Polyhedral Bimetallic Alloy Nanocrystals Exclusively Bound by {110} Facets: Au-Pd Rhombic Dodecahedra

摘要

We have developed a facile one-pot synthesis of RD Au-Pd alloy NCs bound entirely by {110} facets. Formation of this unique structure was achieved through a kinetically controlled nucleation and growth process. The RD NCs exhibit higher SERS and electrocatalytic activities than {111}-faceted NPs. We expect that the exposed high-energy {110} surfaces of the NCs will promote their potential optical and catalytic applications, and the present work may be extendable to fabrication of other multicomponent metal NCs with desirable morphologies.