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Application of surface alloy layer to fuel cell catalyst

Research Project

Project/Area Number 24651131
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Nanomaterials/Nanobioscience
Research InstitutionChiba University

Principal Investigator

NAKAMURA Masashi  千葉大学, 工学(系)研究科(研究院), 助教 (70348811)

Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords燃料電池 / 表面X線回折 / 走査型トンネル顕微鏡 / 表面合金 / 電極反応 / 貴金属 / 電極触媒
Research Abstract

Surface structure of a PtSn surface alloy on Pt(111), activating the ethanol oxidation reaction, was determined by using in-situ scanning tunneling microscopy (STM) and X-ray diffraction. At the Sn coverage lower than 0.23, ordered structure of the PtSn alloy layer were observed by STM in perchloric acid. The superstructure with small domain size are formed at the Sn coverage = 0.23, which promotes the catalytic activity for the ethanol oxidation reaction with a high durability. X-ray structural analysis shows that penetration of Sn to subsurface was less than 1 %; PtSn alloy layer is mainly formed the surface layer of Pt(111). Sn atoms in the PtSn alloy layer protrude by 0.02 nm from the first Pt layer similar to the surface structure of Pt3Sn(111).

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (10 results)

All 2013 2012 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (6 results) Remarks (1 results)

  • [Journal Article] Ethanol Oxidation on Well-Ordered PtSn Surface Alloy on Pt(111) Electrode2013

    • Author(s)
      Masashi Nakamura, Risa Imai, Naoto Otsuka, Nagahiro Hoshi, Osami Sakata
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 117 Issue: 35 Pages: 18139-18143

    • DOI

      10.1021/jp406516v

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Interfacial structure of Co porphyrins on Au(111) electrode : Interaction of porphyrin molecules with substrate2012

    • Author(s)
      M. Nakamura、R. Imai, N. Hoshi, O. Sakata
    • Journal Title

      Surf. Sci.

      Volume: 606 Issue: 19-20 Pages: 1560-1564

    • DOI

      10.1016/j.susc.2012.06.005

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Amemiya, 1D Hydrogen Bond Chain on Pt(211) Stepped Surface Observed by O K-NEXAFS Spectroscopy2012

    • Author(s)
      O.Endo, M. Nakamura, R. Sumii, K
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 116 Issue: 26 Pages: 13980-13984

    • DOI

      10.1021/jp302509k

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Pt修飾したNi単結晶電極上の酸素還元反応2013

    • Author(s)
      木村広人、中村将志、星永宏
    • Organizer
      2013年電気化学会秋季大会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2013-09-27
    • Related Report
      2013 Final Research Report
  • [Presentation] X線回折によるSn/Pt(111)表面合金電極の構造解析と耐久性評価2013

    • Author(s)
      大塚尚登、中村将志、星永宏、坂田修身
    • Organizer
      2013年電気化学会秋季大会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2013-09-27
    • Related Report
      2013 Final Research Report
  • [Presentation] Pt修飾したNi単結晶電極上の酸素還元反応活性2013

    • Author(s)
      木村広人,中村将志,星永宏
    • Organizer
      電気化学秋季大会
    • Place of Presentation
      東京工業大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] X線回折によるSn/Pt(111)表面合金電極の構造解析と耐久性評価2013

    • Author(s)
      大塚尚登,中村将志,星永宏,坂田修身
    • Organizer
      電気化学秋季大会
    • Place of Presentation
      東京工業大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] Au単結晶電極上に電析したPtPd合金層のギ酸酸化反応2013

    • Author(s)
      山本大介,中村将志,星永宏
    • Organizer
      電気化学会第80回大会
    • Place of Presentation
      東北大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Effect of alkali metal cations on the surface oxidation of Pt(111)2012

    • Author(s)
      M. Nakamura, Y. Nakajima, N. Hoshi, O. Sakata
    • Organizer
      29th European Conference on Surface Science
    • Place of Presentation
      Edinburgh, UK
    • Related Report
      2012 Research-status Report
  • [Remarks]

    • URL

      http://chem.tf.chiba-u.jp/gacb13/

    • Related Report
      2013 Final Research Report

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Published: 2013-05-31   Modified: 2019-07-29  

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