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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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
Title of host publicationStudies in Surface Science and Catalysis
PublisherElsevier Inc.
Pages463-468
Number of pages6
ISBN (Print)9780444515995
DOIs
Publication statusPublished - 2004

Publication series

NameStudies in Surface Science and Catalysis
Volume147
ISSN (Print)0167-2991

ASJC Scopus subject areas

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

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    Lee, S. H., Kim, H. J., Nam, J. W., Jung, H., Kang, S. K., & Lee, K. Y. (2004). Preparation of LaCoO3 with high surface area for catalytic combustion by spray-freezing/freeze-drying method. In Studies in Surface Science and Catalysis (pp. 463-468). (Studies in Surface Science and Catalysis; Vol. 147). Elsevier Inc.. https://doi.org/10.1016/s0167-2991(04)80095-8