Multigrain platinum nanowires consisting of oriented nanoparticles anchored on sulfur-doped graphene as a highly active and durable oxygen reduction electrocatalyst

Md Ariful Hoque, Fathy M. Hassan, Drew Higgins, Ja Yeon Choi, Mark Pritzker, Shanna Knights, Siyu Ye, Zhongwei Chen

Research output: Contribution to journalArticlepeer-review

112 Citations (Scopus)

Abstract

(Graph Presented) 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.

Original languageEnglish
Pages (from-to)1229-1234
Number of pages6
JournalAdvanced Materials
Volume27
Issue number7
DOIs
Publication statusPublished - Feb 18 2015
Externally publishedYes

Keywords

  • Durability
  • Fuel cells
  • Oxygen reduction
  • Platinum nanowire
  • Sulfur-doped graphene

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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