Sub-nano-Pt cluster supported on graphene nanosheets for CO tolerant catalysts in polymer electrolyte fuel cells

Eunjoo Yoo, Tatsuhiro Okada, Tomoaki Akita, Masanori Kohyama, Itaru Honma, Junji Nakamura

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)

Abstract

The carbon monoxide (CO) tolerance performance of polymer electrode fuel cells (PEFCs) was studied for a catalyst composed of graphene nanosheets (GNS) with sub-nano-Pt clusters. The Pt catalysts supported on the GNS showed a higher CO tolerance performance in the hydrogen oxidation reaction (HOR), which was significantly different from that of platinum on carbon black (Pt/CB). It is proposed that the presence of the sub-nano-Pt clusters promotes the catalytic activity and that the substrate carbon material alters the catalytic properties of Pt via the interface interactions between the graphene and the Pt.

Original languageEnglish
Pages (from-to)110-115
Number of pages6
JournalJournal of Power Sources
Volume196
Issue number1
DOIs
Publication statusPublished - 2011 Jan 1
Externally publishedYes

Keywords

  • CO tolerance
  • Graphene nanosheet
  • Sub-nano-Pt clusters

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Sub-nano-Pt cluster supported on graphene nanosheets for CO tolerant catalysts in polymer electrolyte fuel cells'. Together they form a unique fingerprint.

Cite this