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Stable Bimetallic Gold–Platinum Nanoparticles Immobilized on Spherical Polyelectrolyte Brushes: Synthesis, Characterization, and Application for the Oxidation of Alcohols
Author(s) -
Schrinner Marc,
Proch Sebastian,
Mei Yu,
Kempe Rhett,
Miyajima Nobuyoshi,
Ballauff Matthias
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200702421
Subject(s) - bimetallic strip , materials science , polyelectrolyte , alloy , nanoparticle , catalysis , homogeneous , chemical engineering , platinum , characterization (materials science) , nanotechnology , organic chemistry , polymer , metal , composite material , metallurgy , chemistry , engineering , physics , thermodynamics
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.