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触媒反応の量子シミュレーションと新規触媒のデザイン

Research Project

Project/Area Number 10J00652
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Thin film/Surface and interfacial physical properties
Research InstitutionOsaka University

Principal Investigator

SISON EscanoMaryClare  大阪大学, 大学院・工学研究科, 特別研究員(PD)

Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 2012: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2011: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2010: ¥700,000 (Direct Cost: ¥700,000)
KeywordsEnergy / New catalyst / Hydrogen generation / Density functional / Monte Carlo / Borohydride / Oxygen / 反応性 / 金属触媒 / 解離吸着反応性 / 燃料電池
Research Abstract

平成24年度は、白金表面の対酸素反応性における磁性の影響、白金とオスミウムの比較による金属種による触媒作用の差異及び共吸着水分子と外部電場がテトラヒドロホウ酸イオンの吸着構造へ与える影響に関する理論的研究を行った。これらの研究は燃料電池電極触媒表面上での酸素分子とテトラヒドロホウ酸イオンの反応過程の解明を通じ、実用に供する燃料電池技術開発に寄与するものである。この研究における主な成果を要約すると以下の通りである。(1)強磁性遷移金属基盤上白金原子膜上の酸素還元反応密度汎関数理論に基づく第一原理計算手法とモンテカルロ法を組み合わせ、常磁性純白金表面上と遷移金属基盤上の強磁性白金原子膜上での酸素還元反応について調査している。また、遷移金属基盤上の白金原子膜のキュリー温度は室温よりもかなり高い事も計算で確認し、広い温度範囲で高い反応性が維持できることを明らかにした。(2)テトラヒドロホウ酸イオンの脱水素反応密度汎関数理論に基づく第一原理計算手法を援用し、実験から推測されていた白金表面上でのテトラヒドロホウ酸イオンの酸化反応の初期過程(BH4ad→BHad3Had)を確認し、テトラヒドロホウ酸イオンの解離作用の起源を調査している。その結果、白金表面上でテトラヒドロホウ酸イオンは解離吸着する一方、比較対象として調査したオスミウム表面上では解離せず分子状吸着することを示している。特にカナダ・ブリティッシュコロンビア大学の実験研究者と共同研究を行っており、協力体制をする事ができた。これらの成果をまとめ注目度の高い学術雑誌であるChemical Physics Letters,Dalton Transactions等に出版した。この研究成果は「第53回真空に関する連合講演会」において発表賞を受賞した。

Report

(3 results)
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (27 results)

All 2013 2012 2011 2010

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (17 results) Book (1 results)

  • [Journal Article] Molecular oxygen adsorption on ferromagnetic platinum2013

    • Author(s)
      Mary Clare Sison Escano, Nguyen Tien Quang, Hideaki Kasai
    • Journal Title

      Chemical Physics Letters

      Volume: 555 Pages: 125-125

    • DOI

      10.1016/j.cplett.2012.10.091

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structure and stability of borohydride on Au(111) and AU_3M(111) (M:Cr, Mn, Fe, Co, Ni) surfaces2013

    • Author(s)
      Ryan Arevalo, Mary Clare Sison Escano, Andrew Wang, Hideaki Kasai
    • Journal Title

      Dalton Transactions

      Volume: 42 Pages: 770-770

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A theoretical study of structure and stability of borohydride on 3d transition metals2012

    • Author(s)
      Ryan L. Arevalo, Mary Clare Sison Escano, Iod Gyenge, Hideaki Kasai
    • Journal Title

      Surface Science

      Volume: 606 Pages: 1954-1954

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surface magnetism in O_2 dissociation2011

    • Author(s)
      Fuji Kunisada, Mary Clare Sison Escano, Hideaki Kasai
    • Journal Title

      Journal of Physics : Condensed Matter

      Volume: 23 Issue: 39 Pages: 394207-394207

    • DOI

      10.1088/0953-8984/23/39/394207

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Non-activated OOH dissociation on Pt-alloys2011

    • Author(s)
      Wahyu Lahyanto, Mary Clare Sison Escano, Ryan Arevalo, Hideaki Kasai
    • Journal Title

      E-journal of Nanoscience and Technology

      Volume: 9 Pages: 352-352

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of band gap formation in graphene by Si impurities : local bonding interaction rules2011

