Surface Active Sites of Modified Zeolites and Zirconia in the Conversion of Nitrogen(I, II) Oxides

Samples of zirconia doped with transition metal (Cr, Co, Ce) oxides, and also rhodium-promoted and Fe-containing zeolites of different structural types, were studied by NH 3 -TPD and IR spectroscopy. The various samples were analyzed with respect to their catalytic performances in deNO x reactions,...

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Main Authors: Svetlana M. Orlyk, Tatyana V. Mironyuk, Tatyana M. Boichuk
Format: Article
Language:English
Published: SAGE Publications 2007-02-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1260/026361707781485771
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author Svetlana M. Orlyk
Tatyana V. Mironyuk
Tatyana M. Boichuk
author_facet Svetlana M. Orlyk
Tatyana V. Mironyuk
Tatyana M. Boichuk
author_sort Svetlana M. Orlyk
collection DOAJ
description Samples of zirconia doped with transition metal (Cr, Co, Ce) oxides, and also rhodium-promoted and Fe-containing zeolites of different structural types, were studied by NH 3 -TPD and IR spectroscopy. The various samples were analyzed with respect to their catalytic performances in deNO x reactions, in particular the selective catalytic reduction of NO (N 2 O) using hydrocarbons as reducing agents (HC SCR). Bifunctional zeolite- and ZrO 2 -based catalysts exhibited high activity in the SCR of nitrogen(I, II) oxides to dinitrogen due to the combination of the surface redox and acidic properties exhibited by these materials.
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spelling doaj.art-dc51e76056d44164acc8039122a56c1c2024-03-02T00:29:46ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40382007-02-012510.1260/026361707781485771Surface Active Sites of Modified Zeolites and Zirconia in the Conversion of Nitrogen(I, II) OxidesSvetlana M. OrlykTatyana V. MironyukTatyana M. BoichukSamples of zirconia doped with transition metal (Cr, Co, Ce) oxides, and also rhodium-promoted and Fe-containing zeolites of different structural types, were studied by NH 3 -TPD and IR spectroscopy. The various samples were analyzed with respect to their catalytic performances in deNO x reactions, in particular the selective catalytic reduction of NO (N 2 O) using hydrocarbons as reducing agents (HC SCR). Bifunctional zeolite- and ZrO 2 -based catalysts exhibited high activity in the SCR of nitrogen(I, II) oxides to dinitrogen due to the combination of the surface redox and acidic properties exhibited by these materials.https://doi.org/10.1260/026361707781485771
spellingShingle Svetlana M. Orlyk
Tatyana V. Mironyuk
Tatyana M. Boichuk
Surface Active Sites of Modified Zeolites and Zirconia in the Conversion of Nitrogen(I, II) Oxides
Adsorption Science & Technology
title Surface Active Sites of Modified Zeolites and Zirconia in the Conversion of Nitrogen(I, II) Oxides
title_full Surface Active Sites of Modified Zeolites and Zirconia in the Conversion of Nitrogen(I, II) Oxides
title_fullStr Surface Active Sites of Modified Zeolites and Zirconia in the Conversion of Nitrogen(I, II) Oxides
title_full_unstemmed Surface Active Sites of Modified Zeolites and Zirconia in the Conversion of Nitrogen(I, II) Oxides
title_short Surface Active Sites of Modified Zeolites and Zirconia in the Conversion of Nitrogen(I, II) Oxides
title_sort surface active sites of modified zeolites and zirconia in the conversion of nitrogen i ii oxides
url https://doi.org/10.1260/026361707781485771
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AT tatyanavmironyuk surfaceactivesitesofmodifiedzeolitesandzirconiaintheconversionofnitrogeniiioxides
AT tatyanamboichuk surfaceactivesitesofmodifiedzeolitesandzirconiaintheconversionofnitrogeniiioxides