Role of the different copper species on the activity of Cu/zeolite catalysts for SCR of NOx with NH3

•NH3 NOx-SCR is studied on Cu-ZSM5 and Cu-BETA prepared by ion exchange and impregnation.•CuO and Cu(II) exchanged on tetrahedral and octahedral positions of zeolite framework were found.•CuO prevails in high Cu-content on ZSM5. Isolated Cu(II) ions prevail in low Cu-content on BETA catalysts.•CuO p...

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Veröffentlicht in:	Applied catalysis. B, Environmental Environmental, 2014-04, Vol.147, p.420-428
Hauptverfasser:	Pereda-Ayo, Beñat, De La Torre, Unai, Illán-Gómez, María José, Bueno-López, Agustín, González-Velasco, Juan R.
Format:	Artikel
Sprache:	eng
Schlagworte:	ACTIVITY Catalysis CATALYSTS Copper COPPER OXIDE Cu cluster Cu-zeolite Emission analysis Inductively coupled plasma NITROGEN OXIDE NOx removing SCR Spectroscopy X RAY SPECTROSCOPY X-ray photoelectron spectroscopy Zeolites
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