NAGIOS: RODERIC FUNCIONANDO

Highly active hydrogenation catalysts based on Pd nanoparticles dispersed along hierarchical porous silica covered with polydopamine as interfacial glue

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Highly active hydrogenation catalysts based on Pd nanoparticles dispersed along hierarchical porous silica covered with polydopamine as interfacial glue

dc.contributor.author	Ródenas, Miguel
dc.contributor.author	El Haskouri, Jamal
dc.contributor.author	Ros-Lis, José Vicente
dc.contributor.author	Marcos, María Dolores
dc.contributor.author	Amorós del Toro, Pedro José
dc.contributor.author	Úbeda Picot, M. Ángeles
dc.contributor.author	Pérez Plá, Francisco Fernando
dc.date.accessioned	2020-12-29T08:49:03Z
dc.date.available	2020-12-29T08:49:03Z
dc.date.issued	2020
dc.identifier.uri	https://hdl.handle.net/10550/76820
dc.description.abstract	New catalysts based on Pd(0) nanoparticles (Pd NPs) on a bimodal porous silica of the UVM-7/polydopamine (PDA) support have been synthesized following two preparative strategies based on the sequential or joint incorporation of two components of the composite (Pd and PDA). We analyzed the role played by the PDA as 'interfacial glue' between the silica scaffold and the Pd NPs. The catalysts were tested for the hydrogenation of 4-nitrophenol using (NEt4)BH4 as the hydrogenating agent. In addition to the palladium content, the characterization of the catalysts at the micro and nanoscale has highlighted the importance of different parameters, such as the size and dispersion of the Pd NPs, as well as their accessibility to the substrate (greater or lesser depending on their entrapment level in the PDA) on the catalytic efficiency. Staged sequential synthesis has led to better catalytic results. The most active Pd(0) centers seem to be Pd NPs of less than 1 nm on the PDA surface. The efficiency of the catalysts obtained is superior to that of similar materials without PDA. A comprehensive comparison has been made with other catalysts based on Pd NPs in a wide variety of supports. The TOF values achieved are among the best described in the literature.
dc.language.iso	eng
dc.relation.ispartof	Catalysts, 2020, vol. 10, num. 4, p. 449
dc.rights.uri	info:eu-repo/semantics/openAccess
dc.source	Ródenas, Miguel El Haskouri, Jamal Ros-Lis, José Vicente Marcos, María Dolores Amorós del Toro, Pedro José Úbeda Picot, M. Ángeles Pérez Plá, Francisco Fernando 2020 Highly active hydrogenation catalysts based on Pd nanoparticles dispersed along hierarchical porous silica covered with polydopamine as interfacial glue Catalysts 10 4 449
dc.subject	Materials nanoestructurats
dc.subject	Catalitzadors
dc.title	Highly active hydrogenation catalysts based on Pd nanoparticles dispersed along hierarchical porous silica covered with polydopamine as interfacial glue
dc.type	info:eu-repo/semantics/article
dc.date.updated	2020-12-29T08:49:04Z
dc.identifier.doi	https://doi.org/10.3390/catal10040449
dc.identifier.idgrec	142211