Abstract

Synergic effect of copper and palladium for selective hydrogenation of alkynes.
SILVA, Fernanda P.; FIORIO, Jhonatan L.; GONÇALVES, Renato Vitalino; TEIXEIRA-NETO, Érico; ROSSI, Liane Marcia.
Abstract: The design of palladium-based catalysts with improved selectivity, while maintaining high activity in hydrogenation reactions and avoiding the use of lead or ligands is still a major concern in heterogeneous catalysis. Here, a novel protocol has been proposed to prepare colloidal PdCuy nanoparticles with tailored metal composition, enabling a remarkable improvement in the semihydrogenation of alkynes when compared to pure Pd or a physical mixture of Cu and Pd catalysts. The PdCuy bimetallic catalyst with 1:4 Pd/Cu atom ratio showed the best performance. The synergistic effect between the closely contacting Pd and Cu species resulted in full conversion of alkyne and high alkene selectivity for a broad range of multifunctionalized substrates under very mild conditions (30 °C and 1 bar of H2).
Industrial and Engineering Chemistry Research
v. 57, n. 48, p. 16209-16216 - Ano: 2018
Fator de Impacto: 3,141
http://dx.doi.org/10.1021/acs.iecr.8b03627
    @article={002916340,author = {SILVA, Fernanda P.; FIORIO, Jhonatan L.; GONÇALVES, Renato Vitalino; TEIXEIRA-NETO, Érico; ROSSI, Liane Marcia.},title={Synergic effect of copper and palladium for selective hydrogenation of alkynes},journal={Industrial and Engineering Chemistry Research},note={v. 57, n. 48, p. 16209-16216},year={2018}}

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