Preferential CO oxidation over supported Pt catalysts |
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| Authors: | Kyung-Won Jeon Dae-Woon Jeong Won-Jun Jang Jae-Oh Shim Hyun-Suk Na Hak-Min Kim Yeol-Lim Lee Byong-Hun Jeon Seong-Heon Kim Jong Wook Bae Hyun-Seog Roh |
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| Affiliation: | 1.Department of Environmental Engineering,Yonsei University,Gangwon-do,Korea;2.Department of Natural Resources and Environmental Engineering,Hanyang University,Seoul,Korea;3.School of Chemical Engineering,Sungkyunkwan University (SKKU),Gyeonggi-do,Korea |
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| Abstract: | Preferential CO oxidation reaction has been carried out at a gas hourly space velocity of 46,129 h?1 over supported Pt catalysts prepared by an incipient wetness impregnation method. Al2O3, MgO-Al2O3 (MgO=30 wt% and 70 wt%) and MgO were employed as supports for the target reaction. 1 wt% Pt/Al2O3 catalyst exhibited very high performance (X CO >90% at 175 °C for 100 h) in the reformate gases containing CO2 under severe conditions. This result is mainly due to the highest Pt dispersion, easier reducibility of PtO x , and easier electron transfer of metallic Pt. In addition, 1 wt% Pt/Al2O3 catalyst was also tested in the reformate gases with both CO2 and H2O to evaluate under realistic condition. |
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