Scientific Achievement
Controlled growth of 20-sided Au-Pd nanoicosahedral particles exhibiting 2X enhanced catalytic activity.
Significance and Impact
The Au-Pd core-shell icosahedra with terraced Pd-rich shells and plasmonic Au-rich cores synergistically enhance the catalytic performance in ethanol electro-oxidation and nitrophenol reduction.
Research Details
– A one-step aqueous method for the controlled growth of sub-20 nm alloy and core-shell Au-Pd icosahedra.
– Icosahedra of either Au-Pd alloys or Au-Pd cores with ultrathin terraced Pd-shells were achieved via swapping of the halide ions [Br-]/[Cl-] during growth.
– The core-shell morphology was resolved using high X-ray collection efficient STEM-EDS.
S.-C. Hsu, Brian T. Sneed et al. Nano Lett. 16, 5514-5520 (2016). DOI: 10.1021/acs.nanolett.6b02005