One-pot synthesis of Pd–Pt@Pd core–shell nanocrystals with enhanced electrocatalytic activity for formic acid oxidation†
Abstract
Well-defined Pd–Pt@Pd core–shell nanocrystals with a Pd–Pt alloy core and a conformal Pd shell of ~2–3 nm were directly synthesized through a one-pot, aqueous solution approach without any preformed Pd or Pt seeds. These Pd–Pt@Pd core–shell nanocrystals show an enhanced electrocatalytic activity for formic acid oxidation compared with commercial Pd black.