Preferential CO oxidation over supported Pt catalysts

被引：0
|
作者：
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
机构：
[1] Yonsei University,Department of Environmental Engineering
[2] Hanyang University,Department of Natural Resources and Environmental Engineering
[3] Sungkyunkwan University (SKKU),School of Chemical Engineering
来源：
Korean Journal of Chemical Engineering | 2016年 / 33卷
关键词：
Preferential CO Oxidation; Pt/Al; O; Dispersion; Reducibility; Electron Transfer;
D O I：
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中图分类号：
学科分类号：
摘要：
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 (XCO>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 PtOx, 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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页码：1781 / 1787
页数：6
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