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Development of Hydrogen Storage Technique by Using Carbon Nanotubes

Research Project

Project/Area Number 13555050
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Thermal engineering
Research InstitutionThe University of Tokyo

Principal Investigator

MARUYAMA Shigeo  The University of Tokyo, School of Engineering, Associate Professor, 大学院・工学系研究科, 助教授 (90209700)

Co-Investigator(Kenkyū-buntansha) INOUE Mitsuru  The University of Tokyo, School of Engineering, Research Associate, 大学院・工学系研究科, 助手 (30010854)
MATSUMOTO Yoichiro  The University of Tokyo, School of Engineering, Professor, 大学院・工学系研究科, 教授 (60111473)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥12,800,000 (Direct Cost: ¥12,800,000)
Fiscal Year 2003: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2002: ¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 2001: ¥5,600,000 (Direct Cost: ¥5,600,000)
KeywordsHydrogen Storage / Carbon Nanotube / Molecular Dynamics Simulation / Chemical Vapor Deposition / Metal Catalysts / Generation Techniaque / Absorption / 単層ナノチューブ / 触媒CVD / FT-ICR質量分析装置 / 生成機構 / 分子動力学法 / アルコール / 炭素ナノチューブ / レーザーオーブン
Research Abstract

The high hydrogen storage capacity of carbon nanotubes has been reported for single-walled carbon nanotubes (SWNTs) and metal-doped graphite nanofibers. Because of its impact in applications in fuel cell vehicles, intensive experimental and theoretical works have been performed. Some of the most striking reports are questionable and molecular dynamics simulations in this research project cannot explain the hydrogen storage capacity of SWNTs more than 1 wt %. Hence, the generation of high-purity SWNTs is the key issue to solve this discrepancy. In addition to the laser-furnace technique, we developed a new CVD technique for bulk high-purity generation of SWNTs. By using alcohols such as ethanol and methanol as the carbon sources in catalytic CVD, high-purity SWNTs without metal particles, amorphous carbon or MWNTs can be synthesized at relatively low reaction temperatures of 600 -800 For the bulk generation of SWNTs, Fe/Co bimetal catalysts supported on USY zeolite was employed. The diameter and chirality distributions, which were examined by resonant Raman scatterings and near infrared fluorescence spectroscopy, could be quite narrow at lower CVD temperatures. Combined with the molecular dynamics simulation of the nanotube growth process, the determination mechanism of chirality by the nanotube cap structure was demonstrated. In addition to the bulk generation by using zeolite, Fe/Co or Co/Mo nano-particles directly located on quartz or silicon substrate by dip-coating can be used as efficient catalysts. With this latter system, detailed characterization of catalysts and the growth of vertically aligned SWNTs mat on a quartz substrate were demonstrated. With this latter system, virtually metal-free SWNTs were generated for the further clarifications of hydrogen storage examinations.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report

Research Products

(28 results)

