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Investigations of formation process of a complex hydride with high hydrogen densities and exploration of new hydrides

Research Project

Project/Area Number 16K06766
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Structural/Functional materials
Research InstitutionTohoku University

Principal Investigator

Sato Toyoto  東北大学, 金属材料研究所, 助教 (20455851)

Research Collaborator Takagi Shigeyuki  
Ikeda Kazutaka  
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: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsエネルギー材料 / 結晶構造 / 振動ダイナミクス / 錯体水素化物 / 格子振動 / X線回折 / 中性子回折 / 構造・機能材料 / 水素 / 量子ビーム
Outline of Final Research Achievements

Complex hydrides with covalently bonded hydrogen have potential for hydrogen storage materials because of the high hydrogen densities. Although the formation (hydrogenation) and decomposition (dehydrogenation) processes of the complex metal hydrides is of fundamental and technological interest, they have not been understood properly. In this study, we elucidated hydrogenation and dehydrogenation processes of a complex hydride LaMg2NiH7. In the hydrogenation process, intermediate phases existed before the formation. In the dehydrogenation process, chemical bonds around hydrogen atoms weakened before the decomposition. In particular, the metal atomic arrangements are maintained during the hydrogenation process, which proceeded at room temperature. This was much lower temperature than typical complex hydrides. Therefore, the maintaining metal atomic arrangement during the hydrogenation process is one important for guideline of designing hydrogen storage materials at moderate conditions.

Academic Significance and Societal Importance of the Research Achievements

本研究から、これまで未解明であった高密度に水素を含有する錯体水素化物の形成・分解反応機構が明らかになるとともに、室温で錯体水素化物の形成反応が進行するための知見が得られた。これらの結果により、将来の水素社会で不可欠な室温付近で水素を高密度に貯蔵できる材料を実現することが期待される。
また、本研究では、原子・分子の観点で得られた知見を材料特性にフィードバックし、錯体水素化物の形成・分解機構を解明した。このような研究遂行方法と得られた知見は、無機物質の新規物質探索研究の全般において不可欠な情報であり、化学、物理学、材料科学、結晶学など学術的な分野の発展にもつながる。

Report

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

    (27 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (3 results) Journal Article (12 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 12 results,  Open Access: 5 results,  Acknowledgement Compliant: 5 results) Presentation (12 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results)

  • [Int'l Joint Research] Oak Ridge National Laboratory(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Oak Ridge National Laboratory(米国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Institute for Energy Technology(ノルウェー)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Hydrogen-release reaction of a complex transition metal hydride with covalently bound hydrogen and hydride ions2019

    • Author(s)
      T. Sato, L.L. Daemen, Y. Cheng, A.J. Ramirez-Cuesta, K. Ikeda, T. Aoki, T. Otomo, S. Orimo
    • Journal Title

      ChemPhysChem

      Volume: 20 Issue: 10 Pages: 1-7

    • DOI

      10.1002/cphc.201801082

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Lithium ion conductivity of complex hydrides incorporating multiple closo-type complex anions2019

    • Author(s)
      N. Toyama, S. Kim, H. Oguchi, T. Sato, S. Takagi, M. Tazawa, G. Nogami, S. Orimo
    • Journal Title

      Journal of Energy Chemistry

      Volume: 38 Pages: 84-87

    • DOI

      10.1016/j.jechem.2019.01.009

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Superconductivity of the hydrogen-rich metal hydride Li5MoH11 under high pressure2019

    • Author(s)
      Meng Dezhong、Sakata Masafumi、Shimizu Katsuya、Iijima Yuki、Saitoh Hiroyuki、Sato Toyoto、Takagi Shigeyuki、Orimo Shin-ichi
    • Journal Title

      Physical Review B

      Volume: 99 Issue: 2 Pages: 024508-024508

    • DOI

      10.1103/physrevb.99.024508

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A complex hydride lithium superionic conductor for high-energy-density all-solid-state lithium metal batteries2019

