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Study on local structural distortion affecting ion diffusion in fuel cell-battery materials by neutron diffraction

Research Project

Project/Area Number 16K06784
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Structural/Functional materials
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

IGAWA Naoki  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力科学研究所 物質科学研究センター, 研究主幹 (60354833)

Co-Investigator(Kenkyū-buntansha) 樹神 克明  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力科学研究所 物質科学研究センター, 研究主幹 (10313115)
田口 富嗣  国立研究開発法人量子科学技術研究開発機構, 高崎量子応用研究所 東海量子ビーム応用研究センター, 上席研究員(定常) (50354832)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords燃料電池材料 / 局所乱れ / 結晶構造 / 中性子回折 / 燃料電池 / 構造・機能材料 / 水素 / 局所構造解析
Outline of Final Research Achievements

Proton conductor, BaSn0.5In0.5O2.75 as a solid-state electrolyte for fuel cell was analyzed by neutron diffraction / Rietveld method to obtain the average crystal structure, and analyzed by neutron atomic pair correlation function (PDF) analysis method to obtain the local structure. We estimated the local structural distortion by comparing those two structures. The PDF indicated that this material can be fitted well by the structural model with a tetragonal phase, P4/mmm from the original-cubic structure and displacements of Ba and oxygen from their ideal sites were observed below the maximum distance between a pair of atoms, rmax of 0.6 nm, and as rmax increases, those distortion are released and that structure changes to the original-cubic structure. As mentioned above, it became possible to analyze crystal distortion using the neutron diffraction through this subject.

Academic Significance and Societal Importance of the Research Achievements

中性子が有する軽元素探知能力を活かし、さらにリートベルト/MEM法と結晶原子対相関関数解析法を併用して、これまで解析が困難であった燃料電池材料中の局所的な結晶乱れを明らかにしたことは、燃料電池材料中のイオン伝導と結晶乱れの関係を解明する上での貴重な一歩と言える。本手法を通して、今後の燃料電池材料の性能向上を目指した材料設計に大きな貢献をもたらすものと期待できる。さらに、本電池材料に限らず水素やLi などの軽元素が関与する多くの機能材料についても、それらのイオンに起因する機能発現現象を解明するための有効な解析手段となると期待できる

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (19 results)

All 2018 2017 2016

All Journal Article (7 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (12 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] Local Disorder in Proton Conductor BaSn<sub>0.5</sub>In<sub>0.5</sub>O<sub>2.75</sub> Analyzed by Neutron Diffraction/ Atomic Pair Distribution Function2018

    • Author(s)
      Igawa Naoki、Kodama Katsuaki、Taguchi Tomitsugu、Yoshida Yukihiko、Matsukawa Takeshi、Hoshikawa Akinori、Ishigaki Toru
    • Journal Title

      Transactions of the Materials Research Society of Japan

      Volume: 43 Issue: 6 Pages: 329-332

    • DOI

      10.14723/tmrsj.43.329

    • NAID

      130007539695

    • ISSN
      1382-3469, 2188-1650
    • Year and Date
      2018-12-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Strain Measurement in Ti Layers of CFPR/Ti Laminates by Synchrotron X-ray Diffraction2018

    • Author(s)
      秋田貢一, 中谷隼人, 荻原慎二, 菖蒲敬久, 城鮎美, 井川直樹, 下条豊
    • Journal Title

      SPring-8/SACLA Research Report

      Volume: 6 Issue: 1 Pages: 105-108

    • DOI

      10.18957/rr.6.1.105

    • NAID

      130007969413

    • ISSN
      2187-6886
    • Year and Date
      2018-01-25
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-energy spin fluctuation in low-Tc iron-based superconductor LaFePO0.92018

    • Author(s)
      Ishikado Motoyuki、Shamoto Shin-ichi、Kodama Katsuaki、Kajimoto Ryoichi、Nakamura Mitsutaka、Hong Tao、Mutka Hannu
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 16343-16343

    • DOI

      10.1038/s41598-018-33878-x

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ion irradiation-induced novel microstructural change in silicon carbide nanotubes2018

    • Author(s)
      Taguchi Tomitsugu、Yamamoto Shunya、Ohba Hironori
    • Journal Title

      Acta Materialia

      Volume: 154 Pages: 90-99

    • DOI

      10.1016/j.actamat.2018.05.030

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In Situ Time-Resolved XAFS Studies on Laser-Induced Particle Formation of Palladium Metal in an Aqueous/EtOH Solution2018

    • Author(s)
      Saeki Morihisa、Matsumura Daiju、Yomogida Takumi、Taguchi Tomitsugu、Tsuji Takuya、Saitoh Hiroyuki、Ohba Hironori
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 123 Issue: 1 Pages: 817-824

    • DOI

      10.1021/acs.jpcc.8b09532

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inter Atomic Force Constants of β-PbF2 from Diffuse Neutron Scattering Measurement2017

