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Ruthenium-oxo species with high oxidation performance supported on nano-scale particles prepared by the solvothermal reaction

Research Project

Project/Area Number 18560739
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Catalyst/Resource chemical process
Research InstitutionKyoto University

Principal Investigator

IMAMURA Seiichiro  Kyoto University, Graduate School of Engineering, Program-Specific Researcher (00027898)

Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,850,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2006: ¥3,200,000 (Direct Cost: ¥3,200,000)
KeywordsCatalysis & Chemical process / Environmental materials / Water purification / Air pollution control / Oxidation / 水質汚濁防止
Research Abstract

In this work, we aimed at designing Ru species with Ru=O group which is highly dispersed on metal oxide supports prepared by the solvothermal reaction. This Ru species is expected to have peculiar and high activity for oxidation reactions. First, CeO_2 was employed as a support. The solvothermal reaction of Ce metal in 2-methoxy ethanol produced ultra fine CeO_2 colloidal particles whose average diameter was 2nm. The obtained CeO_2 colloidal solution was coagulated by various coagulants to produce CeO_2 powders. Their pore structures varied with the kinds of coagulants (NaOH, NH_4OH, Na_2CO_3, (NH_4)_2CO_3, NaHCO_3). The CeO_2 powders produced by using (NH_4)_2CO_3 and NaHCO_3 had macro and meso pores while those obtained with NaOH and NH_4OH had much micro pores. Ruthenium could be supported on the former CeO_2 in a well dispersed state but could not be supported in the micro-pore of the latter; thus, the former catalysts had higher activity in the oxidation of benzyl alcohol than the … More latter.
The natures of the CeO_2 sample prepared by an ordinary precipitation method starting from aq. Ce(NO_3)_3 and the one prepared by starting from CeO_2 colloidal solution synthesized by the solvothermal method were compared. The solvothermal sample could be easily reduced and re-oxidized; it had larger amount of surface mobile oxygen than the precipitation sample. Consequently, the activity of the Ru supported on the solvothermal CeO_2 was much larger than that on the CeO_2 prepared by the precipitation method; indicating the excellence of the solvothermal method to prepare high performance ultra fine metal oxide particles.
Various other supports were examined to obtain Ru species with Ru=O bond. The target supports to obtain the Ru species were ZrO_2, TbO_2, and Pr_6O_<11>. However, none of them were successful to produce this kind of Ru species. Conclusion of the present research is that the combination of Ru with CeO_2 is the sole and unique system to produce the finely dispersed Ru species with the Ru=O bond. The author expects the high potential of this catalyst to be used in various organic reactions. Less

Report

(3 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • Research Products

    (16 results)

All 2008 2007

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (13 results)

  • [Journal Article] Pore-Structure-Controlled Coagulates of CeO_2 Nanoparticles for Supporting Ru Catalysts in Liquid Phase Oxidation of Benzyl Alcohol2007

    • Author(s)
      Y. Hayashi, S. Hosokawa, S. Imamura, M. Inoue
    • Journal Title

      J. Ceram. Soc. Jpn. 115

      Pages: 592-596

    • NAID

      110006436405

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Pore-Structure-Controlled Coagulates of CeO_2 Nanoparticles for Supporting Ru Catalysts in Liquid Phase Oxidation of Benzyl Alcohol2007

    • Author(s)
      Y. Hayashi, S. Hosokawa,.S. Imamura, M. Inoue
    • Journal Title

      J. Ceram. Soc. Jpn. 115 (10)

      Pages: 592-596

    • NAID

      110006436405

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Pore-Structure-Controlled Coagulates of CeO_2 Nanoparticles for Supporting Ru Catalysts in Liquid2007

    • Author(s)
      Y. Hayashi, S. Hosokawa, S. Imamura, M. Inoue
    • Journal Title

      J. Ceram. Soc. Jpn. 115

      Pages: 592-596

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] CeO_2担持Ru触媒の調製法がベンジルアルコールの液相酸化活性に及ぼす影響2008

    • Author(s)
      細川三郎, 林幸寛, 今村成一郎, 和田健司, 井上正志
    • Organizer
      日本化学会第88春季年会
    • Place of Presentation
      東京
    • Year and Date
      2008-03-27
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Effect of the preparation condition of Ru/CeO_2 on the activity in the oxidation of benzyl alcohol2008