    • Author(s)
      Kim Sangryun、Oguchi Hiroyuki、Toyama Naoki、Sato Toyoto、Takagi Shigeyuki、Otomo Toshiya、Arunkumar Dorai、Kuwata Naoaki、Kawamura Junichi、Orimo Shin-ichi
    • Journal Title

      Nature Communications

      Volume: 10 Issue: 1 Pages: 1081-1081

    • DOI

      10.1038/s41467-019-09061-9

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Crystal Structural Determination of SrAlD5 with Corner-Sharing AlD6 Octahedron Chains by X-ray and Neutron Diffraction2018

    • Author(s)
      Sato Toyoto、Takagi Shigeyuki、Sorby Magnus、Deledda Stefano、Hauback Bjorn、Orimo Shin-ichi
    • Journal Title

      Crystals

      Volume: 8 Issue: 2 Pages: 89-89

    • DOI

      10.3390/cryst8020089

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fast Lithium-Ion Conduction in Atom-Deficient closo-Type Complex Hydride Solid Electrolytes2018

    • Author(s)
      Kim Sangryun、Toyama Naoki、Oguchi Hiroyuki、Sato Toyoto、Takagi Shigeyuki、Ikeshoji Tamio、Orimo Shin-ichi
    • Journal Title

      Chemistry of Materials

      Volume: 30 Issue: 2 Pages: 386-391

    • DOI

      10.1021/acs.chemmater.7b03986

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evidence of Intermediate Hydrogen States in the Formation of a Complex Hydride2017

    • Author(s)
      Sato Toyoto、Ramirez-Cuesta Anibal J.、Daemen Luke L.、Cheng Yongqiang、Orimo Shin-ichi
    • Journal Title

      Inorganic Chemistry

      Volume: 57 Issue: 2 Pages: 867-872

    • DOI

      10.1021/acs.inorgchem.7b02834

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] In-situ powder neutron diffraction study on the formation process of LaMg2NiH72017

    • Author(s)
      T. Sato, K. Ikeda, M. Matsuo, K. Miwa, T. Otomo, S. Deledda, B. C.. Hauback, G. Li, S. Takagi, S. Orimo
    • Journal Title

      International Journal of Hydrogen Energy

      Volume: 印刷中 Issue: 35 Pages: 22449-22453

    • DOI

      10.1016/j.ijhydene.2017.02.196

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Infrared Spectroscopic and Computational Studies on Li<sub>4</sub>FeH<sub>6</sub> with High Gravimetric Hydrogen Density2017

    • Author(s)
      T. Ogata, T. Sato, S. Takagi, H. Saitoh, Y. Iijima, B. Paik, S. Orimo
    • Journal Title

      MATERIALS TRANSACTIONS

      Volume: 58 Issue: 2 Pages: 157-159

    • DOI

      10.2320/matertrans.M2016345

    • NAID

      130005297165

    • ISSN
      1345-9678, 1347-5320
    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Fast sodium ionic conduction in Na2B10H10-Na2B12H12 pseudo-binary complex hydride and application to a bulk-type all-solid-state battery2017

    • Author(s)
      K. Yoshida, T. Sato, A. Unemoto, M. Matsuo, T. Ikeshoji, T.J. Udovic, S. Orimo
    • Journal Title

      Applied Physics Letters

      Volume: 110 Issue: 10

    • DOI

      10.1063/1.4977885

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Formation of novel transition metal hydride complexes with ninefold hydrogen coordination2017

    • Author(s)
      S. Takagi, Y. Iijima, T. Sato, H. Saitoh, K. Ikeda, T. Otomo, K. Miwa, T. Ikeshoji, S. Orimo
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 442531-8

    • DOI

      10.1038/srep44253

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Hydrogen release reactions of Al-based complex hydrides enhanced by vibrational dynamics and valences of metal cations2016

    • Author(s)
      T. Sato, A.J. Ramirez-Cuesta, L. Daemen, Y.-Q. Cheng, K. Tomiyasu, S. Takagi, S. Orimo
    • Journal Title

      Chemical Communications

      Volume: 52 Issue: 79 Pages: 11807-11810

    • DOI

      10.1039/c6cc05199e

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] A Complex transition metal hydride formation process studied by neutron scattering2019

