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Role of Pt Oxidation State on the Activity and Selectivity for Crotonaldehyde Hydrogenation Over Pt–Sn/Al2O3–La and Pt–Pb/Al2O3–La Catalysts

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Abstract

Pt–Sn/ALa10 and Pt–Pb/ALa10 catalysts (10 wt% La2O3) were studied in the selective hydrogenation of crotonaldehyde. Oxidized Pt2+ and reduced Pt0 species were identified by XPS on the bimetallic catalysts. High selectivity to crotylalcohol was obtained on the Pt–Pb/ALa10 catalyst where an electron transfer effect from Pb to Pt was proposed. For the Pt–Sn/ALa10 catalyst the formation of Pt–SnO x –La2O3 complexes showing low activity and low selectivity was inferred.

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Acknowledgements

C. Guzmán thanks CONACYT for the scholarship.

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Authors and Affiliations

  1. Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, P.O. Box 55-534, C.P. 09340, México D.F., México

    C. Guzmán, G. Del Angel & V. Bertin

  2. Instituto de Catálisis y Petroquímica, CSIC, Cantoblanco, 28049, Madrid, Spain

    J. L. G. Fierro

Authors
  1. C. Guzmán
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  2. G. Del Angel
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  3. J. L. G. Fierro
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  4. V. Bertin
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Correspondence to G. Del Angel.

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Guzmán, C., Del Angel, G., Fierro, J.L.G. et al. Role of Pt Oxidation State on the Activity and Selectivity for Crotonaldehyde Hydrogenation Over Pt–Sn/Al2O3–La and Pt–Pb/Al2O3–La Catalysts. Top Catal 53, 1142–1144 (2010). https://doi.org/10.1007/s11244-010-9549-x

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  • DOI: https://doi.org/10.1007/s11244-010-9549-x

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