Bronsted acidity of H-MCM-22 as probed by variable-temperature infrared spectroscopy of adsorbed CO and N-2

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F14%3A00427871" target="_blank" >RIV/61388955:_____/14:00427871 - isvavai.cz</a>
Alternative codes found
RIV/00216275:25310/14:39898156
Result on the web
<a href="http://dx.doi.org/10.1016/j.cattod.2013.09.013" target="_blank" >http://dx.doi.org/10.1016/j.cattod.2013.09.013</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cattod.2013.09.013" target="_blank" >10.1016/j.cattod.2013.09.013</a>

Result language
angličtina
Original language name
Bronsted acidity of H-MCM-22 as probed by variable-temperature infrared spectroscopy of adsorbed CO and N-2
Original language description
Bronsted acidity is a key factor controlling catalytic performance of zeolites in many technological processes, and hence the need to find a reliable means for measuring acidity strength. The enthalpy change, Delta H-0, involved in the hydrogen bonding interaction between a weak base, such as carbon monoxide or dinitrogen, and the Bronsted acid [Si(OH)Al] hydroxyl groups should correlate with the zeolite acid strength. However, on account of simplicity, the red shift of the O-H stretching frequency, Delta nu(OH), in the hydrogen-bonded OH center dot center dot center dot CO or OH center dot center dot center dot N-2 complexes is frequently measured (instead of Delta H-0) and correlated with acid strength; and in fact it is often found that Delta H-0 and Delta nu(OH), correlate among themselves, but this might not always be the case. We report herein on a variable-temperature IR (VTIR) spectroscopic study of the interaction of CO and N-2 with the protonic zeolite H-MCM-22 (structure typ
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
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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