The catalytic performance of bimetallic nanocrystals is highly dependent on their composition and architecture; however, the synthesis of such nanocrystals with controllable features is challenging on account of the difficulties in nucleating defined bimetallic phases.  Here, two new synthetic strategies to architecturally-defined bimetallic nanocrystals will be described wherein the co-reduction of two metal precursors is either i) directed through a seed-mediated method or ii) controlled by manipulation of the local ligand environment of the metal precursors.  These methods facilitate the synthesis of shape-controlled alloy nanocrystals as well as branched bimetallic nanostructures.  Mechanistic studies provide insight into the formation of these distinct nanocrystals, which are characterized by electron microscopy techniques and X-ray diffraction.  Potential catalytic applications will be discussed.

New synthetic strategies to architecturally-defined bimetallic nanocatalysts

244th National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.