Metal oxide catalysts for lean NOx reduction

K. A. Bethke, M. C. Kung, B. Yang, M. Shah, D. Alt, C. Li, H. H. Kung*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

122 Scopus citations


A summary of the current understanding of the lean NOx reduction reaction on various metal oxides, particularly Cu-ZrO2, is presented. Whenever appropriate, a comparison with the behavior of the corresponding ZSM-5-based catalysts is made. It is concluded that there are many mechanistic similarities between metal oxide-based and zeolite-based catalysts. Thus, the catalytic properties are determined more by the nature of the active centers than by the nature of the support. Potential advantages offered by metal oxides should make them attractive candidates for practical applications.

Original languageEnglish (US)
Pages (from-to)169-183
Number of pages15
JournalCatalysis Today
Issue number2
StatePublished - Nov 20 1995


  • Copper-metal oxide
  • Exhaust gas treatment catalysts
  • Hydrocarbon-NO reaction
  • NO
  • Reduction
  • catalyst

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)


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