Combining Kinetics and Operando Spectroscopy to Interrogate the Mechanism and Active Site Requirements of NO x Selective Catalytic Reduction with NH3 on Cu-Zeolites

Combining Kinetics and Operando Spectroscopy to Interrogate the Mechanism and Active Site Requirements of NO x Selective Catalytic Reduction with NH3 on Cu-Zeolites

NO x selective catalytic reduction (SCR) with NH3 on Cu-zeolites is a commercial emissions control technology for diesel and lean-burn engines. Mitigating low-temperature emissions remains an outstanding challenge, motivating an improved understanding of the reaction mechanism, active site requireme...

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Veröffentlicht in:The journal of physical chemistry letters 2020-07, Vol.11 (13), p.5029-5036
Hauptverfasser: Krishna, Siddarth H, Jones, Casey B, Miller, Jeffrey T, Ribeiro, Fabio H, Gounder, Rajamani
Format: Artikel
Sprache:eng
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Zusammenfassung:NO x selective catalytic reduction (SCR) with NH3 on Cu-zeolites is a commercial emissions control technology for diesel and lean-burn engines. Mitigating low-temperature emissions remains an outstanding challenge, motivating an improved understanding of the reaction mechanism, active site requirements, and rate-determining processes at low temperatures (
ISSN:1948-7185
1948-7185
DOI:10.1021/acs.jpclett.0c00903