Activation of molecular oxygen over binuclear iron centers in Al-rich *BEA zeolite
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F23%3A00572765" target="_blank" >RIV/61388955:_____/23:00572765 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0343339" target="_blank" >https://hdl.handle.net/11104/0343339</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apcatb.2023.122915" target="_blank" >10.1016/j.apcatb.2023.122915</a>
Alternative languages
Result language
angličtina
Original language name
Activation of molecular oxygen over binuclear iron centers in Al-rich *BEA zeolite
Original language description
Here, we present the unique redox properties of distant binuclear iron centers in Al-rich *BEA zeolite in O2 splitting and CH4 oxidation. Al-rich *BEA was obtained via a template-free synthesis procedure guaranteeing low-defected structure and a high fraction of Al-pairs enabling stabilization of binuclear iron centers. By employment of a multispectroscopic in-situ approach (Mössbauer and X-ray absorption) the formation of active oxygen over binuclear iron centers in Al-rich *BEA was confirmed and subsequent CH4 oxidation was studied. Spontaneous release of the reaction products to the gas stream, representing a significant advantage of the studied system, was proved by the results of in-situ FTIR and mass spectrometry. This is the first experimental proof of the formation of fully-functioned binuclear iron centers (able to split O2, stabilize active oxygen forms, and subsequently oxidize CH4) in zeolite of *BEA topology.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
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
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Catalysis B - Environmental
ISSN
0926-3373
e-ISSN
1873-3883
Volume of the periodical
336
Issue of the periodical within the volume
NOV 2023
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
122915
UT code for WoS article
001021130600001
EID of the result in the Scopus database
2-s2.0-85160550567