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 language | English |
|---|---|
| Pages (from-to) | 463-468 |
| Number of pages | 6 |
| Journal | Studies in Surface Science and Catalysis |
| Volume | 147 |
| Publication status | Published - 2004 Dec 9 |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Catalysis
- Condensed Matter Physics
- Materials Chemistry
- Surfaces, Coatings and Films
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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. Studies in Surface Science and Catalysis, 147, 463-468.