A method
for the preparation of smooth deposits of Pt on Au nanorods
is described, involving sequential deposition steps with selective
blocking of surface sites that reduces Pt-on-Pt deposition. The Au–Pt
nanorods prepared by this method have higher long-term stability than
those prepared by standard Pt deposition. Electrochemical data show
that the resulting structure has more extended regions of Pt surface
and enhanced activity toward the carbon monoxide oxidation and oxygen
reduction reactions.
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