title: Multimetallic Au/FePt3 nanoparticles as highly durable electrocatalyst.
abstract: We report the design and synthesis of multimetallic Au/Pt-bimetallic nanoparticles as a highly durable electrocatalyst for the oxygen reduction reaction (ORR) in proton exchange membrane fuel cells. This system was first studied on well-defined Pt and FePt thin films deposited on a Au(111) surface, which has guided the development of novel synthetic routes toward shape-controlled Au nanoparticles coated with a Pt-bimetallic alloy. It has been demonstrated that these multimetallic Au/FePt(3) nanoparticles possess both the high catalytic activity of Pt-bimetallic alloys and the superior durability of the tailored morphology and composition profile, with mass-activity enhancement of more than 1 order of magnitude over Pt catalysts. The reported synergy between well-defined surfaces and nanoparticle synthesis offers a persuasive approach toward advanced functional nanomaterials.
authors: Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
authors: Chao
authors: C
authors: Wang
authors: Dennis
authors: D
authors: van der Vliet
authors: Karren L
authors: KL
authors: More
authors: Nestor J
authors: NJ
authors: Zaluzec
authors: Sheng
authors: S
authors: Peng
authors: Shouheng
authors: S
authors: Sun
authors: Hideo
authors: H
authors: Daimon
authors: Guofeng
authors: G
authors: Wang
authors: Jeffrey
authors: J
authors: Greeley
authors: John
authors: J
authors: Pearson
authors: Arvydas P
authors: AP
authors: Paulikas
authors: Goran
authors: G
authors: Karapetrov
authors: Dusan
authors: D
authors: Strmcnik
authors: Nenad M
authors: NM
authors: Markovic
authors: Vojislav R
authors: VR
authors: Stamenkovic