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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 and Jiří PINKAS. Templated non-hydrolytic synthesis of mesoporous zirconium silicates and their catalytic properties. \textit{Journal of materials science}. NEW YORK: Springer, 2015, vol.~50, No~9, p.~3371-3382. ISSN~0022-2461. Available from: https://dx.doi.org/10.1007/s10853-015-8888-1.
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