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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Synergic Effect of Copper and Palladium for Selective Hydrogenation of Alkynes

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da Silva, Fernanda P. [1] ; Fiorio, Jhonatan L. [1] ; Goncalves, V, Renato ; Teixeira-Neto, Erico [2] ; Rossi, Liane M. [1]
Total Authors: 5
[1] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Av Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP - Brazil
[2] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Nanotechnol Natl Lab LNNano, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Industrial & Engineering Chemistry Research; v. 57, n. 48, p. 16209-16216, DEC 5 2018.
Web of Science Citations: 2

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 PdCu(y )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 degrees C and 1 bar of H-2). (AU)

FAPESP's process: 16/16738-7 - Study of the influence of organic ligands on the reactivity of gold nanoparticles
Grantee:Liane Marcia Rossi
Support type: Regular Research Grants