    • Author(s)
      Y. Hayashi, S. Hosokawa, S. Imamura, K. Wada, M. Inoue
    • Organizer
      The 88^<th> CSJ Annual Meeting
    • Place of Presentation
      Tokyo
    • Year and Date
      2008-03-27
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] CeO_2担持Ru触媒の調製法がベンジルアルコールの液相酸化活性に及ぼす影響2008

    • Author(s)
      細川三郎・林幸寛・今村成一郎・和田健司・井上正志
    • Organizer
      日本化学会
    • Place of Presentation
      立教大学・東京
    • Year and Date
      2008-03-27
    • Related Report
      2007 Annual Research Report
  • [Presentation] ソルボサーマル法で合成したCeO_2コロイド粒子の凝集状態制御2008

    • Author(s)
      林幸寛, 細川三郎, 今村成一郎, 井上正志
    • Organizer
      日本セラミックス協会2008年年会
    • Place of Presentation
      長岡
    • Year and Date
      2008-03-22
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Control of coagulation of CeO_2 colloid prepared by the solvothermal method2008

    • Author(s)
      Y. Hayashi, S. Hosokawa, S. Imamura, M. Inoue
    • Organizer
      The 2008 Annual Meeting of the Ceramic Society of Japan
    • Place of Presentation
      Nagaoka
    • Year and Date
      2008-03-22
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] ソルボサーマル法で合成したCeO_2コロイド粒子の凝集状態制御2008

    • Author(s)
      林幸寛・細川三郎・今村成一郎・井上正志
    • Organizer
      日本セラミクス協会
    • Place of Presentation
      長岡技術科学大学・長岡
    • Year and Date
      2008-03-22
    • Related Report
      2007 Annual Research Report
  • [Presentation] Ru/CeO_2触媒の酸化特性に及ぼす調製法の影響2007

    • Author(s)
      林幸寛, 細川三郎, 今村成一郎, 井上正志
    • Organizer
      第17回キャラクタリゼーション講習会「グリーンキャットシンポジウム」
    • Place of Presentation
      京都
    • Year and Date
      2007-11-19
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Effect of the preparation condition on the oxidation performance of Ru/CeO_2 Catalyst2007

    • Author(s)
      Y. Hayashi, S. Hosokawa, S. Imamura, M. Inoue
    • Organizer
      The 17^<th> Characterization Workshop-Green-cat Symposium
    • Place of Presentation
      Kyoto
    • Year and Date
      2007-11-19
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] CeO_2担持Ru触媒を用いた液相酸化反応における担体効果2007

    • Author(s)
      林幸寛, 細川三郎, 今村成一郎, 井上正志
    • Organizer
      第100回触媒討論会
    • Place of Presentation
      札幌
    • Year and Date
      2007-09-19
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Support effect of Ru/CeO_2 catalysts on liquid-phase oxidation2007

    • Author(s)
      Y. Hayashi, S. Hosokawa, S. Imamura, M. Inoue
    • Organizer
      The 100^<th> Meeting of Catalysis Society of Japan
    • Place of Presentation
      Sapporo
    • Year and Date
      2007-09-19
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] CeO_2担持Ru触媒を用いた液相酸化反応における担体効果2007

    • Author(s)
      林幸寛・細川三郎・今村成一郎・井上正志
    • Organizer
      日本触媒学会
    • Place of Presentation
      北海道大学・北海道
    • Year and Date
      2007-09-19
    • Related Report
      2007 Annual Research Report
  • [Presentation] ソルボサーマル法で調製したCeO2凝集体の細孔構造制御とこれを担体としたRu触媒の活性2007

    • Author(s)
      林幸寛, 細川三郎, 今村成一郎, 井上正志
    • Organizer
      日本化学会第87春季年会
    • Place of Presentation
      大阪
    • Year and Date
      2007-03-25
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Pore structure control of CeO_2 particles prepared by the solvothermal Reaction and the activity of Rucatalysts supported on these CeO_22007

    • Author(s)
      Y. Hayashi, S. Hosokawa, S. Imamura, M. Inoue
    • Organizer
      The 87th CSJ Annual Meeting
    • Place of Presentation
      Osaka
    • Year and Date
      2007-03-25
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary

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Published: 2006-04-01   Modified: 2016-04-21  

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