Epoxidation of Ethylene by Anion Radicals of α-Oxygen on the Surface of FeZSM-5 Zeolite Full article
| Journal |
Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694 |
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| Output data | Year: 2014, Volume: 309, Pages: 453-459 Pages count : 7 DOI: 10.1016/j.jcat.2013.11.001 | ||
| Tags | α-Oxygen, Ethylene epoxidation, Infrared spectroscopy, N2O oxidant, Oxygen anion radicals, Product extraction | ||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Foundation for Basic Research | 12-03-00063 |
| 2 | Russian Foundation for Basic Research | 12-03-31701 |
Abstract:
The stoichiometric oxidation of ethylene by anion radicals of α-oxygen, (FeIII–O-)α, created on the surface of non-modified and Na-modified FeZSM-5 zeolite was studied in the temperature range from 25 down to -60oC. Upon extraction, the products were identified using the gas chromatography, gas chromatography–mass spectrometry, and nuclear magnetic resonance. Unlike the oxidation of methane, the reaction C2H4 + Oα was shown to proceed without hydrogen abstraction from the ethylene (infrared spectroscopy data). It leads to Oα addition over the double C=C bond yielding the ethylene oxide (EO) primary product. Sodium modification of the zeolite strongly increases the selectivity for EO, which attains 80-84% at the reaction temperature of 60oC. A much lower selectivity at room temperature relates mainly to a secondary reaction of EO with ethylene leading to butyraldehyde.
High epoxidizing selectivity of α-oxygen is discussed in relation to the mechanism of ethylene epoxidation on silver catalyst.
Cite:
Starokon E.V.
, Parfenov M.V.
, Pirutko L.V.
, Soshnikov I.E.
, Panov G.I.
Epoxidation of Ethylene by Anion Radicals of α-Oxygen on the Surface of FeZSM-5 Zeolite
Journal of Catalysis. 2014. V.309. P.453-459. DOI: 10.1016/j.jcat.2013.11.001 WOS Scopus РИНЦ ANCAN OpenAlex
Epoxidation of Ethylene by Anion Radicals of α-Oxygen on the Surface of FeZSM-5 Zeolite
Journal of Catalysis. 2014. V.309. P.453-459. DOI: 10.1016/j.jcat.2013.11.001 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Sep 26, 2013 |
| Accepted: | Nov 1, 2013 |
| Published online: | Nov 30, 2013 |
| Published print: | Jan 1, 2014 |
Identifiers:
| Web of science: | WOS:000330815400047 |
| Scopus: | 2-s2.0-84888583583 |
| Elibrary: | 21861325 |
| Chemical Abstracts: | 2013:1986433 |
| Chemical Abstracts (print): | 160:118881 |
| OpenAlex: | W2078905224 |