Nanoarchitectonics and Catalytic Performance of Au–Pd Nanoflowers Supported on Fe₂O₃

Supported anisotropic bimetallic nanocrystals are attractive owing to their potential for novel catalytic applications. Au–Pd nanocrystals are expected to have higher catalytic activity for alcohol oxidation than Au nanocrystals. However, only a few studies have reported the application of anisotropic Au–Pd nanocrystals as alcohol-oxidation nanocatalysts. Support materials such as Al₂ O₃ and Fe₂ O₃ influence the catalytic activity of spherical Au nanoparticles. Thus, optimization of the support is expected to improve the catalytic activity of anisotropic Au–Pd nanocrystals. Herein, we report the synthesis and catalytic performances of Al₂O₃-and Fe₂O₃-supported Au and Au–Pd nanoflowers. Au₉₉–Pd₁ NFs supported on Fe₂O₃ exhibited the highest catalytic activity for 1-phenylethyl alcohol oxidation.