Abstract
The loading amount of Ba promoter in the 15 wt% Co/CeO2 catalyst system was varied from 0 wt% to 3 wt%, and the resulting catalysts were used for the high-temperature water-gas shift (HTS) reaction. The catalysts were prepared by the incipient wetness co-impregnation method and studied through various characterization techniques such as X-ray diffraction, Brunauer–Emmet–Teller measurements, CO–chemisorption, H2–temperature programmed reduction, X-ray photoelectron spectroscopy, and transmission electron microscopy. The doping of Ba as a promoter in the optimal amount (1–2 wt%) improves the reducibility of the catalyst and enhances its sintering resistance. However, the doping of an excessive amount (≥3 wt%) of the promoter lowers the reducibility of the catalyst, resulting in the instability of the active phase (Co0). Overall, the 1% BaCo/CeO2 catalyst exhibited the best performance even at a severe reaction condition (CO conc. = 38%, GHSV = 143,000 h−1) owing to the strong resistance to the sintering and high stability of the active phase.
| Original language | English |
|---|---|
| Pages (from-to) | 2715-2722 |
| Number of pages | 8 |
| Journal | Renewable Energy |
| Volume | 145 |
| DOIs | |
| Publication status | Published - 2020 Jan |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
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Increase in stability of BaCo/CeO2 catalyst by optimizing the loading amount of Ba promoter for high-temperature water-gas shift reaction using waste-derived synthesis gas. / Lee, Yeol Lim; Kim, Kyoung Jin; Jang, Won Jun; Shim, Jae Oh; Jeon, Kyung Won; Na, Hyun Suk; Kim, Hak Min; Bae, Jong Wook; Nam, Sung Chan; Jeon, Byong Hun; Roh, Hyun Seog.
In: Renewable Energy, Vol. 145, 01.2020, p. 2715-2722.Research output: Contribution to journal › Article
TY - JOUR
T1 - Increase in stability of BaCo/CeO2 catalyst by optimizing the loading amount of Ba promoter for high-temperature water-gas shift reaction using waste-derived synthesis gas
AU - Lee, Yeol Lim
AU - Kim, Kyoung Jin
AU - Jang, Won Jun
AU - Shim, Jae Oh
AU - Jeon, Kyung Won
AU - Na, Hyun Suk
AU - Kim, Hak Min
AU - Bae, Jong Wook
AU - Nam, Sung Chan
AU - Jeon, Byong Hun
AU - Roh, Hyun Seog
PY - 2020/1
Y1 - 2020/1
N2 - The loading amount of Ba promoter in the 15 wt% Co/CeO2 catalyst system was varied from 0 wt% to 3 wt%, and the resulting catalysts were used for the high-temperature water-gas shift (HTS) reaction. The catalysts were prepared by the incipient wetness co-impregnation method and studied through various characterization techniques such as X-ray diffraction, Brunauer–Emmet–Teller measurements, CO–chemisorption, H2–temperature programmed reduction, X-ray photoelectron spectroscopy, and transmission electron microscopy. The doping of Ba as a promoter in the optimal amount (1–2 wt%) improves the reducibility of the catalyst and enhances its sintering resistance. However, the doping of an excessive amount (≥3 wt%) of the promoter lowers the reducibility of the catalyst, resulting in the instability of the active phase (Co0). Overall, the 1% BaCo/CeO2 catalyst exhibited the best performance even at a severe reaction condition (CO conc. = 38%, GHSV = 143,000 h−1) owing to the strong resistance to the sintering and high stability of the active phase.
AB - The loading amount of Ba promoter in the 15 wt% Co/CeO2 catalyst system was varied from 0 wt% to 3 wt%, and the resulting catalysts were used for the high-temperature water-gas shift (HTS) reaction. The catalysts were prepared by the incipient wetness co-impregnation method and studied through various characterization techniques such as X-ray diffraction, Brunauer–Emmet–Teller measurements, CO–chemisorption, H2–temperature programmed reduction, X-ray photoelectron spectroscopy, and transmission electron microscopy. The doping of Ba as a promoter in the optimal amount (1–2 wt%) improves the reducibility of the catalyst and enhances its sintering resistance. However, the doping of an excessive amount (≥3 wt%) of the promoter lowers the reducibility of the catalyst, resulting in the instability of the active phase (Co0). Overall, the 1% BaCo/CeO2 catalyst exhibited the best performance even at a severe reaction condition (CO conc. = 38%, GHSV = 143,000 h−1) owing to the strong resistance to the sintering and high stability of the active phase.
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UR - http://www.scopus.com/inward/citedby.url?scp=85070563406&partnerID=8YFLogxK
U2 - 10.1016/j.renene.2019.08.050
DO - 10.1016/j.renene.2019.08.050
M3 - Article
AN - SCOPUS:85070563406
VL - 145
SP - 2715
EP - 2722
JO - Renewable Energy
JF - Renewable Energy
SN - 0960-1481
ER -