Air stable ligandless heterogeneous catalyst systems based on Pd and Au supported in SiO2 and MCM-41 for Suzuki–Miyaura cross-coupling in aqueous médium.
dc.contributor.author | Speziali, Marcelo Gomes | |
dc.contributor.author | Silva, Anderson Gabriel Marques da | |
dc.contributor.author | Miranda, Débora Michelini Vaz de | |
dc.contributor.author | Monteiro, Adriano Lisboa | |
dc.contributor.author | Robles Azocar, Patrícia Alejandra | |
dc.date.accessioned | 2015-04-17T15:33:30Z | |
dc.date.available | 2015-04-17T15:33:30Z | |
dc.date.issued | 2013 | |
dc.description.abstract | Palladium and palladium-gold containing siliceous-MCM-41 and sol–gel palladium and palladium-gold silica composites have been prepared. The catalytic performance of incorporated Pd/MCM-41, Au- Pd/MCM-41 and Pd and Au-Pd/SiO2 sol–gel catalysts for the Suzuki–Miyaura cross-coupling reaction was determined and the influence of the matrix and the catalyst composition on the catalytic activity were also studied. The catalysts were characterized by N2 physisorption (BET/BJH methods), X-ray diffraction, temperature programmed reduction analysis, H2 chemisorption, atomic absorption spectrophotometry and Raman spectroscopy. The silica-containing palladium and palladium-gold catalysts prepared using the MCM-41 matrix showed greater catalytic activity than using the conventional sol–gel method; however, gold had a significant influence on this reaction. The catalyst did not undergo metal leaching and could be easily recovered and re-used (reused). | pt_BR |
dc.identifier.citation | SPEZIALI, M. G. et al. Air stable ligandless heterogeneous catalyst systems based on Pd and Au supported in SiO2 and MCM-41 for Suzuki–Miyaura cross-coupling in aqueous médium. Applied Catalysis. A, General, v. 462-46, p. 39-45, 2013. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0926860X1300238X>. Acesso em: 02 fev. 2015. | pt_BR |
dc.identifier.doi | https://doi.org/10.1016/j.apcata.2013.04.034 | |
dc.identifier.issn | 0926-860X | |
dc.identifier.uri | http://www.repositorio.ufop.br/handle/123456789/5131 | |
dc.language.iso | en_US | pt_BR |
dc.rights.license | This article is published under the terms of the Creative Commons Attribution-NonCommercial-No Derivatives License (CC BY NC ND). Fonte: o próprio artigo. | pt_BR |
dc.subject | Suzuki cross-coupling | pt_BR |
dc.subject | Palladium and Palladium-gold catalysts | pt_BR |
dc.subject | Mesoporous molecular sieves | pt_BR |
dc.title | Air stable ligandless heterogeneous catalyst systems based on Pd and Au supported in SiO2 and MCM-41 for Suzuki–Miyaura cross-coupling in aqueous médium. | pt_BR |
dc.type | Artigo publicado em periodico | pt_BR |
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