    • Author(s)
      Xianglian, W. Bao, T. Guo, P. Li, T. Sakuma, N. Igawa
    • Journal Title

      International Journal of Innovation in Science and Mathematics

      Volume: 5 Pages: 165-167

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Local Structural Analysis of Half-Metallic Ferromagnet CrO2.2016

    • Author(s)
      K. Kodama, K. Ikeda, M. Isobe, H. Takeda, M. Itoh, Y. Ueda, S. Shamoto, and T. Otomo
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 85 Issue: 9 Pages: 094709-094709

    • DOI

      10.7566/jpsj.85.094709

    • NAID

      210000134092

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Local structure of BaSn0.5In0.5O2.75 as electrolyte for solid oxide fuel cell analyzed by EXAFS and neutron powder diffraction2018

    • Author(s)
      井川直樹, 樹神克明, 田口富嗣, 辻卓也, 松村大樹, 吉井賢資
    • Organizer
      第28回日本MRS年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] J-PARC高強度全散乱装置NOVAを用いた磁気PDF解析法の開発2018

    • Author(s)
      樹神克明, 本田孝志, 池田一貴, 社本真一, 大友李哉
    • Organizer
      日本中性子科学会第18回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Ion irradiation-induced novel microstructural change in SiC nanotubes2018

    • Author(s)
      田口 富嗣, 山本春也, 大場弘則
    • Organizer
      第28回日本MRS年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] イオン照射TEMその場観察法によるSiCナノチューブの微細組織変化2018

    • Author(s)
      田口 富嗣, 山本春也, 大場弘則
    • Organizer
      日本顕微鏡学会第74回学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Local Disorder in Proton Conductor BaSn0.5In0.5O2.75 Analyzed by Neutron Diffraction/ Atomic Pair Distribution Function2017

    • Author(s)
      N. Igawa, K. Kodama, T. Taguchi, Y. Yoshida, T. Matsukawa, A. Hoshikawa, T. Ishigaki
    • Organizer
      15th International Conference on Advanced Materials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Synthesis of New-structured Carbon Nanomaterials Inside Silicon Carbide Nanotubes by Ion Irradiation-induced Changes2017

    • Author(s)
      T. Taguchi, S. Yamamoto, H. Ohba
    • Organizer
      15th International Conference on Advanced Materials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Local Structural Analysis on the Parent Compound of Iron-Based Superconductor PrFeAsO by Atomic Pair Distribution Function2017

    • Author(s)
      K. Kodama, M. Ishigaki, K. Ikeda, S, Shamoto, T. Otomo
    • Organizer
      15th International Conference on Advanced Materials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Magnetic and Crystal Structure of Ba3Co1-xCaxRu2O92017

    • Author(s)
      A. Horie, Y. Yasui, T. Igarashi, T. D. Yamamoto, K. Misawa, I. Terasaki, T. Matsukawa, A. Hoshikawa, T. Ishigaki, N. Igawa
    • Organizer
      62nd Annual Conf. on Magnetism and Magnetic Materials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Magnetic Properties of RCrTiO5 (R=Rare Earth Elements)2017

    • Author(s)
      Y. Yasui, T. Miyamoto, S. Kore, I. Terasaki, M. Akaki, M. Hagowara, T. Matsukawa, Y. Yoshida, A. Hoshikawa, T. Ishigaki, N. Igawa
    • Organizer
      International Conference on Strongly Correlated Electron Systems
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 中性子回折法を用いた燃料電池用固体電解質BaSn0.5In0.5O2.75の平均および局所構造解析2016

    • Author(s)
      井川 直樹, 樹神 克明, 田口 富嗣, 吉田 幸彦, 松川 健, 星川 晃範, 石垣 徹
    • Organizer
      第26回日本MRS年次大会
    • Place of Presentation
      横浜市開港記念会館(神奈川県横浜市)
    • Year and Date
      2016-12-19
    • Related Report
      2016 Research-status Report
  • [Presentation] 結晶PDF解析及びMEM解析を用いたプロトン伝導性酸化物Ce1-xLaxO2-x/2の構造解析2016

    • Author(s)
      猿渡 康治, 長崎 正雅, 樹神 克明, 井川 直樹, 石垣 徹
    • Organizer
      日本中性子科学会第16回年会
    • Place of Presentation
      名古屋大学(愛知県名古屋市)
    • Year and Date
      2016-12-01
    • Related Report
      2016 Research-status Report
  • [Presentation] フラストレートした一次元量子スピン系Cs2Cu2Mo3O12の磁気構造2016

    • Author(s)
      安井 幸夫, 藤村 明央, 大森 喜由, 井川 直樹, 松川 健, 吉田 幸彦, 星川 晃範, 石垣 徹
    • Organizer
      日本中性子科学会第16回年会
    • Place of Presentation
      名古屋大学(愛知県名古屋市)
    • Year and Date
      2016-12-01
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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