Preparation of LaCoO3 with high surface area for catalytic combustion by spray-freezing/freeze-drying method

Seong Ho Lee, Hak Ju Kim, Jun Woo Nam, Heon Jung, Sung Kyu Kang, Kwan Young Lee

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6 Citations (Scopus)

Abstract

Perovskite-type LaCoO3 oxides were prepared using citrate precursor by spray-freezing/freeze-drying. The calcination temperature for a single phase of LaCoO3 could be lowered to 500°C without formation of any other oxides and the product has the highest surface area of 24 m2/g, which has not been reported yet. It was confirmed by IR and TG analyses that the greater amount of citrate existed in the precursor dried by spray-freezing/freeze-drying than by evaporation drying, which contributed to the high surface area and well-crystallized phase of LaCoO3.

Original languageEnglish
Pages (from-to)463-468
Number of pages6
JournalStudies in Surface Science and Catalysis
Volume147
Publication statusPublished - 2004 Dec 9

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis
  • Condensed Matter Physics
  • Materials Chemistry
  • Surfaces, Coatings and Films

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