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Size and shape control of metal nanoparticles using dendron ligands

Research Project

Project/Area Number 18510088
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Nanostructural science
Research InstitutionTokyo University of Science

Principal Investigator

TORIGOE Kanjiro  Tokyo University of Science, Research Institute for Science and technology, Post-doctoral researcher (00307696)

Co-Investigator(Kenkyū-buntansha) ABE Masahiko  Tokyo University of Science, Dept.of Pure and Applied Chemistry, Professor (40089371)
SAKAI Hideki  Tokyo University of Science, Dept.of Pure and Applied Chemistry, Associate Professor (80277285)
SHONO Atsushi  Tokyo University of Science, Dept.of Chemical Engineering, Assocciate Professor (20235716)
大久保 貴広  東京理科大学, 総合研究機構, 助手 (30385554)
Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,970,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2006: ¥2,800,000 (Direct Cost: ¥2,800,000)
Keywordsmetal nanoparticles / dendron / ligand / microflow reactor / reversed micelle / size control / マイクロリアクター
Research Abstract

Physical and chemical properties of metal nanoparticles strongly depend on their size and shape, thus their control is very important in both basic researches and applications. We have attempted to control the particle size by two different systems : microflow reactor and reversed micelle.
First in the microflow reactor system, poly (benzyl ether) dendron ligands of generations 1 to 4 with an amino focal group have been synthesized. These dendron ligands were mixed with an organometallic compound (palladium (II) acetate, Pd(OAc)_2) in an inert solvent with a high boiling point (diphenyl ether, bp.259℃) and pushed out from a syringe to a silica microflow reactor with 150-300μm in inner diameter. The Pd nanoparticles were yielded by thermal decomposition of Pd (OAc)_2. In this system, effects of flow parameters, i.e. reaction temperature, inner diameter of the reactor, flow rate, concentrations ofprecursor and ligand, have been investigated. The following results were obtained : (1) The p … More article size increases from 2.7 to 4.8 nm with increasing the reaction temperature, (2) the particle size decreases with increasing linear flow rate but does not depend on the volume flow rate. Moreover, (3) the particle size shows the minimum at r=1-2where r is defined by the dendrimer to metal precursor molar ratio. We found also that the particle size does not vary in a wide concentration range of the metal precursor (1-27mM) with keeping an excellent monodispersity, while in the batch reactor, a significant increase in both the mean particle size and the polydispersity was observed with increasing the precursor concentration. This implies that the microflow reactor system is feasible for mass production of size-regulated metal nanoparticles.
Second, poly (benzyl ether) dendrons attached with a polyethyleneglycol (PEG) chain at the focal point were synthesized for making reverse micelles in organic solvents. Since the hydrophil/lyophil balance (HLB) varies with the length of PEG chain(n), we started with n=6. However, it was not long enough to solubilize water in the reverse micelle. Therefore we synthesized the dendron with a longer PEG chain, n=8 and 11.5. The dendon with the longest PEG chain has been found to solubilize water in the reverse micelles in toluene. However, it is not yet clear that these micelles can work as a reservoir for metal nanoparticles. Less

Report

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

    (16 results)

All 2010 2009 2008 Other

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

  • [Journal Article] Microflow reactor synthesis of palladium nanoparticles stabilized with poly(benzyl ether)ligands2010

    • Author(s)
      K.Torigoe, Y.Watanabe, T.Endo, K.Sakai, H.Sakai, M.Abe
    • Journal Title

      Journal of Nanoparticle Research (印刷中)

      Pages: 10-10

    • 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] Microre actor synthesis of palladium nanoparticles stabilized with poly (benzyl ether) dendron ligands2009

    • Author(s)
      K. Torigoe, 他4人
    • Journal Title

      Journal of Nanop article Research (submitted)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microflow reactor synthesis of palladium nanoparticles stabilized with poly(benzyl ether)ligands

    • Author(s)
      K.Torigoe, Y.Watanabe, T.Endo, K.Sakai, H.Sakai, M.Abe
    • Journal Title

      Journal of Nanoparticle Research (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microflow reactor synthesis of palladium nanoparticles stabilized with poly(benzyl ether)ligands2009

