Mesoporous hybrid inorganic-organic phosphosilicates by non-hydrolytic sol-gel reactions
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F14%3A00077575" target="_blank" >RIV/00216224:14740/14:00077575 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Mesoporous hybrid inorganic-organic phosphosilicates by non-hydrolytic sol-gel reactions
Popis výsledku v původním jazyce
Non-hydrolytic sol-gel reactions based on condensation of two functional groups are studied as an alternative to aqueous techniques for the synthesis of multimetallic oxides and inorganic-organic hybrid materials in the form of xerogels, nanoparticles, and thin films. We developed a non-hydrolytic sol-gel route based on acetic acid ester elimination providing parent phosphosilicate and its hybrid inorganic-organic derivatives. The polycondensation reactions between Si(OAc)4 and OP(OSiMe3)3 provides microporous phosphosilicate xerogels with surface areas up to 570 m2 g-1. Substitution reactions of residual acetoxy and trimethylsiloxy groups on the surface with a variety of reagents, such as SiCl4, RSiCl3, POCl3, AlX3, ROH, and Me3SiOSiMe3, show versatility of the synthesized phosphosilicate xerogels in tuning their properties, such as Bronsted and Lewis acidity.
Název v anglickém jazyce
Mesoporous hybrid inorganic-organic phosphosilicates by non-hydrolytic sol-gel reactions
Popis výsledku anglicky
Non-hydrolytic sol-gel reactions based on condensation of two functional groups are studied as an alternative to aqueous techniques for the synthesis of multimetallic oxides and inorganic-organic hybrid materials in the form of xerogels, nanoparticles, and thin films. We developed a non-hydrolytic sol-gel route based on acetic acid ester elimination providing parent phosphosilicate and its hybrid inorganic-organic derivatives. The polycondensation reactions between Si(OAc)4 and OP(OSiMe3)3 provides microporous phosphosilicate xerogels with surface areas up to 570 m2 g-1. Substitution reactions of residual acetoxy and trimethylsiloxy groups on the surface with a variety of reagents, such as SiCl4, RSiCl3, POCl3, AlX3, ROH, and Me3SiOSiMe3, show versatility of the synthesized phosphosilicate xerogels in tuning their properties, such as Bronsted and Lewis acidity.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
CA - Anorganická chemie
OECD FORD obor
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Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů