Ordered intermetallic PtFe@Pt core–shell nanoparticles supported on carbon nanotubes with superior activity and durability as oxygen reduction reaction electrocatalysts†
Abstract
Carbon nanotubes supported PtFe@Pt core–shell nanoparticles with ordered L10 intermetallic PtFe cores and approximately three atomic layers of Pt shells have been successfully synthesized. As a result of the contracted lattice and the unique core–shell structure, PtFe@Pt/CNT exhibited superior catalytic activity and significantly improved durability towards the oxygen reduction reaction.