    • Author(s)
      Mary Clare Sison Escano, Nguyen Tien Quang, Hideaki Kasai
    • Journal Title

      Chemical Physics Letters

      Volume: 85 Issue: 1-3 Pages: 515-515

    • DOI

      10.1016/j.cplett.2011.08.087

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reactivity descriptors of borohydride interaction on metal surfaces2011

    • Author(s)
      Mary Clare Sison Escano, Elod Gyenge, Ryan Arevalo, Hideaki Kasai
    • Journal Title

      Journal of Physical Chemistry C

      Volume: 115 Issue: 40 Pages: 19883-19883

    • DOI

      10.1021/jp207768e

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] First principles study on the adsorption and dehydrogenation of borohydride on Mn(111)2011

    • Author(s)
      Ryan L.Arevalo, Mary Clare Sison Escano, Hideaki Kasai
    • Journal Title

      E-Journal of Surface Science and Nanotechnology

      Volume: 9 Pages: 257-257

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pt/Cr and Pt/Ni catalysts for oxygen reduction reaction : To alloy or not to alloy?2011

    • Author(s)
      Mary Clare Sison Escano, Elod Gyenge, Hiroshi Nakanishi, Hideaki Kasai.
    • Journal Title

      Journal of Nanoscience and Nanotechnology

      Volume: 11 Pages: 2944-2944

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Controlling oxidation on Pt by spin manipulation2012

    • Author(s)
      Mary Clare Sison Escano, Tien Quang Nguyen, Hiroshi Nakanishi, Hideaki Kasai
    • Organizer
      Nanotech 2012
    • Place of Presentation
      California, USA(招待講演)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Controlling oxidation on platinum by spin manipulation2012

    • Author(s)
      Mary Clare Sison Escano, Tien Quang Nguyen, Hiroshi Nakanishi, Hideaki Kasai
    • Organizer
      6th International Fuel Cell Workshop
    • Place of Presentation
      Yamanashi, Japan(招待講演)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Oxygen adsorption on ferromagnetic platinum2012

    • Author(s)
      Mary Clare Sison Escano, Tien Quang Nguyen, Hiroshi Nakanishi, Hideaki Kasai
    • Organizer
      29th European Conference on Surface Science
    • Place of Presentation
      Edinburgh, UK
    • Related Report
      2012 Annual Research Report
  • [Presentation] Effects of spin-polarization of Pt on oxygen dissociative adsorption2012

    • Author(s)
      Mary Clare Sison Escano, Tien Quang Nguyen, Hiroshi Nakanishi, Hideaki Kasai
    • Organizer
      International Symposium on Computics:Quantum Simulation and Design
    • Place of Presentation
      Osaka, Japan
    • Related Report
      2012 Annual Research Report
  • [Presentation] Changes in borohydride structures with respect to catalyst (Pt vs Os), water adsorption and applied electric field2012

    • Author(s)
      Mary Clare Sison Escano, Elod Gyenge, Ryan Arevalo, Hideaki Kasai
    • Organizer
      International Symposium on Metal-Hydrogen Systems
    • Place of Presentation
      Kyoto, Japan(招待講演)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Changes in borohydride structures with respect to catalyst (Pt vs Os), water adsorption and applied electric field2012

    • Author(s)
      Mary Clare Sison Escano, Elod Gyenge, Ryan Arevalo, Hideaki Kasai
    • Organizer
      International Symposium on Atomically Controlled Fabrication Technology
    • Place of Presentation
      Osaka, Japan
    • Related Report
      2012 Annual Research Report
  • [Presentation] Spin-effects in metal surface reaction: O2 on ferromagnetic Pt/M2012

    • Author(s)
      Mary Clare Sison Escano, Tien Quang Nguyen, Hiroshi Nakanishi, Hideaki Kasai
    • Organizer
      53rd Annual Symposium of Vacuum Society of Japan
    • Place of Presentation
      Kobe, Japan
    • Related Report
      2012 Annual Research Report
  • [Presentation] Theoretical and electrochemical approaches to borohydride oxidation2011

