Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Synergic Effect of Copper and Palladium for Selective Hydrogenation of Alkynes

Texto completo
Autor(es):
da Silva, Fernanda P. [1] ; Fiorio, Jhonatan L. [1] ; Goncalves, V, Renato ; Teixeira-Neto, Erico [2] ; Rossi, Liane M. [1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[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
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Industrial & Engineering Chemistry Research; v. 57, n. 48, p. 16209-16216, DEC 5 2018.
Citações Web of Science: 2
Resumo

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)

Processo FAPESP: 16/16738-7 - Estudo da influência de ligantes orgânicos sobre a reatividade de nanopartículas de ouro
Beneficiário:Liane Marcia Rossi
Linha de fomento: Auxílio à Pesquisa - Regular