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.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorSpeziali, Marcelo Gomes-
Autor(es): dc.creatorSilva, Anderson Gabriel Marques da-
Autor(es): dc.creatorMiranda, Débora Michelini Vaz de-
Autor(es): dc.creatorMonteiro, Adriano Lisboa-
Autor(es): dc.creatorDutenhefner, Patricia Alejandra Robles-
Data de aceite: dc.date.accessioned2019-11-06T13:33:48Z-
Data de disponibilização: dc.date.available2019-11-06T13:33:48Z-
Data de envio: dc.date.issued2015-04-17-
Data de envio: dc.date.issued2015-04-17-
Data de envio: dc.date.issued2013-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/5131-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/558147-
Descrição: dc.descriptionPalladium 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).-
Idioma: dc.languageen-
Direitos: dc.rightsThis article is published under the terms of the Creative Commons Attribution-NonCommercial-No Derivatives License (CC BY NC ND). Fonte: Rights Link < https://s100.copyright.com/AppDispatchServlet> Acesso em 03 d emarço 2015.-
Palavras-chave: dc.subjectSuzuki cross-coupling-
Palavras-chave: dc.subjectPalladium and Palladium-gold catalysts-
Palavras-chave: dc.subjectMesoporous molecular sieves-
Título: dc.titleAir stable ligandless heterogeneous catalyst systems based on Pd and Au supported in SiO2 and MCM-41 for Suzuki–Miyaura cross-coupling in aqueous médium.-
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