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Hydrogenation of C=C and C=O groups on ruthenium-tin catalysts

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Abstract

The effect of addition of tin on the catalytic activity of Ru/C catalysts has been investigated in the liquid phase hydrogenation of β-methylstyrene and hydrocinnamaldehyde. On increasing the Sn content, the amount of CO chemisorbed decreases, indicating a decrease in the number of Ru surface atoms. In the hydrogenation of β-methylstyrene the specific activity of Ru (calculated per Ru surface atom) remains constant regardless of the Sn/Ru ratio. An increase of specific activity is however observed in the hydrogenation of hydrocinnamaldehyde. It is suggested that tin, present mainly as Sn ions, enhances the reactivity of the C=O group.

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Authors and Affiliations

  1. Dipartimento di Chimica Industriale, Università di Messina, Cas. Post. 29, I-98166, Sant'Agata (Messina), Italy

    S. Galvagno

  2. Facoltà di Ingegneria, Università di Reggio Calabria, Via Cuzzocrea 48, I-89100, Reggio Calabria, Italy

    A. Donato, G. Neri & R. Pietropaolo

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  1. S. Galvagno
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  2. A. Donato
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  3. G. Neri
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  4. R. Pietropaolo
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Galvagno, S., Donato, A., Neri, G. et al. Hydrogenation of C=C and C=O groups on ruthenium-tin catalysts. Catal Lett 8, 9–14 (1991). https://doi.org/10.1007/BF00764377

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  • DOI: https://doi.org/10.1007/BF00764377

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