To meet more strict international Europe VI emission standard, Cu–Ce/SAPO-34 and Cu–Ce/SSZ-13 were prepared by once ion exchange–impregnation methods for the selective catalytic reduction (SCR) of NOx with NH3, and physicochemical properties as well as its catalytic characteristics had been investigated. Comparing to the Cu–Ce/SAPO-34 catalyst, Cu–Ce/SSZ-13 catalyst showed better low-temperature activity, wider temperature window, excellent resistance to H2O and SO2, good dispersion, low reduce temperature, and the strongest surface acidity. Cu–Ce/SSZ-13 catalyst was a promising technology for De–NOx with NH3 in diesel vehicle.
Hydrothermal stability High active Low temperature Novel
This is a preview of subscription content, log in to check access.
Granger P, Parvulescu VI (2011) Catalytic NOx abatement systems for mobile sources: from three-way to lean burn after-treatment technologies. Chem Rev 111:3155–3207CrossRefGoogle Scholar
Roy S, Hegde MS, Madras G (2009) Catalysis for NOx abatement. Appl Energy 86(11):2283–2297CrossRefGoogle Scholar
Yang X, Wu Z, Moses-Debusk M (2012) Heterometal incorporation in metal-exchanged zeolites enables low-temperature catalytic activity of NOx reduction. Phys Chem C 116(44):23322–23331CrossRefGoogle Scholar
Raquel M-F, Manuel M, Cristina F, Arkady K, Avelino C (2012) Rational direct synthesis methodology of very active and hydro-thermally stable Cu-SAPO-34 molecular sieves for the SCR of NOx. Appl Catal B 127:273–280CrossRefGoogle Scholar