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

Abstract

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 Al₂O₃ and Fe₂O₃ 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.

graphical abstract