Catalysis Letters

, Volume 18, Issue 1–2, pp 99–109 | Cite as

Activity and selectivity of PtNi/TiO2 catalysts for hydrogenation of crotonaldehyde

  • Christian G. Raab
  • Johannes A. Lercher


The hydrogenation of crotonaldehyde over a series of titania supported PtNi catalysts was investigated. Pt/TiO2 had the highest activity to hydrogenate the\(C = O\) bond of crotonaldehyde. With the addition of Ni to Pt the activity for carbonyl group hydrogenation decreased, while that for the\(C = C\) bond hydrogenation increased. Two different types of sites were established to be active for\(C = O\) bond hydrogenation, located at (i) the Pt-TiO2 interface and (ii) the PtNi bimetallic phase. For the Pt-TiO2 interface the presence of accessible Ti x+ cations in close distance to Pt and for the PtNi phase a slightly positively charged Ni on the surface of these alloy particles were concluded to be responsible for the enhanced selectivity to crotylalcohol. The hydrogenation of the\(C = C\) bond occurs mainly on the “clean” metal surfaces of Ni and Pt.


Selective hydrogenation PtNi/TiO2 bimetallic catalysts 


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  1. [1]
    P.N. Rylander, in:Catalytic Hydrogenation over Platinum Metals Academic Press, London, 1967).Google Scholar
  2. [2]
    P.N. Rylander and D.R. Steele, Tetrahedron Lett. 20 (1969) 1579.Google Scholar
  3. [3]
    S. Galvagno, Z. Poltarzewski, A. Donato, G. Neriand R. Pietropaolo, J. Mol. Catal. 35 (1986) 365.Google Scholar
  4. [4]
    Z. Poltarzewski, S. Galvagno, R. Pietropaolo and P. Staiti, J. Catal. 102 (1986) 190.Google Scholar
  5. [5]
    D. Goupil, F. Fouilloux and R. Maurel, React. Kinet. Catal. Lett. 35 (1987) 185.Google Scholar
  6. [6]
    P. Beccat, J.C. Bertolini, Y. Gauthier, J. Massardier and P. Ruiz, J. Catal. 126 (1990) 451.Google Scholar
  7. [7]
    Chr.G. Raab and J.A. Lercher, J. Mol. Catal. 75 (1992) 71.Google Scholar
  8. [8]
    M.A. Vannice and C.C. Twu, J. Catal. 82 (1983) 213.Google Scholar
  9. [9]
    M.A. Vannice, C.C. Twu and S.H. Moon, J. Catal. 79 (1983) 70.Google Scholar
  10. [10]
    M.A. Vannice and B. Sen, J. Catal. 115 (1989) 65.Google Scholar
  11. [11]
    S.J. Tauster, S.C. Fung and R.L. Garten, J. Am. Chem. Soc. 100 (1978) 170.Google Scholar
  12. [12]
    G.L. Haller and D.E. Resasco, Adv. Catal. 36 (1989) 193.Google Scholar
  13. [13]
    A. Jentys, B. McHugh, G.L. Haller and J.A. Lercher, J. Phys. Chem. 96 (1992) 1324.Google Scholar
  14. [14]
    D. Richard, J. Ockelford, A. Giroir-Fendler and P. Gallezot, Catal. Lett. 3 (1989) 53.Google Scholar
  15. [15]
    S. Galvagno, A. Donato, G. Neri and R. Pietropaolo, Catal. Lett. 8 (1991) 9.Google Scholar

Copyright information

© J.C. Baltzer AG, Science Publishers 1993

Authors and Affiliations

  • Christian G. Raab
    • 1
  • Johannes A. Lercher
    • 1
  1. 1.Institut für Physikalische Chemie and Christian Doppler Laboratorium für Heterogene KatalyseTechnische Universität WienViennaAustria

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