Catalytic applications and FTIR investigation of zeolite SSZ-33 after isomorphous substitution

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F14%3A00430102" target="_blank" >RIV/61388955:_____/14:00430102 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.micromeso.2014.04.007" target="_blank" >http://dx.doi.org/10.1016/j.micromeso.2014.04.007</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.micromeso.2014.04.007" target="_blank" >10.1016/j.micromeso.2014.04.007</a>

Result language
angličtina
Original language name
Catalytic applications and FTIR investigation of zeolite SSZ-33 after isomorphous substitution
Original language description
Zeolite SSZ-33 (topology: CON, borosilicate as-synthesized) contains access to the internal void spaces via 10- and 12-ring pores. Borosilicate SSZ-33 was transformed by isomorphous substitution to Al, Ga and Fe form. The acid sites of zeolite samples were investigated using infrared spectroscopy. The different probes (d(3)-acetonitrile, pivalonitrile, pyridine and 2,6-di-tert-butyl-pyridine) were used in this study. Bronsted acidity confirms the isomorphous substitution of B by Al, Ga and Fe in the SSZ-33 framework. It was found that the strength of Bronsted acid sites of zeolites under study decreased in the series: [Al]-SSZ-33 > [Ga]-SSZ-33 > [Fe]-SSZ-33. Upon adsorption of 2,6-di-tert-butyl-pyridine a part of Bronsted acid sites was not accessible(51% [Al]-SSZ-33, 76% [Ga]-SSZ-33 and 78% [Fe]-SSZ-33). The catalytic performance was studied in toluene disproportionation and toluene alkylation with isopropyl alcohol. Toluene conversions decreased in the order: [Al]-SSZ-33 > [Ga]-SSZ-
Czech name
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Czech description
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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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Project
<a href="/en/project/GAP106%2F11%2F0819" target="_blank" >GAP106/11/0819: Understanding and controlling the location of acid sites in zeolites for their catalytic applications</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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