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 |
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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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Preparation of LaCoO3 with high surface area for catalytic combustion by spray-freezing/freeze-drying method. / Lee, Seong Ho; Kim, Hak Ju; Nam, Jun Woo; Jung, Heon; Kang, Sung Kyu; Lee, Kwan Young.
In: Studies in Surface Science and Catalysis, Vol. 147, 09.12.2004, p. 463-468.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Preparation of LaCoO3 with high surface area for catalytic combustion by spray-freezing/freeze-drying method
AU - Lee, Seong Ho
AU - Kim, Hak Ju
AU - Nam, Jun Woo
AU - Jung, Heon
AU - Kang, Sung Kyu
AU - Lee, Kwan Young
PY - 2004/12/9
Y1 - 2004/12/9
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=9444239135&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=9444239135&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:9444239135
VL - 147
SP - 463
EP - 468
JO - Studies in Surface Science and Catalysis
JF - Studies in Surface Science and Catalysis
SN - 0167-2991
ER -