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Supported CuO/Ce1−x Zr x O2 catalysts for the preferential oxidation of CO in H2-rich gases

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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.

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Authors and Affiliations

  1. Dipartimento di ingegneria chimica, Universitá degli studi di Napoli “Federico II”, P.le Tecchio, 80-80125, Napoli, Italy

    T. Caputo & G. Russo

  2. Istituto di Ricerche sulla Combustione, CNR, P.le Tecchio, 80-80125, Napoli, Italy

    R. Pirone

Authors
  1. T. Caputo
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  2. R. Pirone
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  3. G. Russo
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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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Caputo, T., Pirone, R. & Russo, G. Supported CuO/Ce1−x Zr x O2 catalysts for the preferential oxidation of CO in H2-rich gases. Kinet Catal 47, 756–764 (2006). https://doi.org/10.1134/S0023158406050156

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  • DOI: https://doi.org/10.1134/S0023158406050156

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