On the oxygen effect in nitric oxide reduction by methane over Co/ZSM-5
| Autor: | E.M. Sadovskaya, V. B. Goncharov, B.S. Balzhinimaev, Vladislav A. Sadykov, T. Décamp, A.P. Suknev, L.G. Pinaeva, Claude Mirodatos |
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| Přispěvatelé: | Institut de recherches sur la catalyse (IRC), Centre National de la Recherche Scientifique (CNRS), IRCELYON, ProductionsScientifiques |
| Rok vydání: | 1999 |
| Předmět: |
Reaction mechanism
010405 organic chemistry Applied Mathematics General Chemical Engineering Inorganic chemistry [CHIM.CATA] Chemical Sciences/Catalysis chemistry.chemical_element Selective catalytic reduction [CHIM.CATA]Chemical Sciences/Catalysis General Chemistry 010402 general chemistry 7. Clean energy 01 natural sciences Oxygen Industrial and Manufacturing Engineering Methane 0104 chemical sciences Catalysis chemistry.chemical_compound chemistry ZSM-5 Zeolite NOx |
| Zdroj: | Chemical Engineering Science Chemical Engineering Science, Elsevier, 1999, 54, pp.4327-4335 |
| ISSN: | 0009-2509 |
| Popis: | The catalytic reduction of NO by CH4 over Co/ZSM-5 zeolite is studied by means of transient in situ DRIFT, SSITK and TAP analyses. Co ions located at the interface of Co clusters and zeolite are found to react with NO in the presence of oxygen to form anchored NOδ+2 species stabilized under reaction conditions. These species form the main active sites for activating methane molecule. Two ways of CO2 formation from the same intermediate including fragments of both NOx and partially dehydrogenated CH4 molecule are proposed in the mechanistic scheme of the reaction. |
| Databáze: | OpenAIRE |
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