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Uranium nanoparticles: synthesis at room temperature and new chemical properties

Research Project

Project/Area Number 16K06958
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear engineering
Research InstitutionNational Institutes for Quantum and Radiological Science and Technology (2018)
Kyoto University (2016-2017)

Principal Investigator

uehara akihiro  国立研究開発法人量子科学技術研究開発機構, 放射線医学総合研究所 放射線障害治療研究部, 主任研究員(定常) (30402952)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords二酸化ウラン / ナノ粒子 / 酸化還元 / コロイド / 地層処分 / 再処理 / 酸化ウラン / 酸化還元反応 / ウラン / 濃厚電解質
Outline of Final Research Achievements

Understanding the redox behavior and chemical state changes of actinide compounds in the groundwater environment is important in selecting an appropriate disposal method for radioactive wastes. In this study, we investigated the formation conditions of uranium dioxide nanoparticles that are supposed to be generated in the natural environment, and clarified the chemical properties of the nanoparticles. Various uranium compounds were synthesized, dissolved into the reaction solutions, and the redox reaction was studied by electrochemical method. Electroless deposition was attempted by contact with these aqueous solutions using an organic solvent containing a reductant, and as a result, electrodeposition was successfully achieved at the interface between the aqueous phase and the organic phase without using an electrode.

Academic Significance and Societal Importance of the Research Achievements

本研究では、常温状態の溶液中で二酸化ウランナノ粒子を合成し、ナノ粒子の生成条件を把握し、ナノ粒子の物理化学的特性を調査するもので、アクチニド基礎科学的な視点においてユニークの研究であり、工学的視点においてもアクチニド化合物ナノ材料研究分野で先駆的な研究テーマである。本研究で得られた成果は、放射性廃棄物の埋設処分環境において生成するウランナノ粒子の移行に関する評価に寄与することが考えられる。のみならず、ナノ粒子化による二酸化ウラン低融点化などウラン化合物の新たな物性を見出すことが期待でき、使用済燃料再処理プロセスを含む核燃料サイクル分野での工学的利用の汎用性に寄与できる。

Report

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

    (28 results)

All 2018 2017 2016 2015 Other

All Int'l Joint Research (2 results) Journal Article (10 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 8 results,  Open Access: 5 results,  Acknowledgement Compliant: 3 results) Presentation (14 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results) Patent(Industrial Property Rights) (2 results)

  • [Int'l Joint Research] マンチェスター大学/リーズ大学/ダイアモンドライトソース(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ドレスデンロッセンドルフ研究所(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Cation-cation interaction between NpVO2+ and Li+ in a concentrated LiCl solution2018

    • Author(s)
      Fujii Toshiyuki、Shibahara Yuji、Kato Chizu、Uehara Akihiro
    • Journal Title

      Progress in Nuclear Science and Technology

      Volume: 5 Issue: 0 Pages: 41-43

    • DOI

      10.15669/pnst.5.41

    • ISSN
      2185-4823
    • Year and Date
      2018-11-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Solvent extraction of uranium(VI) from concentrated calcium chloride to organic solution2018

    • Author(s)
      Akihiro Uehara, Toshiyuki Fujii, Takayuki Nagai, Yoshihiro Okamoto
    • Journal Title

      KURRI Progress Report 2017

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Ligand Exchange Reaction from Cl to Br on the Brust-Schiffrin Gold Nanoparticle Synthesis2018

    • Author(s)
      Akihiro Uehara, Toshiyuki Fujii, Yoshihiro Okamoto
    • Journal Title

      Photon Factory Activity Report 2017

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] In situ XAFS Study of Palladium Electrodeposition at the Liquid/Liquid Interface2017

    • Author(s)
      Booth Samuel G.、Chang Sin-Yuen、Uehara Akihiro、La Fontaine Camille、Cibin Giannantonio、Schroeder Sven L.M.、Dryfe Robert A.W.
    • Journal Title

      Electrochimica Acta

      Volume: 235 Pages: 251-261

    • DOI

      10.1016/j.electacta.2017.03.059

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The significance of bromide in the Brust?Schiffrin synthesis of thiol protected gold nanoparticles2017

    • Author(s)
      Booth S. G.、Uehara A.、Chang S.-Y.、La Fontaine C.、Fujii T.、Okamoto Y.、Imai T.、Schroeder S. L. M.、Dryfe R. A. W.
    • Journal Title