    • Author(s)
      鳥越幹二郎、渡邊洋介、遠藤健司、酒井健一、酒井秀樹、阿部正彦
    • Organizer
      The 3^<rd> Asian Conference on Colloid and Inter face Science
    • Place of Presentation
      Jeju island(South Korea)
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] マイクロフローリアクターによる金属ナノ粒子の調製2009

    • Author(s)
      渡邊洋介、鳥越幹二郎、酒井健一、酒井秀樹、阿部正彦
    • Organizer
      第61回コロイドおよび界面化学討論会
    • Place of Presentation
      九州大学
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] マイクロフローリアクターを利用したデンドロン保護Pdナノ粒子の調製2009

    • Author(s)
      渡邊洋介、鳥越幹二郎、遠藤健司、酒井健一、酒井秀樹、阿部正彦
    • Organizer
      第62回コロイドおよび界面化学討論会
    • Place of Presentation
      岡山理科大学
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] マイクロフローリアクターによるPdナノ粒子のサイズ制御2009

    • Author(s)
      渡邊洋介、鳥越幹二郎、遠藤健司、酒井健一、酒井秀樹、阿部正彦
    • Organizer
      2009年度色材協会研究発表会
    • Place of Presentation
      エルおおさか
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] マイクロフローリアクターによるPd粒子のサイズ制御およびその触媒特性評価2009

    • Author(s)
      渡邊洋介、鳥越幹二郎、遠藤健司、酒井健一、酒井秀樹、阿部正彦
    • Organizer
      2009年度材料技術研究協会討論会
    • Place of Presentation
      東京理科大学(野田)
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 逆ミセル法による金属ナノ粒子調製のためのデンドロン型両親媒性分子の合成2009

    • Author(s)
      関谷匡俊、鳥越幹二郎、酒井健一、酒井秀樹、阿部正彦
    • Organizer
      日本油化学会第47回大会
    • Place of Presentation
      名古屋工業大学
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microflow reactor synthesis of palladium nanoparticles stabilized with poly(benzyl ether)ligands2009

    • Author(s)
      K.Torigoe, Y.Watanabe, T.Endo, K.Sakai, H.Sakai, M.Abe
    • Organizer
      The 3^<rd> Asian Conference on Colloid and Interface Science
    • Place of Presentation
      Jeju island(South Korea)
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microreactor synthesis of metal nanoparticles2009

    • Author(s)
      Y.Watanabe, K.Torigoe, K.Sakai, H.Sakai, M.Abe
    • Organizer
      The 61st Symposium on Colloid and Interface Science
    • Place of Presentation
      Kyushu University(Fukuoka)
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microreactor synthesis of palladium nanoparticles stabilized with dendron ligands2009

    • Author(s)
      Y.Watanabe, K.Torigoe, T.Endo, K.Sakai, H.Sakai, M.Abe
    • Organizer
      The 62nd Symposium of Colloid and Interface Science
    • Place of Presentation
      Okayama Univ.of Science
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Size control of Pd nanoparticles using microflow reactor2009

    • Author(s)
      Y.Watanabe, K.Torigoe, T.Endo, K.Sakai, H.Sakai, M.Abe
    • Organizer
      2009 Japan Society of Color Material Conference
    • Place of Presentation
      L-Osaka
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Size control of Pd nanoparticles using microflow reactor and their catalytic properties2009

    • Author(s)
      Y.Watanabe, K.Torigoe, T.Endo, K.Sakai, H.Sakai, M.Abe
    • Organizer
      2009 Material Technology Society Conference
    • Place of Presentation
      Tokyo University of Science
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Synthesis of Dendron amphiphiles for preparation of metal nanoparticles in reversed micelles2009

    • Author(s)
      M.Sekiya, K.Torigoe, K.Sakai, H.Sakai, M.Abe
    • Organizer
      The 48^<th> Conference of Japan Oil Chemical Society
    • Place of Presentation
      Nagoya Institute of Technology
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] マイクロフローリアクターを用いた種々の金属ナノ粒子の調製2008

    • Author(s)
      渡邊洋介, 他4人
    • Organizer
      第61回コロイドおよび界面化学討論会
    • Place of Presentation
      九州大学六本松キャンパス
    • Year and Date
      2008-09-07
    • Related Report
      2007 Annual Research Report

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

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