title: The promotional effect of Sn-beta zeolites on platinum for the selective hydrogenation of α,β-unsaturated aldehydes.
abstract: Pt impregnated on a Sn-beta catalyst results in a very promising catalyst for the selective hydrogenation of α,β-unsaturated aldehydes, compared to the PtSn co-impregnated beta catalysts. Framework tin ions in the Sn-beta sample stabilize the nucleation of platinum nanoparticles inside the zeolite channel. These Pt(0)-Sn(4+) sites, which are only observed in the Pt/Sn-beta catalyst, have been shown to strongly activate the carbonyl group enhancing the hydrogenation rate of the C=O bond.
authors.affiliation: Instituto de Tecnología Química CSIC-UPV, Universidad Politécnica de Valencia, 46022 Valencia, Spain.
authors.forename: Patricia
authors.initials: P
authors.lastname: Concepción
authors.forename: Yolanda
authors.initials: Y
authors.lastname: Pérez
authors.forename: J C
authors.initials: JC
authors.lastname: Hernández-Garrido
authors.forename: Mariano
authors.initials: M
authors.lastname: Fajardo
authors.forename: J J
authors.initials: JJ
authors.lastname: Calvino
authors.forename: Avelino
authors.initials: A
authors.lastname: Corma
mesh_terms: D000447:Aldehydes / Q000737:chemistry*; D002384:Catalysis; D006865:Hydrogenation; D058116:Lewis Acids / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry; D010984:Platinum / Q000737:chemistry*; D014001:Tin / Q000737:chemistry*; D017641:Zeolites / Q000737:chemistry*
chemical_list: D000447:Aldehydes; D058116:Lewis Acids; D017641:Zeolites; D010984:Platinum; D014001:Tin