FTIRS study of the nature and reactivity of the products of nitromethane transformation on the surface of copper- and cobalt-exchanged ZSM-5 zeolites as related to the mechanism of NO(x) CH4-SCR

S. A. Beloshapkin, E. A. Paukshtis, V. A. Sadykov

Research output: Contribution to journalArticlepeer-review

Abstract

For Cu- and Co-ZSM-5, at temperatures around 300°C, the adsorption of nitromethane followed by its acid-catalyzed transformation into isocyanates and melamine as well as the reactivity of these species with respect to oxygen and NO were studied by FTIRS. Both species easily interact with molecular oxygen, while no reaction with NO was observed. In the course of melamine oxidation, partial oxidation products including isocyanates appear to be produced. The reactivity of melamine and isocyanate depends upon the temperature and nature of transition metal cation, being reasonably high to suggest their role as intermediates in the NO(x) CH4-SCR. (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)355-359
Number of pages5
JournalJournal of Molecular Catalysis A: Chemical
Volume158
Issue number1
DOIs
Publication statusPublished - 8 Sep 2000
Externally publishedYes

Keywords

  • FTIRS
  • Mechanism of NO(x) reduction by methane
  • Nitromethane

Fingerprint

Dive into the research topics of 'FTIRS study of the nature and reactivity of the products of nitromethane transformation on the surface of copper- and cobalt-exchanged ZSM-5 zeolites as related to the mechanism of NO(x) CH4-SCR'. Together they form a unique fingerprint.

Cite this