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Enhancement of decane-SCR-NOx over Ag/alumina by hydrogen. Reaction kinetics and in situ FTIR and UV-vis study
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SYSNO ASEP 0028528 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Enhancement of decane-SCR-NOx over Ag/alumina by hydrogen. Reaction kinetics and in situ FTIR and UV-vis study Title Zvýšení selektivní katalytické redukce oxidů dusíku na Ag/alumině vodíkem. Reakční kinetika a in-situ FTIR a UV-Vis studie Author(s) Sazama, Petr (UFCH-W) RID, ORCID
Čapek, Libor (UFCH-W)
Drobná, H. (CZ)
Sobalík, Zdeněk (UFCH-W) RID
Dědeček, Jiří (UFCH-W) RID, ORCID
Arve, K. (FI)
Wichterlová, Blanka (UFCH-W) RIDSource Title Journal of Catalysis. - : Elsevier - ISSN 0021-9517
Roč. 232, č. 2 (2005), s. 302-317Number of pages 16 s. Language eng - English Country US - United States Keywords SCR-NOx ; hydrogen effect ; Ag clusters ; in situ FTIR Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects 1ET400400413 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40400503 - UFCH-W (2005-2011) Annotation Decane-SCR-NOx oxidation of NO and decane by molecular oxygen, and these reactions enhanced by hydrogen over Ag/alumina were investigated by monitoring of gaseous product composition, surface intermediates (in situ FTIR), and the state of silver (in situ UV-vis) under realistic reaction conditions in the steady-state and transient modes. It has been shown that oxidation of NO or decane by oxygen is greatly affected by the presence of decane or NO. Monodentate nitrates are formed preferentially and are more reactive compared with the bidentate species. Oxidation of decane mostly yields surface acetates, and the presence of NOx favors the formation of formates (acrylates). The reaction steps most enhanced by the addition of hydrogen to the SCR-NOx reaction are the transformations of the intermediate -CN species into -NCO and oxidation of the hydrocarbon to formates (acrylates). Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2006
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