      Chemical Science

      Volume: 8 Issue: 12 Pages: 7954-7962

    • DOI

      10.1039/c7sc03266h

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] An in-situ X-ray absorption spectroelectrochemical study of the electroreduction of uranium ions in HCl, HNO3, and Na2CO3 solutions2016

    • Author(s)
      Akihiro Uehara, Toshiyuki Fujii, Hajimu Yamana, and Yoshihiro Okamoto
    • Journal Title

      Radiochimica Acta

      Volume: 104 Issue: 1 Pages: 1-9

    • DOI

      10.1515/ract-2015-2436

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Automated analysis of XANES: A feasibility study of Au reference compounds2016

    • Author(s)
      S.-Y. Chang, L.B. Molleta, S.G. Booth, A. Uehara, J.F.W. Mosselmans, K. Ignatyev, R.A.W. Dryfe, S.L.M. Schroeder
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 712 Pages: 012070-012070

    • DOI

      10.1088/1742-6596/712/1/012070

    • NAID

      120006305897

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Energy dispersive-EXAFS of Pd nucleation at a liquid/liquid interface2016

    • Author(s)
      S.-Y. Chang, S.G. Booth, A. Uehara, J.F.W. Mosselmans, G. Cibin, V.-T. Pham, L. Nataf, R.A.W. Dryfe and S.L.M. Schroeder
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 712 Pages: 012058-012058

    • DOI

      10.1088/1742-6596/712/1/012058

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Detection and characterisation of sub-critical nuclei during reactive Pd metal nucleation by X-ray absorption spectroscopy2016

    • Author(s)
      S.-Y. Chang, Y. Grunder, S. G. Booth, L. B. Molleta, A. Uehara, J. F. W. Mosselmans, G. Cibin, V.-T. Pham, L. Nataf, R. A. W. Dryfe and S. L. M. Schroeder
    • Journal Title

      CrystEngComm

      Volume: 18 Issue: 5 Pages: 674-682

    • DOI

      10.1039/c5ce01883h

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Redox and Ligand Exchange during the Reaction of Tetrachloroaurate with Hexacyanoferrate(II) at a Liquid-Liquid Interface: Voltammetry and X-ray Absorption Fine-Structure Studies2015

    • Author(s)
      Akihiro Uehara, Sin-Yuen Chang, Samuel G. Booth, Sven L. M. Schroeder, J. Frederick W. Mosselmans, and Robert A.W. Dryfe
    • Journal Title

      Electrochimica Acta

      Volume: 109 Pages: 997-1006

    • DOI

      10.1016/j.electacta.2015.12.108

    • NAID

      120005980890

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] 福島第一原発事故において発生した燃料デブリの処理・処分のためのウラン、ジルコニウム酸化物及びホウ素の局所構造解析2018

    • Author(s)
      上原 章寛, 秋山 大輔, 沼子 千弥, 武田 志乃, 池田 篤史, 寺田 靖子, 新田 清文, 伊奈 稔哲, 桐島 陽, 佐藤 修彰
    • Organizer
      日本原子力学会2018年 秋の大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] High temperature reactions of UO2, ZrO2, B4C, CaO, and SiO2 under reducing and oxidizing atmosphere2018

    • Author(s)
      上原 章寛, 秋山 大輔, 沼子 千弥, 武田 志乃, 池田 篤史, 寺田 靖子, 伊奈 稔哲, 新田 清文, 桐島 陽, 佐藤 修彰
    • Organizer
      XAFS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Reaction of uranium- and zirconium oxides under reducing and oxidizing atmospheres: X-ray absorption and X-ray diffraction studies2018

    • Author(s)
      上原 章寛, 秋山 大輔, 沼子 千弥, 寺田 靖子, 新田 清文, 伊奈 稔哲, 武田 志乃, 池田 篤史, 桐島 陽
    • Organizer
      NUMAT2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] パラジウムナノ粒子の合成過程における塩化パラジウム錯体の配位子置換反応2018

    • Author(s)
      金山雄斗, 上原章寛, 今井崇人, 糟野潤
    • Organizer
      日本分析化学会第67年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 液液界面イオン移動ボルタンメトリーを用いたナノ粒子合成過程における金イオンのスペシエーション2018

