컴팩트 개질기용 수성가스전이 반응을 위한 Cu-CeO 2 촉매에 대한 Nb 2 O 5 의 영향
The water-gas shift reaction for the compact reformer was carried out at a gas hourly space velocity of 72,152 h-1 over the Cu-Nb-CeO2 catalysts prepared by co-precipitation method. In order to investigate the effect of Nb2O5 promotion over a Cu-CeO2 catalyst, the Nb2O5 loading amount was systematic...
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Published in | 한국수소 및 신에너지학회 논문집 Vol. 31; no. 1; pp. 57 - 64 |
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Main Authors | , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | Korean |
Published |
2020
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Subjects | |
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Abstract | The water-gas shift reaction for the compact reformer was carried out at a gas hourly space velocity of 72,152 h-1 over the Cu-Nb-CeO2 catalysts prepared by co-precipitation method. In order to investigate the effect of Nb2O5 promotion over a Cu-CeO2 catalyst, the Nb2O5 loading amount was systematically changed from 0 to 5 wt.%. Among the prepared catalysts, the Cu-Nb-CeO2 (1%) catalyst showed the highest catalytic activity (CO conversion=61% at 400℃) as well as 100% CO2 selectivity. The high activity and stability of Cu-Nb-CeO2 (1%) catalyst are correlated to high Brunauer-Emmett-Teller surface area, small metallic Cu crystallite size, and enhanced redox property. |
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AbstractList | The water-gas shift reaction for the compact reformer was carried out at a gas hourly space velocity of 72,152 h-1 over the Cu-Nb-CeO2 catalysts prepared by co-precipitation method. In order to investigate the effect of Nb2O5 promotion over a Cu-CeO2 catalyst, the Nb2O5 loading amount was systematically changed from 0 to 5 wt.%. Among the prepared catalysts, the Cu-Nb-CeO2 (1%) catalyst showed the highest catalytic activity (CO conversion=61% at 400℃) as well as 100% CO2 selectivity. The high activity and stability of Cu-Nb-CeO2 (1%) catalyst are correlated to high Brunauer-Emmett-Teller surface area, small metallic Cu crystallite size, and enhanced redox property. |
Author | JEON, KYUNG-WON 선해림 JEONG, CHANG-HOON 정창훈 정대운 KIM, JU-HWAN SHEN, KAILIN BAE, EUN-TAEK 변희주 전경원 배은택 JEONG, DAE-WOON 김주환 BYON, HUI-JU 김태광 KIM, TAE-GWANG |
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Title | 컴팩트 개질기용 수성가스전이 반응을 위한 Cu-CeO 2 촉매에 대한 Nb 2 O 5 의 영향 |
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