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Multigrain Platinum Nanowires Consisting of Oriented Nanoparticles Anchored on Sulfur‐Doped Graphene as a Highly Active and Durable Oxygen Reduction Electrocatalyst
Author(s) -
Hoque Md Ariful,
Hassan Fathy M.,
Higgins Drew,
Choi JaYeon,
Pritzker Mark,
Knights Shanna,
Ye Siyu,
Chen Zhongwei
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201404426
Subject(s) - materials science , electrocatalyst , platinum nanoparticles , platinum , nucleation , graphene , nanoparticle , nanowire , catalysis , nanotechnology , oxygen reduction , sulfur , chemical engineering , electrode , electrochemistry , metallurgy , organic chemistry , chemistry , engineering
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.