Palladium nanoparticles stabilized by novel choline-based ionic liquids in glycerol applied in hydrogenation reactions
Résumé
Palladium nanoparticles stabilized by choline-based ionic liquids in glycerol were prepared from Pd(II) precursors by simply heating at 80 °C under argon; in this process, the water present in the ionic liquid was found to be the responsible for the reduction of Pd(II) into zero-valent palladium species. Palladium nanoparticles were fully characterized in both liquid phase and solid state. The as-prepared metal nanoparticles exhibited remarkable catalytic activity in hydrogenation processes for a significant variety of functional groups (alkenes, alkynes, nitro derivatives, benzaldehydes, aromatic ketones). Highlights Palladium nanoparticles in glycerol stabilized by novel choline-based ionic liquids. Characterization of palladium nanoparticles both in solid and liquid phase. Palladium nanoparticles showing high catalytic activity in hydrogenation reactions. Selective hydrogenations for non-conjugated alkynes. Efficient reduction of carbonyl derivatives.
Origine : Fichiers produits par l'(les) auteur(s)
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