title: Multigrain platinum nanowires consisting of oriented nanoparticles anchored on sulfur-doped graphene as a highly active and durable oxygen reduction electrocatalyst.
abstract: Direct growth of multigrain platinum nanowires on sulfur-doped graphene (PtNW/SG) is reported. The growth mechanism, including Pt nanoparticle nucleation on SG, followed by nanoparticle attachment with orientation along the <111> direction is highlighted. PtNW/SG demonstrates improved Pt mass and specific activity compared with commercial catalysts toward oxygen reduction, in addition to dramatically improved stability through accelerated durability testing.
authors.affiliation: Department of Chemical Engineering, Waterloo Institute for Nanotechnology, Waterloo Institute of Sustainable Energy, University of Waterloo, 200 University Ave. W, Waterloo, ON, N2L 3G1, Canada.
authors.forename: Md Ariful
authors.initials: MA
authors.lastname: Hoque
authors.forename: Fathy M
authors.initials: FM
authors.lastname: Hassan
authors.forename: Drew
authors.initials: D
authors.lastname: Higgins
authors.forename: Ja-Yeon
authors.initials: JY
authors.lastname: Choi
authors.forename: Mark
authors.initials: M
authors.lastname: Pritzker
authors.forename: Shanna
authors.initials: S
authors.lastname: Knights
authors.forename: Siyu
authors.initials: S
authors.lastname: Ye
authors.forename: Zhongwei
authors.initials: Z
authors.lastname: Chen
keywords: durability; fuel cells; oxygen reduction; platinum nanowire; sulfur-doped graphene