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Development of Diamond-Carbon Nanotube Hybrid Materials

Research Project

Project/Area Number 14350429
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 触媒・化学プロセス
Research InstitutionKansai University

Principal Investigator

SUZUKI Toshimitsu  Kansai University, Faculty of Engineering, Professor, 工学部, 教授 (70026045)

Co-Investigator(Kenkyū-buntansha) IKENAGA Naoki  Kansai University, Faculty of Engineering, Assistant Prof., 工学部, 助教授 (20232209)
ANODO Toshihiro  NIMS Material Research Laboratories, Senior Researcher, 物質研究所, 主幹研究員 (80343846)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥14,900,000 (Direct Cost: ¥14,900,000)
Fiscal Year 2004: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 2003: ¥4,700,000 (Direct Cost: ¥4,700,000)
Fiscal Year 2002: ¥8,100,000 (Direct Cost: ¥8,100,000)
KeywordsDiamond / Methane / Ethane / Nickel / Palladium / TEM / Carbon Fiber / Carbon nanotube / エチレン / シリカ / CVD
Research Abstract

Diamond has unique physical properties and recent progress in CVD diamond process provided semi-conductor diamond thin films. We have first discovered that several metals or metal oxide loaded on powdered diamonds surface exhibited very high catalytic activities in several reactions involving methane and lower hydrocarbons. This research is extent ion of diamond catalyzed reactions of hydrocarbons on metal loaded oxidized diamond to give diamond and carbon nanotube hybrid materials. Diamond is composed of sp3 carbons whereas carbon nanotube is composed of sp2 carbons. If diamond and carbon nanotube hybrid materials could be synthesized, unique physical properties would be expected. From these perspectives, this research was planned and synthesis of diamond-carbon nanotube hybrid material was successfully achieved.
Several iron group metal loaded diamond powder was hydrogen reduced and reacted with methane and ethane at an elevated temperature of 400 to 800 ℃. Ni and Pd loaded diamond af … More forded a large amount of carbon nanofibers. On Ni-loaded case the maximum rate of carbon was obtained at 500 ℃ with methane and 600 ℃ with ethane, and from both hydrocarbons no nanofiber formation was observed at 650 ℃. Very small amount of carbon nanofibers were obtained on Co and Fe loaded diamond irrespective of the reaction temperature. On Fe-loaded diamond at 1000 ℃, very small amount of single wall carbon nanotube directly bonded to diamond surface was obtained by TEM observation.
On the contrary, with Pd-loaded case carbon nanofibers were produced at higher temperature of 500 to 800 ℃, and even at 800 ℃ a large amount of carbon nanofibers were produced both from methane and ethane. In addition, at 800 ℃ with ethane as a carbon source over Pd-loaded diamond catalyst, very thick carbon fibers were produced by the combinations of initially produced thin carbon fibers.
Metal catalyzed carbon nanofiber growth mechanism by the decomposition of hydrocarbon was clarified and this shed light to the design of the catalyst and growth conditions. Less

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (9 results)

All 2005 2001 Other

All Journal Article (5 results) Patent(Industrial Property Rights) (1 results) Publications (3 results)

  • [Journal Article] Carbon nanotube formation on Ni- or Pd-loaded diamond catalysts2005

    • Author(s)
      N.Higashi, N.Ikenaga, T.Miyake, T.Suzuki
    • Journal Title

      Diamond and Related Materials 14

      Pages: 820-824

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Oxidized Diamond as a Simultaneous Production Medium of Carbon Nanomaterials and Hydrogen for Fuel Cell2005

    • Author(s)
      K.Nakagawa, M.Yamagishi, N.Ikenaga, T.Ando, T.Suzuki
    • Journal Title

      Chemistry of Materials 15

      Pages: 4571-4575

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Carbon nanotube formation on Ni- or Pd-loaded diamond catalysts2005

    • Author(s)
      N.Higashi, N.Ikenaga, T.Miyake, T.Suzuki
    • Journal Title

      Diamond and Related Materials Vol.14

      Pages: 820-824

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Oxidized Diamond as a Simultaneous Production Medium of Carbon Nanomaterials and Hydrogen for Fuel Cell2005

    • Author(s)
      K.Nakagawa, M.Yamagishi, N.Ikenaga, T.Ando, T.Suzuki
    • Journal Title

      Chemistry of Materials Vol.15

      Pages: 4571-4575

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Carbon nanotube formation on Ni- or Pd-loaded diamond catalysts2005

    • Author(s)
      N.Higashi, N.Ikenaga, T.Miyake, T.Suzuki
    • Journal Title

      Diamond and Related Materials (in press)

    • Related Report
      2004 Annual Research Report
  • [Patent(Industrial Property Rights)] 炭化水素の分解による接触的カーボンナノチューブの製造方法及びその触媒2001

    • Inventor(s)
      鈴木 俊光, 中川 清晴
    • Industrial Property Rights Holder
      (独)科学技術振興機構
    • Filing Date
      2001-10-05
    • Acquisition Date
      2004-12-17
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] K.Nakagawa, T.Ando, N.Ikenaga, T.Suzuki: "Oxidized diamond as a simultaneous production medium of carbon nanotube and hydrogen for fuel cell"Chemistry of Materials. 15,24. 4571-4575 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] N.Ikenaga, K.Nakagawa, T.Ando, T.Suzuki: "A green Process for the Production of Carbon Nano-tubes in Organic Liquid"1st International Conference on Green & Sustainable Chemistry Proceedings. A-26 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 中川清晴, 蒲生西谷美香, 安藤寿浩: "カーボンナノチューブ新規合成プロセス"ペトロテック. 26・1. 30-35 (2003)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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