Supported CuO/Ce1−x Zr x O2 catalysts for the preferential oxidation of CO in H2-rich gases |
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Authors: | T. Caputo R. Pirone G. Russo |
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Affiliation: | (1) Dipartimento di ingegneria chimica, Universitá degli studi di Napoli “Federico II”, P.le Tecchio, 80-80125 Napoli, Italy;(2) Istituto di Ricerche sulla Combustione, CNR, P.le Tecchio, 80-80125 Napoli, Italy |
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Abstract: | The catalytic properties of CuO supported on ceria or ceria-zirconia mixed oxides have been investigated in the preferential oxidation of CO in H2-rich gases. CuO/CeO2 shows very high activity towards the oxidation of CO with a light-off temperature of about 70°C. This catalyst is very selective for the oxidation of CO rather than of H2 in the low temperature region (70–120°C), while at higher temperatures, the oxidation of hydrogen begins, causing of a maximum of CO conversion to arise with increasing temperature. Published in Russian in Kinetika i Kataliz, 2006, Vol. 47, No. 5, pp. 779–787. This article was submitted by the authors in English. |
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