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Issue
Korean Journal of Chemical Engineering,
Vol.33, No.6, 1781-1787, 2016
Preferential CO oxidation over supported Pt catalysts
Jeon KW, Jeong DW, Jang WJ, Shim JO, Na HS, Kim HM, Lee YL, Jeon BH, Kim SH, Bae JW, Roh HS
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 ℃ 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.
Keywords: Preferential CO Oxidation; Pt/Al2O3; Dispersion; Reducibility; Electron Transfer
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[Cited By]
  1. Park JH, Noh H, Chang TS, Shin CH, Korean Journal of Chemical Engineering, 35(3), 645, 2018
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