title: A General Approach To Fabricate Fe3O4 Nanoparticles Decorated with Pd, Au, and Rh: Magnetically Recoverable and Reusable Catalysts for Suzuki C-C Cross-Coupling Reactions, Hydrogenation, and Sequential Reactions.
abstract: A facile strategy has been explored for loading noble metals onto the surface of ferrite nanoparticles with the assistance of phosphine-functionalized linkers. Palladium loading is shown to occur with participation of both the phosphine function and the surface hydroxyl groups. Hybrid nanoparticles containing simultaneously Pd and Au (or Rh) are obtained by successive loading of metals. Similarly, ferrite nanoparticles decorated with Pd, Au, and Rh have also been formed by using the same strategy. The catalytic properties of the new nanoparticles are evidenced in processes such as reduction of 4-nitrophenol or hydrogenation of styrene. Besides, the sequential process involving a cross-coupling reaction followed by reduction of 1-nitrobiphenyl has been successfully achieved by employing Pd/Au decorated nanoferrite particles.
authors.affiliation: Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona (Spain), Fax: (+34) 934907725.
authors.forename: Ferran
authors.initials: F
authors.lastname: Gonzàlez de Rivera
authors.forename: Inmaculada
authors.initials: I
authors.lastname: Angurell
authors.forename: Marta D
authors.initials: MD
authors.lastname: Rossell
authors.forename: Rolf
authors.initials: R
authors.lastname: Erni
authors.forename: Jordi
authors.initials: J
authors.lastname: Llorca
authors.forename: Núria J
authors.initials: NJ
authors.lastname: Divins
authors.forename: Guillermo
authors.initials: G
authors.lastname: Muller
authors.forename: Miquel
authors.initials: M
authors.lastname: Seco
authors.forename: Oriol
authors.initials: O
authors.lastname: Rossell
mesh_terms: D002384:Catalysis; D005290:Ferric Compounds / Q000737:chemistry*; D006865:Hydrogenation; D053768:Metal Nanoparticles / Q000737:chemistry*; D015394:Molecular Structure; D009596:Nitrophenols / Q000737:chemistry*; D020058:Styrene / Q000737:chemistry*
chemical_list: D005290:Ferric Compounds; D009596:Nitrophenols; C000499:ferric oxide; D020058:Styrene; C024836:4-nitrophenol
keywords: ferrite; gold; nanoparticles; palladium; rhodium