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@article{1297404,
author = {Škoda, David and Stýskalík, Aleš and Moravec, Zdeněk and Bezdička, Petr and Pinkas, Jiří},
article_location = {NEW YORK},
article_number = {9},
doi = {http://dx.doi.org/10.1007/s10853-015-8888-1},
keywords = {Zirconium; Silicates; Nonhydrolytic; Sol-Gel; Templated; Mesoporous; Xerogel; Acetamide; Elimination; Catalysis},
language = {eng},
issn = {0022-2461},
journal = {Journal of materials science},
title = {Templated non-hydrolytic synthesis of mesoporous zirconium silicates and their catalytic properties},
url = {http://download.springer.com/static/pdf/793/art%253A10.1007%252Fs10853-015-8888-1.pdf?originUrl=http%3A%2F%2Flink.springer.com%2Farticle%2F10.1007%2Fs10853-015-8888-1&token2=exp=1435057909~acl=%2Fstatic%2Fpdf%2F793%2Fart%25253A10.1007%25252Fs10853-015-88},
volume = {50},
year = {2015}
}
TY - JOUR
ID - 1297404
AU - Škoda, David - Stýskalík, Aleš - Moravec, Zdeněk - Bezdička, Petr - Pinkas, Jiří
PY - 2015
TI - Templated non-hydrolytic synthesis of mesoporous zirconium silicates and their catalytic properties
JF - Journal of materials science
VL - 50
IS - 9
SP - 3371-3382
EP - 3371-3382
PB - Springer
SN - 00222461
KW - Zirconium
KW - Silicates
KW - Nonhydrolytic
KW - Sol-Gel
KW - Templated
KW - Mesoporous
KW - Xerogel
KW - Acetamide
KW - Elimination
KW - Catalysis
UR - http://download.springer.com/static/pdf/793/art%253A10.1007%252Fs10853-015-8888-1.pdf?originUrl=http%3A%2F%2Flink.springer.com%2Farticle%2F10.1007%2Fs10853-015-8888-1&token2=exp=1435057909~acl=%2Fstatic%2Fpdf%2F793%2Fart%25253A10.1007%25252Fs10853-015-88
L2 - http://download.springer.com/static/pdf/793/art%253A10.1007%252Fs10853-015-8888-1.pdf?originUrl=http%3A%2F%2Flink.springer.com%2Farticle%2F10.1007%2Fs10853-015-8888-1&token2=exp=1435057909~acl=%2Fstatic%2Fpdf%2F793%2Fart%25253A10.1007%25252Fs10853-015-88
N2 - A novel non-hydrolytic sol-gel (NHSG) synthesis of mesoporous zirconium silicate xerogels is presented. The condensation between silicon acetate, Si(OAc)(4), and Zr(NEt2)(4) resulting in acetamide elimination leads to homogeneous zirconium silicate xerogels containing Si-O-Zr linkages. The addition of Pluronic P123 template provides stiff gels that are after template removal by calcination at 500 A degrees C in air converted to stable mesoporous xerogels with wormhole-type pores, high surface area over 500 m(2) g(-1), and tetrahedrally coordinated Zr atoms in the framework. The composition and morphology of the xerogels, volatile reaction byproducts, and thermal transformations were followed by elemental analysis, IR spectroscopy, thermal analysis TG-DSC, nitrogen adsorption, C-13 and Si-29 solid-state NMR spectroscopy, DRUV-Vis spectroscopy, SAXS, and HT powder XRD. These potential catalysts were tested for the Meerwein-Ponndorf-Verley reduction of 4-tert-butylcyclohexanone and for aminolysis of styrene oxide with aniline. Resulting reaction systems display good activity and selectivity.
ER -
ŠKODA, David, Aleš STÝSKALÍK, Zdeněk MORAVEC, Petr BEZDIČKA a Jiří PINKAS. Templated non-hydrolytic synthesis of mesoporous zirconium silicates and their catalytic properties. \textit{Journal of materials science}. NEW YORK: Springer, roč.~50, č.~9, s.~3371-3382. ISSN~0022-2461. doi:10.1007/s10853-015-8888-1. 2015.
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