Metal ions selective-broadening technique

However, UPD method cannot be used to prepare Pt monolayer on other metals readily because of the mismatched redox potentials. Adzic and coworkers developed a method to deposit Pt monolayer on metal substrates indirectly [59c]. In this approach, a sacrificial copper monolayer is first deposited on a selected metal using the UPD method, followed by a galvanic replacement reaction by Pt ions (Fig. 2.13) [60]. This approach successfully broadens the possible metal elements that can be directly or indirectly deposited by this technique. 

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