Structure and critical function of Fe and acid sites in Fe-ZSM-5 in propane oxidative dehydrogenation with N2O and N2O decomposition

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F13%3A00420718" target="_blank" >RIV/61388955:_____/13:00420718 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jcat.2012.12.010" target="_blank" >http://dx.doi.org/10.1016/j.jcat.2012.12.010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jcat.2012.12.010" target="_blank" >10.1016/j.jcat.2012.12.010</a>

Result language
angličtina
Original language name
Structure and critical function of Fe and acid sites in Fe-ZSM-5 in propane oxidative dehydrogenation with N2O and N2O decomposition
Original language description
The structure and population of ion-exchanged Fe ions, Fe-oxo species, and Fe-oxo oligomers and Fe2O3 oxide particles and the concentration of acid sites in non-steamed and steamed Fe-ZSM-5 were elucidated using semi-quantitative Mossbauer and FTIR analysis supplemented by UV-Vis and H-2-TPR. Differences in the concentration of the individual Fe species and acid sites were related to the activity and time-on-stream behavior of Fe-zeolites in decomposition of N2O and oxidative dehydrogenation of propaneto propene with N2O. The evacuated non-steamed FeH-ZSM-5 contained high concentration of Bronsted sites and predominantly bare Fe(II) ions (72%), and less mono- and dinuclear Fe(III) (16-19%) and oligomeric Fe(III)-oxo species (9-12%). The steamed Fe(H)-ZSM-5st zeolites were greatly reorganized, resulting in a low concentration of both the Bronsted sites and bare Fe(II) ions, and the T-d-coordinated Fe( III) ions in the Fe-Al-Si extra-framework species (43-47%) and Fe-oxide-like particle
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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