Abstract
Crystalline cerium hydroxy carbonate (CHC: Ce(OH)CO3) was prepared by a novel precipitation/digestion method at room temperature in air. The nano-sized CeO2 supports were obtained by the thermal decomposition of CHC and the Pt/CeO2 catalysts were prepared by an incipient wetness impregnation method. The pre-calcination temperature and aging time were optimized to obtain a highly active Pt/CeO2 catalyst for the water gas shift reaction (WGS). The Pt/CeO2 catalyst exhibited the highest CO conversion (82%) and the lowest activation energy (55kJ/mol) at a very high gas hourly space velocity (GHSV) of 45,515h-1 when the optimized synthesis parameter (pre-calcined temperature=400°C and aging time=4h) was used in the synthesis of CeO2. This is mainly due to the high BET surface area, nano-sized CeO2, and intimate interaction between Pt and CeO2.
| Original language | English |
|---|---|
| Pages (from-to) | 78-84 |
| Number of pages | 7 |
| Journal | Renewable Energy |
| Volume | 79 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2015 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
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Optimization of a highly active nano-sized Pt/CeO2 catalyst via Ce(OH)CO3 for the water-gas shift reaction. / Jeong, Dae Woon; Jang, Won Jun; Shim, Jae Oh; Han, Won Bi; Kim, Hak Min; Lee, Yeol Lim; Bae, Jong Wook; Roh, Hyunseog.
In: Renewable Energy, Vol. 79, No. 1, 01.01.2015, p. 78-84.Research output: Contribution to journal › Article
TY - JOUR
T1 - Optimization of a highly active nano-sized Pt/CeO2 catalyst via Ce(OH)CO3 for the water-gas shift reaction
AU - Jeong, Dae Woon
AU - Jang, Won Jun
AU - Shim, Jae Oh
AU - Han, Won Bi
AU - Kim, Hak Min
AU - Lee, Yeol Lim
AU - Bae, Jong Wook
AU - Roh, Hyunseog
PY - 2015/1/1
Y1 - 2015/1/1
N2 - Crystalline cerium hydroxy carbonate (CHC: Ce(OH)CO3) was prepared by a novel precipitation/digestion method at room temperature in air. The nano-sized CeO2 supports were obtained by the thermal decomposition of CHC and the Pt/CeO2 catalysts were prepared by an incipient wetness impregnation method. The pre-calcination temperature and aging time were optimized to obtain a highly active Pt/CeO2 catalyst for the water gas shift reaction (WGS). The Pt/CeO2 catalyst exhibited the highest CO conversion (82%) and the lowest activation energy (55kJ/mol) at a very high gas hourly space velocity (GHSV) of 45,515h-1 when the optimized synthesis parameter (pre-calcined temperature=400°C and aging time=4h) was used in the synthesis of CeO2. This is mainly due to the high BET surface area, nano-sized CeO2, and intimate interaction between Pt and CeO2.
AB - Crystalline cerium hydroxy carbonate (CHC: Ce(OH)CO3) was prepared by a novel precipitation/digestion method at room temperature in air. The nano-sized CeO2 supports were obtained by the thermal decomposition of CHC and the Pt/CeO2 catalysts were prepared by an incipient wetness impregnation method. The pre-calcination temperature and aging time were optimized to obtain a highly active Pt/CeO2 catalyst for the water gas shift reaction (WGS). The Pt/CeO2 catalyst exhibited the highest CO conversion (82%) and the lowest activation energy (55kJ/mol) at a very high gas hourly space velocity (GHSV) of 45,515h-1 when the optimized synthesis parameter (pre-calcined temperature=400°C and aging time=4h) was used in the synthesis of CeO2. This is mainly due to the high BET surface area, nano-sized CeO2, and intimate interaction between Pt and CeO2.
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UR - http://www.scopus.com/inward/citedby.url?scp=84933517545&partnerID=8YFLogxK
U2 - 10.1016/j.renene.2014.07.041
DO - 10.1016/j.renene.2014.07.041
M3 - Article
VL - 79
SP - 78
EP - 84
JO - Renewable Energy
JF - Renewable Energy
SN - 0960-1481
IS - 1
ER -