Stable Bimetallic Gold–Platinum Nanoparticles Immobilized on Spherical Polyelectrolyte Brushes: Synthesis, Characterization, and Application for the Oxidation of Alcohols


  • We acknowledge financial support by the Deutsche Forschungsgemeinschaft, SFB 481, Bayreuth, and by BASF AG. This work was also supported by NanoCat, an International Graduate Program within the Elitenetzwerk Bayern. Supporting Information is available online from Wiley InterScience or from the authors.


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Homogeneous alloy nanoparticles as excellent catalysts. Spherical polyelectrolyte brushes can be used to generate Au-Pt alloy nanoparticles (see figure) that exhibit properties widely differing from the properties of the respective bulk alloys. The alloy nanoparticles are shown to be homogeneous solid solutions. Moreover, they are effective catalysts for the selective oxidation of alcohols to aldehydes and ketones.