Quantitative analysis of IR spectra of carbonylic species in alkali-metal exchanged ZSM-5 and FER zeolites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F15%3A39898598" target="_blank" >RIV/00216275:25310/15:39898598 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.cattod.2014.07.027" target="_blank" >http://dx.doi.org/10.1016/j.cattod.2014.07.027</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cattod.2014.07.027" target="_blank" >10.1016/j.cattod.2014.07.027</a>

Result language
angličtina
Original language name
Quantitative analysis of IR spectra of carbonylic species in alkali-metal exchanged ZSM-5 and FER zeolites
Original language description
The molar absorption coefficients of IR bands previously assigned to monocarbonyls on isolated cations, bridged carbonyls interacting with two nearby cations and isocarbonyls formed on potassium and sodium cations in the FER and ZSM-5 zeolites were determined by analyzing data obtained under specific adsorption conditions by using IR spectroscopy coupled with volumetry. In accordance with the prediction of the electrostatic model of CO interaction with potassium and sodium cations, molar absorption coefficient of isocarbonyl species is higher than molar absorption coefficient of C-down monocarbonyl complex. Behavior of bridged carbonyl complexes does not obey general rule according to which, for localized vibrations, the band intensity increases as their frequency decreases. Calculated molar absorption coefficients of given type of carbonyl complex in different zeolite structures are not the same and cannot be generalized. Thanks to these results, the quantity of different surface carb
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/GBP106%2F12%2FG015" target="_blank" >GBP106/12/G015: Intelligent design of nanoporous adsorbents and catalysts</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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