Pd and Au Immobilized On Amine-Functionalized Magnetite Nanoparticles: A Novel and Highly Active Bimetallic Catalyst for Hydrogenation

A novel heterogeneous Au-Pd bimetallic catalyst stabilized by amine-functionalized magnetite nanoparticles was synthesized by anchoring palladium and gold by a facile one-pot template-free method combined with a metal adsorption?reduction procedure. A highly efficient and recyclable heterogeneous bimetallic catalyst exhibits excellent catalytic activity for various aromatic nitro compounds and unsaturated compounds to their corresponding products under a H2 atmosphere at room temperature . The catalyst was found to be highly stable and passes hot filtration test successfully. The catalyst was characterized by FTIR, AAS, XRD, SEM and TEM. In addition, the catalyst can be easily separated and recovered with an external permanent magnet, and the reuse experiment shows that it can be used consecutively five times without significant loss in catalytic activity.