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Oxygen storage properties of oxide solid solutions with disordered oxide ion vacancies

Research Project

Project/Area Number 18K05276
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 36010:Inorganic compounds and inorganic materials chemistry-related
Research InstitutionKochi University

Principal Investigator

Fujishiro Fumito  高知大学, 教育研究部自然科学系理工学部門, 講師 (90546269)

Co-Investigator(Kenkyū-buntansha) 大石 昌嗣  徳島大学, 大学院社会産業理工学研究部(理工学域), 准教授 (30593587)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords酸素貯蔵物質 / ペロブスカイト酸化物 / 熱重量ー示差熱分析 / X線吸収分光 / ペロブスカイト型酸化物 / 熱重量‐示差熱分析 / in situ XAFS測定 / 軟X線吸収分光測定 / ペロブスカイト構造 / 遷移金属イオン / in situ XAFS / 熱重量測定 / XAFS測定 / 酸素欠損 / 機能性セラミックス / 熱重量-示差熱分析 / X線吸収分光
Outline of Final Research Achievements

SrFe1-xMexO3-δ samples were prepared by a substitution of 3d elements into Fe site of SrFeO3-δ that has a regularly arranged oxide ion vacancies. The obtained samples were assigned as a cubic perovskite phase with disordered vacancy arrangement. The samples substituted with Mn and Co had a large solubility limit of x = 0.6, and the oxygen absorption/desorption properties were significantly changed by the substitution element. In addition, although A-site ions in the perovskite phase could not contribute to the valence change of B-site ions, the A-site element governed the structural distortion and the phase transition when being reduction.

Academic Significance and Societal Importance of the Research Achievements

酸素貯蔵物質は、環境・エネルギー分野への応用が期待されている機能性セラミックスの一つで、酸素吸収放出特性の向上に向けた本物質が示す遷移金属イオンの酸化還元特性の理解が望まれている。本研究では、2種類の遷移金属を含む固溶体酸化物を系統的に合成して酸素吸収放出特性を調査し、Bサイトへ混合する元素種によって酸化還元特性が変化すること、また、価数変化には直接関係しないAサイトの元素種が酸素放出における構造歪や相変化を支配していることを明らかにした。これらの知見は、新たな酸素貯蔵物質創製における設計指針の一つとして重要な情報を与える。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (12 results)

All 2021 2020 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (8 results)

  • [Journal Article] Relationship among the local structure, chemical state of Fe ions in Fe-O polyhedra, and electrical conductivity of cubic perovskite Ba1?Sr Fe0.9In0.1O3-δ with varying number of oxide ion vacancies2021

    • Author(s)
      Fujishiro Fumito、Sasaoka Chinatsu、Oishi Masatsugu、Hashimoto Takuya、Shozugawa Katsumi、Matsuo Motoyuki
    • Journal Title

      Materials Research Bulletin

      Volume: 133 Pages: 111063-111063

    • DOI

      10.1016/j.materresbull.2020.111063

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In situ evaluation of the electronic/local structure in B-site mixed perovskite-type oxide SrFe0.6Mn0.4O3-δ2021

    • Author(s)
      Oishi Masatsugu、Sakuragi Tokio、Ina Toshiaki、Oshima Natsumi、Fujishiro Fumito
    • Journal Title

      Journal of Solid State Chemistry

      Volume: 294 Pages: 121893-121893

    • DOI

      10.1016/j.jssc.2020.121893

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relationship between oxygen desorption and the reduction features of Mn and Fe in perovskite-type SrFe1-xMnxO3-δ2020

    • Author(s)
      Fujishiro Fumito、Oshima Natsumi、Kamioka Nanako、Sakuragi Tokio、Oishi Masatsugu
    • Journal Title

      Journal of Solid State Chemistry

      Volume: 283 Pages: 121152-121152

    • DOI

      10.1016/j.jssc.2019.121152

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Investigation of the arrangement of oxide ion vacancies and their effect on the crystal structure of BaFe0.9In0.1O3-δ2019

    • Author(s)
      Fujishiro Fumito、Sasaoka Chinatsu、Shibata Yusuke、Tsuda Kenji、Hashimoto Takuya
    • Journal Title

      Journal of the American Ceramic Society

      Volume: 102 Issue: 8 Pages: 4427-4430

    • DOI

      10.1111/jace.16470

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Local Electronic and Atomic Structures of the Mixed B-Site Ions in SrFe1-xMnxO3-δ Studied with X-ray Absorption Spectroscopy2021

    • Author(s)
      Masatsugu Oishi, Fumito Fujishiro, Toshiaki Ina, Hirona Yamagishi, Iwao Watanabe, and Toshiaki Ohta
    • Organizer
      2020 International Conference on “Physics and Mechanics of New Materials and Their Applications” (PHENMA 2020)
    • Related Report
      2020 Annual Research Report
  • [Presentation] Bサイト混合系ペロブスカイト型酸化物SrFe1-xMexO3-δ (Me=3d遷移金属)のその場XAFSによる酸素脱離時の電子・局所構造観察2020

    • Author(s)
      大石昌嗣、桜木時央、伊奈稔哲、大嶋奈津美、藤代史
    • Organizer
      第46回固体イオニクス討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Aサイト置換したSrFeO3-δの酸素欠損量と結晶構造および酸素放出特性2019

    • Author(s)
      上岡菜奈子、藤代史、大石昌嗣
    • Organizer
      日本熱測定学会 第55回熱測定討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] Evaluation of the relationship between oxygen desorption property and electronic/local structure of B site ions in perovskite SrFe1-xMexO3-δ (Me = Mn, Co)2019

    • Author(s)
      Fumito Fujishiro, Natsumi Oshima, Tokio Sakuragi, and Masatsugu Oishi
    • Organizer
      The 13th Pacific Rim Conference of Ceramic Societies (PACRIM13)
    • Related Report
      2019 Research-status Report
  • [Presentation] Sr1-xYxFeO3-δのFeの価数・局所構造と酸素放出特性の相関関係の評価2019

    • Author(s)
      上岡菜奈子、藤代史、大石昌嗣
    • Organizer
      日本セラミックス協会中国四国支部 第26回ヤングセラミストミーティングin中四国
    • Related Report
      2019 Research-status Report
  • [Presentation] Bサイト混合系ペロブスカイト型酸化物SrFe1-xMexO3-δ (Me=3d遷移金属)のその場XAFSによる酸素放出・貯蔵特性と電子・局所構造2019

    • Author(s)
      桜木時央、藤代史、大嶋奈津美、伊奈稔哲、大石昌嗣
    • Organizer
      電気化学会 第86回大会
    • Related Report
      2018 Research-status Report
  • [Presentation] SrFe1-xCoxO3-δのBサイトカチオンの局所構造、酸素量と酸素吸収放出特性の評価2018

    • Author(s)
      大嶋奈津美、藤代史、土井卓哉、大石昌嗣
    • Organizer
      日本セラミックス協会 第31回秋季シンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] ペロブスカイト型酸化物SrFe1-xMxO3-δ (M = Mn, Co)の価数変化と酸素吸収放出特性の相関関係2018

    • Author(s)
      大嶋奈津美、藤代史、土井卓哉、桜木時央、大石昌嗣
    • Organizer
      日本熱測定学会 第54回熱測定討論会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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