Publication details

Novel non-hydrolytic templated sol-gel synthesis of mesoporous aluminosilicates and their use as aminolysis catalysts

Authors

ŠKODA David STÝSKALÍK Aleš MORAVEC Zdeněk BEZDIČKA Petr BABIAK Michal KLEMENTOVÁ Mariana BARNES Craig E. PINKAS Jiří

Year of publication 2016
Type Article in Periodical
Magazine / Source RSC Advances
MU Faculty or unit

Central European Institute of Technology

Citation
Web http://pubs.rsc.org/en/Content/ArticleLanding/2016/RA/C5RA24563J#!divAbstract
Doi http://dx.doi.org/10.1039/c5ra24563j
Field Inorganic chemistry
Keywords Sol-gel; Non-hydrolytic condensation; Templating; Acetamide elimination; Mesoporous; Mixed oxides; Aluminosilicate; Aminolysis; Catalysis
Description A novel non-hydrolytic sol-gel (NHSG) synthesis of mesoporous aluminosilicate xerogels is presented. The polycondensation between silicon acetate, Si(OAc)(4), and tris(dimethylamido) alane, Al(NMe2)(3), leads to homogeneous aluminosilicate xerogels containing Si-O-Al linkages through dimethylacetamide elimination. The addition of Pluronic P123 and F127 templates provides stiff gels that are, after calcination at 500 degrees C, converted to stable mesoporous xerogels with a high surface area (>600 m(2) g(-1)) and wormhole-type pores (d = 5.9 nm). The xerogels exhibit high catalytic activity in aminolysis of styrene oxide (82% conversion) with the turnover frequency up to 100.
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