Pt-decorated Au Nanoparticles: Highly Active Catalyst for Formic Acid Oxidation

摘要

Highly active Pt-decorated Au nanoparticles on carbon support was successfully synthesized based on successive reduction strategy. The electrocatalytic activity of this decorated structure toward formic acid oxidation unexpectedly increases despite the low amount of Pt being used. The enhancement is attributed to the less Pt ensemble sites that the decorated structure possesses (ensemble effect) and the increase in the Pt atom reactivity on Au nanocrystal (electronic effect).