Effect of Pt dispersion on the reduction of NO by propene over alumina-supported Pt catalysts under lean-burn conditions

Jong Hwan Lee, Harold H Kung

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

Reduction of NO by propene under lean-bum exhaust conditions and oxidation of NO were studied on two Pt/γ-Al2O3 catalysts of 4.4% and 82% dispersion of Pt. At 265 °C, the turnover frequency for the oxidation of NO was over 100 times higher on the low dispersion than the high dispersion catalyst. The difference was much less pronounced for the reduction of NO. In the reduction of NO, the N2O/N2 ratio in the product was found to increase with the conversion of hydrocarbon, while depend much less on Pt dispersion, temperature, or NO conversion.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalCatalysis Letters
Volume51
Issue number3-4
Publication statusPublished - 1998

Fingerprint

Aluminum Oxide
Catalyst supports
Propylene
Alumina
aluminum oxides
catalysts
Oxidation
oxidation
Catalysts
Hydrocarbons
hydrocarbons
propylene
products
Temperature
temperature

Keywords

  • No oxidation
  • No reduction
  • No reduction
  • Propene reduction of no
  • Pt dispersion effect

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

Effect of Pt dispersion on the reduction of NO by propene over alumina-supported Pt catalysts under lean-burn conditions. / Lee, Jong Hwan; Kung, Harold H.

In: Catalysis Letters, Vol. 51, No. 3-4, 1998, p. 1-4.

Research output: Contribution to journalArticle

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