Gold rush: Nanoporous palladium particles are decorated with gold clusters by galvanic replacement. The bimetallic pPd@Au nanocatalysts feature a well-defined nanoporous morphology coupled to a highly accessible surface area with segregated Au clusters, and are highly active in both benzyl alcohol oxidation and formic acid electro-oxidation. The amount of Au in the catalyst system determines the extent of alloying as well as the accessibility to catalytically more active Pd surface atoms.
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