title: Core/shell Pd/FePt nanoparticles as an active and durable catalyst for the oxygen reduction reaction.
abstract: We report a unique synthesis of core/shell Pd/FePt nanoparticles (NPs) and their catalysis of the oxygen reduction reaction (ORR). The uniform FePt shell is formed by controlled nucleation of Fe(CO)(5) in the presence of a Pt salt and Pd NPs at designated reaction temperatures. The Pd/FePt NPs show FePt shell-dependent catalytic properties, and those having a 1 nm FePt shell exhibit a drastic increase in durability and activity (15 times more active with a 140 mV gain in onset potential in comparison with those having a 3 nm coating). These Pd/FePt NPs are promising new catalysts for practical fuel cell applications.
authors.affiliation: Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA.
authors.forename: Vismadeb
authors.initials: V
authors.lastname: Mazumder
authors.forename: Miaofang
authors.initials: M
authors.lastname: Chi
authors.forename: Karren L
authors.initials: KL
authors.lastname: More
authors.forename: Shouheng
authors.initials: S
authors.lastname: Sun