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  • 2017 OPJ-OSA Joint Symposia on Nanophotonics and Digital Photonics
  • OSA Technical Digest (online) (Optica Publishing Group, 2017),
  • paper 30pON10

Plasmonic Enhancement of Electrocatalytic Oxygen Reduction Reaction on Octahedral Au@Pt Nanoparticles

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Abstract

Octahedral Au nanoparticles (NPs), prepared via polyol process, were used as a core for the preparation of Au-core/Pt-shell (Au@Pt) NPs. The deposition of Pt shell layer was carried out by under-potential deposition of Cu monolayer, followed by the galvanic replacement of Cu by Pt. The visible-light irradiation to Au@Pt NPs enlarged a cathodic current for oxygen reduction reaction, suggesting that the electrocatalytic activity of Pt layer was enhanced by the excitation of localized surface plasmon resonance of octahedral Au-core.

© 2017 Optical Society of Japan

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