Controlled synthesis of magnetic Pd/Fe3O4 spheres via an ethylenediamine-assisted route
- 31 January 2012
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Dalton Transactions
- Vol. 41 (11) , 3204-3208
Abstract
A simple route based on time-dependent growth was employed to synthesize solid and hollow spheres of Pd/Fe3O4 nanocomposite. Transmission electron microscopic (TEM) imaging shows that the spheres are composed of nanocrystals with the solid spheres having a diameter of 533 nm whereas the hollow ones having a diameter of 520 nm and a shell thickness of 100 nm. An assembly-then-growth mechanism for the formation of the magnetic Pd/Fe3O4 nanocomposite has also been elucidated on the basis of the experimental observations. It is demonstrated that the Pd/Fe3O4 nanocomposite functions as a heterogeneous catalyst for the hydrogenation reaction of p-nitrophenol at room temperature under atmospheric pressure. Both the solid and hollow spheres possess unique magnetic properties so that they may be conveniently separated and recovered by a magnet after the catalytic reaction.Keywords
This publication has 40 references indexed in Scilit:
- Aqueous‐Phase Synthesis of Pt/CeO2 Hybrid Nanostructures and Their Catalytic PropertiesAdvanced Materials, 2010
- An Environmentally Benign, Highly Efficient Catalytic Reduction of p‐Nitrophenol using a Nano‐Sized Nickel Catalyst Supported on Silica‐AluminaAdvanced Synthesis & Catalysis, 2010
- One-Pot Template-Free Synthesis of Monodisperse and Single-Crystal Magnetite Hollow Spheres by a Simple Solvothermal RouteCrystal Growth & Design, 2008
- Preparation and characterization of α-FeOOH nanorods via an ethylenediamine-assisted routeMaterials Letters, 2006
- Synthesis of Amphiphilic Superparamagnetic Ferrite/Block Copolymer Hollow SubmicrospheresJournal of the American Chemical Society, 2006
- Reductive Hydrodechlorination of Trichloroethylene by Palladium-on-Alumina Catalyst: 13C Solid-State NMR Study of Surface Reaction PrecursorsLangmuir, 2006
- Monodisperse Magnetic Single‐Crystal Ferrite MicrospheresAngewandte Chemie International Edition, 2005
- Highly efficient catalysts for the hydrogenation of nitro-substituted aromaticsChemical Communications, 2005
- Effect of Catalysis on the Stability of Metallic Nanoparticles: Suzuki Reaction Catalyzed by PVP-Palladium NanoparticlesJournal of the American Chemical Society, 2003
- Shape-Controlled Synthesis of Gold and Silver NanoparticlesScience, 2002