caa a22 4500 475843738 CHVBK 20180406123908.0 cr unu---uuuuu 170329e20000401xx s 000 0 eng 10.1023/A:1027265528877 doi (NATIONALLICENCE)springer-10.1023/A:1027265528877 Effect of sulfur dioxide on nitric oxide adsorption and decomposition on Cu-containing micro- and mesoporous molecular sieves [Elektronische Daten] [M. Ziółek, I. Sobczak, I. Nowak, M. Daturi, J.C. Lavalley] NO decomposition was studied at different temperatures on copper-exchanged ZSM-5, AlMCM-41 and NbMCM-41 molecular sieves. Cu-ZSM-5 zeolites presented the highest activity. SO2 poisoning was also performed and Cu-NbMCM-41 was found to be more resistant. IR results of NO and SO2 coadsorption either at room temperature or at 573 K show evidence that sulfate formation occurred at 573 K and partially prevented NO adsorption on Cu2+ in square planar structure in Cu-ZSM-5. Sulfation of Cu-NbMCM-41 was quite low due to niobium incorporated into the lattice. By contrast, niobium present in the extra-lattice position in CuNb-ZSM-5 and CuNb-AlMCM-41 did not protect the catalyst from sulfation. H2-TPR results suggested that sulfates were formed on copper sites. IR spectra after treatment under SO2 + O2 at 673 K indicated that sulfated species were covalently bonded, their structure varying according to the nature of the support. Kluwer Academic Publishers, 2000 Cu-ZSM-5 nationallicence Cu-AlMCM-41 nationallicence Cu-NbMCM-41 nationallicence SO2 poisoning nationallicence NO adsorption and decomposition nationallicence FTIR nationallicence H2-TPR nationallicence Ziółek M. Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland aut Sobczak I. Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland aut Nowak I. Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland aut Daturi M. Laboratoire Catalyse et Spectrochimie, UMR 6506, ISMRA, Université, 6, Boulevard du Marechal Juin, 14050, Caen Cedex, France aut Lavalley J.C. Laboratoire Catalyse et Spectrochimie, UMR 6506, ISMRA, Université, 6, Boulevard du Marechal Juin, 14050, Caen Cedex, France aut Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 11-12/1-4(2000-04-01), 343-350 1022-5528 11-12:1-4<343 2000 11-12 11244 https://doi.org/10.1023/A:1027265528877 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1027265528877 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ziółek M. Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland aut NATIONALLICENCE 700 1- Sobczak I. Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland aut NATIONALLICENCE 700 1- Nowak I. Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland aut NATIONALLICENCE 700 1- Daturi M. Laboratoire Catalyse et Spectrochimie, UMR 6506, ISMRA, Université, 6, Boulevard du Marechal Juin, 14050, Caen Cedex, France aut NATIONALLICENCE 700 1- Lavalley J.C. Laboratoire Catalyse et Spectrochimie, UMR 6506, ISMRA, Université, 6, Boulevard du Marechal Juin, 14050, Caen Cedex, France aut NATIONALLICENCE 773 0- Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 11-12/1-4(2000-04-01), 343-350 1022-5528 11-12:1-4<343 2000 11-12 11244 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer