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Selective CO-oxidation over Ru-based catalysts in H2-rich gas for fuel cell applications

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Abstract

Ru-based catalysts supported on A zeolites and alumina were synthesised, characterised (XRD, SEM-EDS, TPR) and tested under realistic conditions for the preferential oxidation of CO (CO-PROX) from the hydrogen-rich gas streams produced by fossil fuels reforming. Comparative tests with a commercial catalyst were also carried out with special attention to the detection of possible side reactions (i.e. methanation and return water gas shift). The 0.5%Ru–Al2O3 catalyst resulted the most active, the most selective and the least prone to side reactions; methanation, in particular, was found to occur only when the catalyst is oxidised because of occasional exposure to O2-rich streams.

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Authors and Affiliations

  1. Dipartimento di Scienza dei Materiali e Ingegneria Chimica, Politecnico di Torino – Corso Duca degli Abruzzi, 24-10129, Torino, Italy

    Ilaria Rosso, Massimiliano Antonini, Camilla Galletti, Guido Saracco & Vito Specchia

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  1. Ilaria Rosso
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  2. Massimiliano Antonini
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  3. Camilla Galletti
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  4. Guido Saracco
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  5. Vito Specchia
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Correspondence to Ilaria Rosso.

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Rosso, I., Antonini, M., Galletti, C. et al. Selective CO-oxidation over Ru-based catalysts in H2-rich gas for fuel cell applications. Topics in Catalysis 30, 475–480 (2004). https://doi.org/10.1023/B:TOCA.0000029840.94906.ea

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  • DOI: https://doi.org/10.1023/B:TOCA.0000029840.94906.ea

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