Lattice oxygen of La1-xSrxMO3 (M = Mn, Ni) and LaMnO3-αFβ perovskite oxides for the partial oxidation of methane to synthesis gas

H. J. Wei, Y. Cao, W. J. Ji*, Chak Tong AU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

The partial oxidation of methane to synthesis gas by using the lattice oxygen of La1-xSrxMO3 (M = Mn, Ni; x = 0-0.4) and LaMnO3-αFβ (β/(3 - α) = 0.1) perovskite oxides was explored. Approximately 75% CO selectivity at 16% CH4 conversion with H2/CO molar ratio of ca. 2.5 can be achieved at 800 °C. The stability of the perovskite structure and the reactivity/selectivity of lattice oxygen are found to be dependent on (i) B-site element, (ii) degree of substitution of La with Sr, and (iii) fluorination of the perovskite oxide.

Original languageEnglish
Pages (from-to)2509-2514
Number of pages6
JournalCatalysis Communications
Volume9
Issue number15
DOIs
Publication statusPublished - 20 Sep 2008

Scopus Subject Areas

  • Catalysis
  • Chemistry(all)
  • Process Chemistry and Technology

User-Defined Keywords

  • Lattice oxygen
  • Methane
  • Partial oxidation
  • Perovskite oxide
  • Synthesis gas

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