Synthesis and characterization of dendrimer templated supported bimetallic Pt-Au nanoparticles

Bimetallic dendrimer-stabilized nanoparticles (DSNs) are used to prepare supported Pt-Au catalysts within the bulk miscibility gap for this binary system. The transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), and infrared spectroscopy of adsorbed CO show that this preparation route results in NPs in which the two metals are intimately mixed and that the majority of the bimetallic NPs are smaller than 3 nm.