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An in situ infrared study of NO reduction by C3H8 over Fe‐ZSM‐5

An in situ infrared study of NO reduction by C3H8 over Fe‐ZSM‐5 The interactions of NO, O2 and NO2 with Fe‐ZSM‐5, as well as the reduction of NO by C3H8 in the presence of O2, have been investigated using in situ infrared spectroscopy. The sample of Fe‐ZSM‐5 (Fe/Al =0.56) was prepared by solid‐state ion exchange. NO adsorption in the absence of O2 produces only mono‐ and dinitrosyl species associated with Fe2+ cations. Adsorbed NO2/NO3 species are formed via the reaction of adsorbed O2 with gas‐phase NO or by the adsorption of gas‐phase NO2. The reduction of NO in the presence of O2 begins with the reaction of gas‐phase C3H8 with adsorbed NO2/NO3 species to form a nitrogen‐containing polymeric species. A reaction pathway is proposed for the catalyzed reduction of NO by C3H8 in the presence of O2. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Catalysis Letters Springer Journals

An in situ infrared study of NO reduction by C3H8 over Fe‐ZSM‐5

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References (23)

Publisher
Springer Journals
Copyright
Copyright © 1999 by Kluwer Academic Publishers
Subject
Chemistry; Physical Chemistry; Industrial Chemistry/Chemical Engineering; Catalysis; Pharmacy
ISSN
1011-372X
eISSN
1572-879X
DOI
10.1023/A:1019033508479
Publisher site
See Article on Publisher Site

Abstract

The interactions of NO, O2 and NO2 with Fe‐ZSM‐5, as well as the reduction of NO by C3H8 in the presence of O2, have been investigated using in situ infrared spectroscopy. The sample of Fe‐ZSM‐5 (Fe/Al =0.56) was prepared by solid‐state ion exchange. NO adsorption in the absence of O2 produces only mono‐ and dinitrosyl species associated with Fe2+ cations. Adsorbed NO2/NO3 species are formed via the reaction of adsorbed O2 with gas‐phase NO or by the adsorption of gas‐phase NO2. The reduction of NO in the presence of O2 begins with the reaction of gas‐phase C3H8 with adsorbed NO2/NO3 species to form a nitrogen‐containing polymeric species. A reaction pathway is proposed for the catalyzed reduction of NO by C3H8 in the presence of O2.

Journal

Catalysis LettersSpringer Journals

Published: Sep 30, 2004

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