Multistage electrodeposition of supported platinum-based nanostructured systems for electrocatalytic applications

Abstract

This work will describe our recent advances in room-temperature, sequential electrochemical deposition (in aqueous media) of nanostructured multimetallic systems of variable composition, and morphologies, directly onto carbon supports such as vitreous carbon or carbon paper (a typical gas-diffusion material in polymer electrolyte fuel cells). Unique automated electrosynthetic protocols are being investigated, to form bimetallic or trimetallic nanoparticles of Pt, Pd or Ru involving underpotential deposition (UPD) of Cu and redox-replacement steps by the NMs.