All Other

All Publications

  • [Publications] 丸山茂夫: "カーボンナノチューブによる水素吸蔵"応用物理. 71巻. 323-326 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Maruyama, R.Kojima, Y.Miyauchi, S.Chiashi, M.Kohno: "Low-Temperature Synthesis of High-Purity Single-Walled Carbon Nanotubes from Alcohol"Chemical Physics Letters. vol.360. 229-234 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Murakami, Y.Miyauchi, S.Chiashi, S.Maruyama: "Characterization of Single-Walled Carbon Nanotubes Catalytically Synthesized from Alcohol"Chemical Physics Letters. vol.374. 53-58 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Murakami, Y.Miyauchi, S.Chiashi, S.Maruyama: "Direct synthesis of high-quality single-walled carbon nanotubes on silicon and quartz substrates"Chemical Physics Letters. vol.377. 49-54 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Murakami, S.Chiashi, Y.Miyauchi, M.Hu, M.Ogura, T.Okubo, S.Maruyama: "Growth of vertically aligned single-walled carbon nanotube films on quartz substrates and their optical anisotropy"Chemical Physics Letters. vol.385. 298-303 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Maruyama: "Hydrogen Storage with Carbon Nanotubes"Oyo-Butsuri. vol.71, no.3. 323-326 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Maruyama, R.Kojima, Y Miyauchi, S.Chiashi, M.Kohno: "Low-Temperature Synthesis of High-Purity Single-Walled Carbon Nanotubes from Alcohol"Chemical Physics Letters. vol.360,no.3-4. 229-234 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Murakami, Y Miyauchi, S.Chiashi, S.Maruyama: "Characterization of Single-Walled Carbon Nanotubes Catalytically Synthesized from Alcohol"Chemical Physics Letters. vol.374, no.1-2. 53-58 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Murakami, Y.Miyauchi, S.Chiashi, S.Maruyama: "Direct synthesis of high-quality single-walled carbon nanotubes on silicon and quartz substrates"Chemical Physics Letters. vol.377, no.1-2. 49-54 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Murakami, S.Chiashi, Y.Miyauchi, M.Hu, M.Ogura, T.Okubo, S.Maruyama: "Growth of vertically aligned single-walled carbon nanotube films on quartz substrates and their optical anisotropy"Chemical Physics Letters. vol.385, no.3-4. 298-303 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Shibuta, S.Maruyama: "Molecular dynamics simulation of formation process of single-walled carbon nanotubes by CCVD method"Chemical Physics Letters. 382, 3-4. 381-386 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Maruyama, Y.Miyauchi, Y.Murakami, S.Chiashi: "Optical Characterization of Single-Walled Carbon Nanotubes Synthesized by Catalytic Decomposition of Alcohol"New Journal of Physics. 5, 1. 149.1-149.12 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 丸山茂夫: "アルコールを用いた低温CVDにより成長するナノチューブ(実験とシミュレーション)"結晶成長学会誌. 30, 4. 32-41 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Murakami, Y.Miyauchi, S.Chiashi, S.Maruyama: "Direct synthesis of high-quality single-walled carbon nanotubes on silicon and quartz substrates"Chemical Physics Letters. 377, 1-2. 49-54 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Murakami, Y.Miyauchi, S.Chiashi, S.Maruyama: "Characterization of Single-Walled Carbon Nanotubes Catalytically Synthesized from Alcohol"Chemical Physics Letters. 374, 1-2. 53-58 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Murakami, S.Yamakita, T.Okubo, S.Maruyama: "Single-Walled Carbon Nanotubes Catalytically Grown from Mesoporous Silica Thin Film"Chemical Physics Letters. 375, 3-4. 393-398 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 丸山茂夫: "アルコールを使った単層カーボンナノチューブの合成技術"工業材料. 51巻1号. 38-41 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 丸山茂夫, 宮内雄平, 千足昇平, 河野正道: "アルコールCCVD法による単層カーボンナノチューブの低温高純度生成"日本機械学会論文集(B編). (掲載予定). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Kohno, S.Inoue, A.Yabe, S.Maruyama: "FT-ICR Studies of Precursor Clusters of Single Wall Carbon Nanotubes (SWNTs)"Micro. Thermophys. Eng.. 7-1. 33-39 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 澁田靖, 丸山茂夫: "単層カーボンナノチューブ生成過程の分子動力学"日本機械学会論文集(B編). 68巻675号. 3087-3092 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Maruyama, R.Kojima, Y.Miyauchi, S.Chiashi, M.Kohno: "Low-Temperature Synthesis of High-Purity Single-Walled Carbon Nanotubes from Alcohol"Chem. Phys. Lett.. 360,3-4. 229-234 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Maruyama, Y.Shibuta: "Molecular Dynamics in Formation Process of SWNTs"Molecular Crystals and Liquid Crystals. 387. 87-92 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Kohno: "FT-ICR Studies of Laser Vaporized Clusters from Ni/Co and Ni/Y Loaded Graphite Samples"Physica B. (掲載予定). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 丸山茂夫: "単層カーボンナノチューブの生成とメカニズム"放射線化学. (掲載予定). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 丸山茂夫: "カーボンナノチューブによる水素吸蔵"応用物理. 71巻・3号. 323-326 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Maruyama: "Molecular Dynamics in Formation Process of SWNTs"Molecular Crystals and Liquid Crystals. (掲載予定). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Maruyama: "FT-ICR Reaction Experiments and Molecular Dynamics Simulations of Precursor Clusters for SWNTs"Perspectives of Fullerene Nanotechnology. 131-142 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Y.Shibuta: "Molecular Dynamics Simulation of Generation Process of SWNTs"Physica B. (掲載予定). (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-03-31   Modified: 2016-04-21  

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