Oxygen reduction catalytic ability of platinum nanoparticles prepared by room-temperature ionic liquid-sputtering method

Tetsuya Tsuda, Kazuki Yoshii, Tsukasa Torimoto, Susumu Kuwabata

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43 Citations (Scopus)


Pt nanoparticles can be produced by a Pt sputtering method onto trimethyl-n-propylammonium bis((trifluoromethyl)sulfonyl)amide (Me3PrNTf2N) room-temperature ionic liquid (RTIL) without stabilizing agents. Pt nanoparticles obtained by the Pt sputtering method showed mean particle size of ca. 2.3-2.4 nm independently of sputtering time. A Pt-embedded glassy carbon electrode (Pt-GCE) consisting of the Pt-sputtered RTIL and a glassy carbon plate showed a favorable catalytic activity to oxygen reduction reaction. The catalytic ability was enhanced by Me3PrNTf2N modification of the Pt-GCE. In addition, carbon monoxide never absorbed onto the RTIL-modified Pt-GCE.

Original languageEnglish
Pages (from-to)5980-5985
Number of pages6
JournalJournal of Power Sources
Issue number18
Publication statusPublished - 2010 Sep 15



  • CO poisoning
  • Catalyst
  • Ionic liquid
  • Nanoparticle
  • Oxygen reduction reaction
  • Platinum

ASJC Scopus subject areas

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

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