Exploring the catalytic activity of regular and ultralarge-pore Nb,Sn-SBA-15 mesoporous molecular sieves
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F07%3A00085035" target="_blank" >RIV/61388955:_____/07:00085035 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Exploring the catalytic activity of regular and ultralarge-pore Nb,Sn-SBA-15 mesoporous molecular sieves
Original language description
A novel bifunctional mesoporous material Nb,Sn-SBA-15 has been synthesized in one pot synthesis by in-situ introduction of niobium and tin salts and by controlling the synthesis conditions. These molecular sieves possess a high dispersion of both metalsresulting in both the strong and weak acidic sites being simultaneously formed on SBA-15. Optimization of acid concentration in synthetic gels resulted in tuning of pore geometries while maintaining high structural regularity and in silica frameworks appropriate for catalytic applications were proved by UV-vis spectroscopy and catalytic reaction. Activity and selectivity of niobium/tincontaining mesoporous molecular sieves have been tested in liquid phase oxidation of cyclohexene. On the basis of this investigation, the new efficient NbSBA-15 catalyst prepared via conventional synthesis has been selected.
Czech name
Výzkum katalytické aktivity na bázi Nb,Sn-SBA-15 mesoporézních molekulových sít
Czech description
Byl syntetizován nový mesoporézní materiál na bázi Nb,Sn-SBA-15 přimým přidáním Sn a Nb do reakční směsi. Tento katalyzátor vykazuje vysokou disperzitu obou kovů v křemičitanové matrici. Optimalizace reakčních podmínek umožnla tvorbu mesoporézního síta svelikostí porů až 14 nm. Koordinace atomů byla studována pomocí UV-VIS a katalytických testů při oxidaci cyklohexenu v kapalné fázi. Podařilo se připravit nový typ katalyzátoru s vysokou oxidační aktivitou.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>R - Projekt Ramcoveho programu EK
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Studies in Surface Science and Catalysis
ISSN
0167-2991
e-ISSN
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Volume of the periodical
170
Issue of the periodical within the volume
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Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
6
Pages from-to
1432-1437
UT code for WoS article
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EID of the result in the Scopus database
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