Synthesis, characterization, and testing of Pt-NPG catalysts developed by de-alloying of electrodeposited Cu<sub>x</sub>Au<sub>(1−x)</sub> thin films

Synthesis, characterization, and testing of Pt-NPG catalysts developed by de-alloying of electrodeposited Cu_xAu_(1−x) thin films

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文摘

•: Nanoporous Au (NPG) is synthesized by de-alloying of electrodeposited Cu-Au thin films.
•: Composition independent critical potentials are observed in the de-alloying of said films.
•: The NPG in this work features three-fold larger surface area than Ag-Au counterparts.
•: Pt coatings render the NPG films highly active formic acid (FA) oxidation catalysts.
•: The developed Pt-NPG catalysts feature mass activity of 3–5 A/mg in FA oxidation.