Enhanced electrocatalytic activity of Pt subnanoclusters on graphene nanosheet surface

Eun Joo Yoo, Tatsuhiro Okata, Tornoki Akita, Masanori Kohyama, Junji Nakamura, Itaru Honma

Research output: Contribution to journalArticlepeer-review

987 Citations (Scopus)

Abstract

Graphene nanosheet (GNS) gives rise to an extraordinary modification to the properties of Pt cluster electrocatalysts supported on it. The Pt/GNS electrocatalyst revealed an unusually high activity for methanol oxidation reaction compared to Pt/carbon black catalyst. The Pt/GNS electrocatalyst also revealed quite a different characteristic for CO oxidation among the measured catalyst samples. It is found that Pt particles below 0.5 nm in size are formed on GNS, which would acquire the specific electronic structures of Pt, modifying its catalytic activities.

Original languageEnglish
Pages (from-to)2255-2259
Number of pages5
JournalNano Letters
Volume9
Issue number6
DOIs
Publication statusPublished - 2009 Jun 10
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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