Supported bismuth oxide catalysts for the selective reduction of NO with propene in lean conditions

Dennis E. Sparks, Patricia M. Patterson, Gary Jacobs, Mark Crocker, John A. Chaney

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Bi2O3/Al2O3 materials were prepared by impregnation of a γ-Al2O3 support with bismuth citrate and tested as catalysts for the selective catalytic reduction of NO with propene. Under simulated diesel exhaust gas conditions (500 ppm NO, 10% O2, 6% H2O) with 600 ppm propene as reductant, a maximum in NO conversion of 56% was attained at 525°C and a GHSV of ca. 30,000 h-1. Water significantly inhibited NO reduction by competing for adsorption sites with the propene and/or NO reactants. To correlate NO reduction activity with catalyst composition, the catalysts were characterized using XRD, XPS and N2 physisorption methods.

Original languageEnglish
Pages (from-to)122-126
Number of pages5
JournalCatalysis Communications
Issue number3
StatePublished - Mar 2006

Bibliographical note

Funding Information:
The authors wish to thank Dr. Gerald Thomas for performing the X-ray diffraction measurements. This research work was supported in part by a grant from the Kentucky Science and Engineering Foundation as per Grant Agreement #KSEF-148-502-04-92 with the Kentucky Science and Technology Corporation.


  • Bismuth
  • NOx
  • Propene
  • Selective catalytic reduction

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Process Chemistry and Technology


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