    • Author(s)
      Toyoto Sato, Kazutaka Ikeda, Toshiya Otomo, Anibal J. Ramirez-Cuesta, Luke Daemen, Yongqiang Cheng, Shin-ichi Orimo
    • Organizer
      LATSIS Symposium 13th International symposium "Hydrogen & Energy"
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新規水素化物探索研究における未知結晶構造解析2018

    • Author(s)
      佐藤豊人
    • Organizer
      地球惑星科学研究会・高圧物質科学研究会・コヒーレントX線物質科学 合同研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 共有結合性水素と水素化物イオンを有する錯体水素化物の脱水素化反応機構の解明2018

    • Author(s)
      佐藤 豊人, Anibal J. Ramirez-Cuesta, Luke Daemen, Yongqiang Cheng, 池田 一貴, 大友 季哉, 折茂 慎一
    • Organizer
      日本金属学会2018年秋期(第163回)大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Formation process of a complex transition metal hydride2018

    • Author(s)
      Toyoto Sato, Kazutaka Ikeda, Toshiya Otomo, Anibal J. Ramirez-Cuesta, Luke Daemen, Yongqiang Cheng, Shin-ichi Orimo
    • Organizer
      16th International Symposium on Metal-Hydrogen Systems(MH2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Observation of precursor states on complex hydride formation for hydrogen storage2018

    • Author(s)
      T. Sato, K. Ikeda, T. Otomo, A. J. Ramirez-Cuesta, L. Daemen, Y. Cheng, S. Orimo
    • Organizer
      Advanced Energy Materials Congress 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 頂点水素共有の八面体AlH6によって形成されるSrAlH5の結晶構造解析2018

    • Author(s)
      佐藤豊人, 髙木成幸, M.H. Sorby, S. Deledda, B. C. Hauback, 折茂慎一
    • Organizer
      日本金属学会2018年春季(第162回)大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 水素貯蔵材料中の水素のダイナミクス2017

    • Author(s)
      佐藤豊人, 折茂慎一
    • Organizer
      日本物理学会第72回大会
    • Place of Presentation
      豊中
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 水素化物中の水素の振動ダイナミクス2017

    • Author(s)
      佐藤豊人, A.J. Ramirez-Cuesta, 折茂慎一
    • Organizer
      第4回水素化物に関わる次世代学術・応用展開研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 結晶構造と水素の振動ダイナミクスの観点での錯体水素化物の形成機構の解明2017

    • Author(s)
      佐藤豊人, 池田一貴, 大友季哉, A. J. Ramirez-Cuesta, L. Daemen, Y. Cheng, 折茂慎一
    • Organizer
      日本金属学会2017年秋季(第161回)大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 中性子非弾性散乱を用いたAl系錯体水素化物の振動モード観測2016

    • Author(s)
      佐藤豊人, Anibal J. Ramirez-Cuesta, Luke Daemen, Yongqiang Cheng, 富安 啓輔, 高木 成幸, 折茂 慎一
    • Organizer
      第3回「水素化物に関わる次世代学術・応用展開研究会」
    • Place of Presentation
      室蘭
    • Year and Date
      2016-10-27
    • Related Report
      2016 Research-status Report
  • [Presentation] 遷移金属系錯体水素化物の水素化・脱水素化反応の解明2016

    • Author(s)
      佐藤 豊人, 松尾 元彰, 折茂 慎一
    • Organizer
      日本金属学会2016年秋季(第159回)大会
    • Place of Presentation
      豊中
    • Year and Date
      2016-09-21
    • Related Report
      2016 Research-status Report
  • [Presentation] Precursor state for formation of a complex hydride2016

    • Author(s)
      T. Sato, K. Miwa, M. Matsuo, K. Ikeda, T. Otomo, S. Deledda, B. C. Hauback, G. Li, S. Takagi, S. Orimo
    • Organizer
      International Symposium on Metal-Hydrogen Systems 2016 (MH2016)
    • Place of Presentation
      インターラーケン(スイス)
    • Year and Date
      2016-08-07
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2022-02-16  

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