    • Author(s)
      上原 章寛, S.G. Booth, S.Y. Chang, 今井崇人, S.L.M Schroeder, R.A.W. Dryfe
    • Organizer
      第64回ポーラログラフィーおよび電気分析化学討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Brust-Schiffrinナノ粒子合成過程における金イオンの配位子置換反応~相間移動触媒の役割~2017

    • Author(s)
      上原章寛, S.G. Booth, S.Y. Chang, 今井 崇人, S.L.M Schroeder, R.A.W. Dryfe
    • Organizer
      日本分析化学会 2017年第66年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Brust-Schiffrinナノ粒子合成法における陰イオンの役割2017

    • Author(s)
      上原章寛, S.G. Booth, S.Y. Chang, 今井崇人, S.L.M Schroeder, R.A.W. Dryfe
    • Organizer
      第77回 日本分析化学討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] High temperature reactions of UO2, ZrO2, B4C, CaO, and SiO2: X-ray absorption fine structure and X-ray diffraction analyses2017

    • Author(s)
      A. Uehara, K. Matsumoto, D. Akiyama, C. Numako, Y. Terada, H. Akiyama, T. Ina, S. Homma-Takeda, A. Kirishima, and N. Sato
    • Organizer
      Actinides 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 福島第一原発事故において発生した燃料デブリの処理・処分のための ウラン及び ジルコニウム酸化物の局所構造解析2017

    • Author(s)
      上原章寛、秋山大輔、沼子千弥、武田志乃、池田篤史、寺田靖子、新田清文、伊奈稔哲、桐島陽、佐藤修彰
    • Organizer
      多元研研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 重元素の溶液化学及び先進的リサイクル化学工学2017

    • Author(s)
      上原章寛
    • Organizer
      第77回マテリアルズ・テーラリング研究会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 金属ナノ粒子合成メカニズムの 電気化学的解明と新規合成法の開発2017

    • Author(s)
      上原章寛
    • Organizer
      核化学夏の学校
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Brust-Schiffrin金ナノ粒子合成反応における保護剤及び溶媒の粒子サイズに及ぼす影響2016

    • Author(s)
      原章寛, S.G. Booth, S.Y. Chang, 今井崇人, S.L.M Schroeder, R.A.W. Dryfe
    • Organizer
      ポーラログラフ及び電気分析化学討論会
    • Place of Presentation
      沖縄県
    • Year and Date
      2016-11-19
    • Related Report
      2016 Research-status Report
  • [Presentation] (5)XAS Spectroelectrochemistry to Follow Metallic Nanoparticle Deposition at a Liquid/Liquid Interface2016

    • Author(s)
      S.G. Booth, S. Y. Chang, A. Uehara, S.L.M. Schroeder and R.A.W. Dryfe
    • Organizer
      Electrochem2016
    • Place of Presentation
      イギリス
    • Year and Date
      2016-08-17
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] (4)Electrodeposition of Metallic Particles at a Liquid/Liquid Interface: Controlled and Spontaneous Deposition to Follow the Nucleation Process2016

    • Author(s)
      S.G. Booth, S. Y. Chang, A. Uehara, S.L.M. Schroeder and R.A.W. Dryfe
    • Organizer
      ElecNano -Nanomaterials for sensing and energy driven applications
    • Place of Presentation
      フランス
    • Year and Date
      2016-05-23
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] ガラス固化体からの核種分離方法及び得られた多孔質ガラス固化体2017

    • Inventor(s)
      鷹尾康一朗、森貴宏、池田泰久、上原 章寛
    • Industrial Property Rights Holder
      鷹尾康一朗、森貴宏、池田泰久、上原 章寛
    • Industrial Property Rights Type
      特許
    • Filing Date
      2017
    • Related Report
      2017 Research-status Report
  • [Patent(Industrial Property Rights)] 層状水酸化化合物を用いた放射性物質トリチウムの除去方法2017

    • Inventor(s)
      橋爪秀夫、安藤寿浩、藤井 和子、上原 章寛、福谷哲
    • Industrial Property Rights Holder
      橋爪秀夫、安藤寿浩、藤井 和子、上原 章寛、福谷哲
    • Industrial Property Rights Type
      特許
    • Filing Date
      2017
    • Related Report
      2017 Research-status Report

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

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