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Mechanistic peculiarities of the N2O reduction by CH4 over Fe-silicalite |
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| Authors: | Evgenii V Kondratenko Javier Prez-Ramírez |
| Affiliation: | aLeibniz-Institute für Katalyse e. V. an der Universität Rostock, Aussenstelle Berlin, Richard-Willstätter-Str. 12, D-12489 Berlin, Germany bLaboratory for Heterogeneous Catalysis, Catalan Institution for Research and Advanced Studies (ICREA) and Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, E-43007 Tarragona, Spain |
| Abstract: | Transient isotopic studies in the temporal analysis of products (TAP) reactor evidenced the importance of the lifetime of oxygen species generated upon N2O decomposition on extraframework iron sites of Fe-silicalite for methane oxidation at 723 K. Fe-silicalite effectively activates CH4 when N2O and CH4 are pulsed together in the reactor. However, these oxygen species gradually become inactive for methane oxidation as the time delay between the N2O and CH4 pulses is increased from 0 to 2 s. |
| Keywords: | N2O reduction Iron silicalite Oxygen species Lifetime CH4 oxidation Mechanism TAP reactor |
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