Effect of process variables on Pt/CeO2 catalyst behaviour for the PROX reaction |
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| Authors: | J.L. Ayastuy, A. Gil-Rodrí guez, M.P. Gonz lez-Marcos,M.A. Guti rrez-Ortiz |
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| Affiliation: | aGroup of Chemical Technologies for Environmental Sustainability, Department of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, P.O. Box 644, 48080 Bilbao, Spain |
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| Abstract: | A Pt/CeO2 catalyst has been evaluated for CO oxidation, both in the absence of H2 and in H2-rich feedstreams. The catalyst shows high activity and selectivity at temperatures as low as 80 °C, what makes it a viable catalyst for the selective depletion of CO in the temperature range at which PEMFC operate. The effect of: oxygen excess during operation (λ), the presence of either CO2 (5%), H2O (5%) or both in the feedstream, and the spatial time, on catalyst activity and selectivity has been evaluated. |
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| Keywords: | Cerium oxide Pt CO oxidation Selective CO oxidation Catalyst yield |
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