Mechanism of NO decomposition over Cu-ZSM-5

W. Keith Hall, Jozsef Valyon

Research output: Contribution to journalArticle

125 Citations (Scopus)

Abstract

In the preceding Letter Shelef [1] has proposed a mechanism for NO decomposition involving coordinatively unsaturated Cu2+ sites on which NO molecules are chemisorbed in the gem-dinitrosyl form. At reaction temperature this complex is supposed to decompose into N2 and O2 without involving a redox process. That such a process is feasible has been pointed out by Moser [2]. Shelef cited several reasons in support of this view and others that have led him to think that a cyclic redox mechanism is not operative. These arguments are countered herein and some new data are presented showing the infrared spectra of surface species recorded under in situ reaction conditions.

Original languageEnglish
Pages (from-to)311-315
Number of pages5
JournalCatalysis Letters
Volume15
Issue number3
DOIs
Publication statusPublished - Sep 1 1992

Keywords

  • Cu-ZSM-5
  • NO catalysis
  • NO decomposition mechanism
  • redox catalysis-zeolites

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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