The relationship of structural defect-redox property-catalytic performance of perovskites and their related compounds for CO and NOx removal

Hongxing Dai*, Hong He, Peiheng Li, Lizhen Gao, Chak Tong AU

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

56 Citations (Scopus)

Abstract

Perovskite-type oxides and perovksite-like oxides were investigated as catalysts for CO oxidation, NO removal, and N2O decomposition. X-ray diffraction analysis of these compounds revealed that they were single phase and their crystal structures were regular. Oxygen mobility was also checked and it was found that Bi doped catalysts had better oxygen mobility than Bi free catalysts. The results show that there is a strong correlation either between the structural defect and catalytic activity or between the redox ability and catalytic performance of these materials for CO and NOx removal.

Original languageEnglish
Pages (from-to)231-244
Number of pages14
JournalCatalysis Today
Volume90
Issue number3-4
DOIs
Publication statusPublished - 1 Jul 2004
EventEnvironmental Catalysis and Eco-Materials - Beijing, China
Duration: 7 Oct 20037 Oct 2003

Scopus Subject Areas

  • Catalysis
  • Chemistry(all)

User-Defined Keywords

  • O/O isotopic exchange
  • CO oxidation
  • DeNO
  • Lattice oxygen mobility
  • NO decomposition
  • NO removal
  • Oxidative nonstoichiometry
  • Perovskite oxide catalysts

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