Abstract
Platinum and rhodium particles encapsulated in Y-type zeolite are much more selective for the hydrogenation of cinnamaldehyde to cinnamyl alcohol than active charcoal-supported platinum and rhodium catalysts. The good selectivity is interpreted in terms of molecular constraints in the zeolite micropores which favour an end-on adsorption of the molecule via the C = O group on the encapsulated metal.
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Gallezot, P., Giroir-Fendler, A. & Richard, D. Chemioselectivity in cinnamaldehyde hydrogenation induced by shape selectivity effects in Pt-Y zeolite catalysts. Catal Lett 5, 169–174 (1990). https://doi.org/10.1007/BF00763949
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DOI: https://doi.org/10.1007/BF00763949