Evolution of Active Oxygen Species Originating from O2 Cleavage over Fe-FER for Application in Methane Oxidation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F23%3A00569095" target="_blank" >RIV/61388955:_____/23:00569095 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0340418" target="_blank" >https://hdl.handle.net/11104/0340418</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acscatal.2c06099" target="_blank" >10.1021/acscatal.2c06099</a>
Alternative languages
Result language
angličtina
Original language name
Evolution of Active Oxygen Species Originating from O2 Cleavage over Fe-FER for Application in Methane Oxidation
Original language description
Here, we show a spectroscopic study of the formation and oxidation properties of α-oxygen originating from O2 dissociation over binuclear Fe(II) structure in Fe-ferrierite. The investigation of its formation, stability, and methane oxidation properties toward methanol formation at elevated temperatures was confirmed by in situ FTIR spectroscopy and mass spectrometry. For a deeper insight into the redox properties of Fe centers embedded in ferrierite, Mössbauer and X-ray adsorption spectroscopies were used as complementary methods. In situ FTIR spectroscopy and activity test results recorded at elevated temperatures convenient for potential industrial applications (through-flow reactor, 220 °C) showed that binuclear Fe(II) centers in FER can split O2 and form stable species [Fe(IV)=O]2+ active in three consecutive cycles in methane to methanol oxidation. Those results were confirmed by changes in the values of hyperfine parameters of iron species in ferrierite in Mössbauer spectra and by changes in the Fe K-edge XAS spectrum recorded under redox conditions.
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
<a href="/en/project/GA19-02901S" target="_blank" >GA19-02901S: Innovative approache for utilization of methane - Enzyme inspired zeolite catalysts</a><br>
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
ACS Catalysis
ISSN
2155-5435
e-ISSN
2155-5435
Volume of the periodical
13
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
3345-3355
UT code for WoS article
000944557600001
EID of the result in the Scopus database
2-s2.0-85148897545