Methane combustion over B-site partially substituted perovskite-type LaFeO3 prepared by sol-gel method

Ziyi Zhong, Kaidong Chen, Yong Ji, Qijie Yan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

96 Scopus citations

Abstract

Ultrafine perovskite-type complex oxides LaFe1-yAyO3-λ (A=Mn, Al, Co) were prepared by sol-gel method using citric acid as complex agent, and characterized by XRD, TPR, TG and XPS techniques. The catalytic activities for methane combustion were tested and compared with that of the large particle oxides having the same composition. It was shown that the catalytic activities of ultrafine LaFe1-yAyO3-λ complex oxides were much higher than that of LaFeOs sample due to the increase of high valence B-site cations and lattice oxygen content by the substitution of B-site elements. Much higher catalytic activities were also observed for the ultrafine perovskite-type complex oxides compared to their large particle counterparts.

Original languageEnglish
Pages (from-to)29-41
Number of pages13
JournalApplied Catalysis A: General
Volume156
Issue number1
DOIs
StatePublished - 14 Aug 1997
Externally publishedYes

Keywords

  • B-site partially substituted LaFeO
  • Methane combustion
  • Ultrafine particles

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