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This work showed that chemically-synthesized gold nanoparticles, AuNPs, supported onto a Si (111) wafer electrode, can be selectively modified with a copper adlayer through underpotential deposition (upd) conditions, using both: potentiodynamic or potentiostatic electrochemical means. From analysis of experimental potentiostatic current density transients, it is shown that Cu upd onto the AuNPs occurs...
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