    • Author(s)
      Mary Clare Sison Escano, Elod Gyenge, Ryan Arevallo, Hideaki Kasai
    • Organizer
      Theoretical and Electrochemical Approaches to Fuel Cell
    • Place of Presentation
      University of British Columbia, Canada
    • Year and Date
      2011-11-14
    • Related Report
      2011 Annual Research Report
  • [Presentation] Molecular and Electronic Tuning of Si/Carbon Hybrid Systems2011

    • Author(s)
      Mary Clare Sison Escano, Tien Quang Nguyen, Hideaki Kasai
    • Organizer
      First JSMS (Japan Society of Mechanical Engineer) Symposium on Multiscale Materials Modeling
    • Place of Presentation
      Osaka University, Japan
    • Related Report
      2011 Annual Research Report
  • [Presentation] Oxygen Dissociation on Metal-oxide supported Pt cluster2011

    • Author(s)
      Tien Quang Nguyen, Mary Clare Sison Escano, Hideaki Kasai
    • Organizer
      4^<th> International Symposium on Atomically Controlled Fabrication Technology
    • Place of Presentation
      Osaka University Nakanoshima Center, Japan
    • Related Report
      2011 Annual Research Report
  • [Presentation] Spin effects in metal surface reactions : O_2 on ferromagnetic Pt2011

    • Author(s)
      Mary Clare Sison Escano, Tien Quang Nguyen, Hiroshi Nakanishi, Hideaki Kasai
    • Organizer
      Japan-Croatia Workshop on Material Science
    • Place of Presentation
      Institute of Physics, Zagreb、Croatia
    • Related Report
      2011 Annual Research Report
  • [Presentation] Spin effects in metal surface reactions : O_2 on ferromagnetic Pt2011

    • Author(s)
      Mary Clare Sison Escano, Tien Quang Nguyen, Hiroshi Nakanishi, Hideaki Kasai
    • Organizer
      AVS 58th International Symposium and Exhibition
    • Place of Presentation
      Nashville Convention, Tennessee USA
    • Related Report
      2011 Annual Research Report
  • [Presentation] Pt/Cr and Pt/Ni catalysts for oxygen reduction reaction : To alloy or not to alloy?2010

    • Author(s)
      Mary Clare Sison Escano, Elod Gyenge, Hiroshi Nakanishi, Hideaki Kasai
    • Organizer
      3^<rd> International Conference on Nanospintronics Design and Realization and International Conference on Core Research and Engineering Science of Advanced Materials
    • Place of Presentation
      Osaka, Japan
    • Year and Date
      2010-06-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] Enhancing gas bimetallic surface reaction via spin manipulation2010

    • Author(s)
      Mary Clare Sison Escano, Hideaki Kasai
    • Organizer
      27^<th> European Conference on Surface Science
    • Place of Presentation
      Martini Plaza Groningen, Netherlands.
    • Related Report
      2010 Annual Research Report
  • [Presentation] Electronic factors governing reactivity of bimetallic surface to oxygen.2010

    • Author(s)
      Mary Clare Sison Escano, Hideaki Kasai
    • Organizer
      13^<th> International Conference on Theoretical Aspects of Catalysis
    • Place of Presentation
      Ichinobo Hotel, Matsushima, Japan
    • Related Report
      2010 Annual Research Report
  • [Presentation] Enhancing gas bimetallic surface reaction via spin manipulation2010

    • Author(s)
      Mary Clare Sison Escano, Hideaki Kasai
    • Organizer
      51^<th> Annual Symposium of Vacuum Society of Japan
    • Place of Presentation
      Osaka University, Japan
    • Related Report
      2010 Annual Research Report
  • [Presentation] Enhancing O_2 activation on metal surface via spin manipulation2010

    • Author(s)
      Mary Clare Sison Escano, Hideaki Kasai
    • Organizer
      3rd International Symposium Atomically Controlled Fabrication Technology
    • Place of Presentation
      Nakanoshima Center, Osaka, Japan
    • Related Report
      2010 Annual Research Report
  • [Book] Nova Publishing2012

    • Author(s)
      Tien Quang Nguyen, Mary Clare Sison Escano, Hideaki Kasai
    • Publisher
      Porphyrins : Chemistry, Properties and Applications
    • Related Report
      2011 Annual Research Report

URL: 

Published: 2010-12-03   Modified: 2024-03-26  

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