Article citationsMore>>
C. Serre, F. Garin, G. Belot and G. Maire, “Reactivity of Pt/Al2O3 and Pt-CeO2Al2O3 Catalysts for the Oxidation of Carbon Monoxide by Oxygen: I. Catalyst Characterization by TPR Using CO as Reducing Agent,” Journal of Catalysis, Vol. 141, No. 1, 1993, pp. 1-8.
doi:10.1006/jcat.1993.1113
has been cited by the following article:
-
TITLE:
Removal of Carbon Monoxide from Hydrogen-rich Fuels over CeO2-promoted Pt/Al2O3
AUTHORS:
Akkarat Wongkaew, Pichet Limsuwan
KEYWORDS:
CO Oxidation; CeO2-Pt/alumina; CO Adsorption; Selective CO Oxidation; Fuel Processing
JOURNAL NAME:
Advances in Chemical Engineering and Science,
Vol.3 No.4B,
October
25,
2013
ABSTRACT: A comparative study of catalytic CO oxidation and selective CO oxidation over Pt/Al2O3 and CeO2-promoted Pt/Al2O3 catalysts has been investigated for the removal of a trace amount of CO from the reformed gas. The catalysts were prepared by sol gel and incipient wetness impregnation. CO oxidation and selective CO oxidation were carried out with a 5%Pt/Al2O3 and a 5%Pt/15%CeO2/Al2O3. The presence of 15%CeO2 inthe 5%Pt/Al2O3 dramatically improves the activities to CO oxidation and selective CO oxidation at low temperature (0℃). FTIR results indicate that CO could react with lattice oxygen from ceria and release CO2 as a product. Low space velocity would obtain high CO conversion at low temperatures while high space velocity would obtain high CO conversion at high temperatures. The results also show that a 5%Pt/15%CeO2/Al2O3 can completely oxidize 1% CO at180℃with selectivity of 52% and space velocity of70,000 cm3·g-1·h-1. Under the realistic gas feed with 1%O2, this catalyst is very stable and retains its activity and selectivity at180℃during 72 h.