Single stage water-gas shift reaction has been carried out at a gas hourly space velocity of 45,515 h -1 over supported Pt catalysts prepared by an incipient wetness impregnation method. CeO 2 , ZrO 2 , MgO, MgO-Al 2 O 3 (MgO = 30 wt%) and Al 2 O 3 were employed as supports for the target reaction in this study. 1 wt% Pt/CeO 2 exhibited the highest CO conversion as well as very high CO 2 selectivity due to high oxygen storage capacity of CeO 2 .
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