk MORAVEC, Petr BEZDIČKA, Craig E. BARNES a Jiří PINKAS. Mesoporous titanosilicates by templated non-hydrolytic sol–gel reactions. \textit{Journal of Sol-Gel Science and Technology}. Dordrecht (Netherlands): Springer, roč.~74, č.~3, s.~810 - 822. ISSN~0928-0707. doi:10.1007/s10971-015-3666-8. 2015.
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