Complete oxidation of methane and CO at low temperature over LaCoO3 prepared by spray-freezing/freeze-drying method

Seong Ho Lee, Joon Yeob Lee, Young Moo Park, Jung Ho Wee, Kwan Young Lee

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Perovskite-type LaCoO3 oxides were prepared by spray-freezing/freeze-drying method using citrate precursor. The calcination temperature for a single phase of LaCoO3 could be lowered to 500 °C without formation of any other oxides and the product had the highest surface area of 23.7 m2/g. Below 500 °C, this catalyst with the perovskite structure and the high surface area showed higher activity for complete oxidation of low concentration methane (2000 ppm) and CO (1%) compared to Pt/Al2O3 catalyst.

Original languageEnglish
Pages (from-to)376-381
Number of pages6
JournalCatalysis Today
Volume117
Issue number1-3
DOIs
Publication statusPublished - 2006 Sep 30

Keywords

  • CO
  • Complete oxidation
  • LaCoO
  • Methane
  • Perovskite

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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