Atomic-Distribution-Dependent Electrocatalytic Activity of Au–Pd Bimetallic Nanocrystals


  • This work was supported by Basic Science Research Programs (2008-0062042, 2010-0029149), Future-based Technology Development Program (Nano Fields) (2009-0082640), and Pioneer Research Center Program (2009-0082813) through the National Research Foundation (NRF) funded by the Korean government (MEST).


original image

In the mix: Au–Pd alloy, Au@Pd core–shell, Pd, and Au nanocrystals (NCs) with an identical octahedral shape and with similar NC size were prepared to examine exclusively the effect of atomic distribution on the catalytic performance of NCs (see picture). The catalytic activities and stabilities toward formic acid oxidation highly depend on the atomic distribution in the NCs: Au–Pd alloy > Au@Pd core–shell > Pd ≫ Au NCs.