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Structure and Electronic States of Carbon Onions

Research Project

Project/Area Number 11440093
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 固体物性Ⅰ(光物性・半導体・誘電体)
Research InstitutionKobe University

Principal Investigator

HAYASHI Shinji  Faculty of Engineering, Kobe University, Professor, 工学部, 教授 (50107348)

Co-Investigator(Kenkyū-buntansha) WADA Setsuko  Department of Chemistry, University of Electro-Communications, Kobe University, Associate Professor, 電気通信学部, 助教授 (30017404)
FUJII Minoru  Faculty of Engineering, Kobe University, Research Associate, 工学部, 助手 (00273798)
YANAGI Hisao  Faculty of Engineering, Kobe University, Research Associate, 工学部, 助手 (00220179)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥13,500,000 (Direct Cost: ¥13,500,000)
Fiscal Year 2001: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2000: ¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1999: ¥8,000,000 (Direct Cost: ¥8,000,000)
KeywordsFullerene / Carbon Onions / π electrons / Graphite / Nano-particles / Diamond / Interstellar Dust / ナノカプセル
Research Abstract

In this research project, we have performed a systematic study on the structure, and electronic states of carbon onions and carbon nanocapsules. Major results obtained are summarized as :
1) Structure and electronic states of carbon onions : By annealing the nanodiamond particles 5nm in size in high vacuum, we could mass produce while spherical onions at around 1700℃ and polyhedral onions above 2100℃. Combining the results of high-resolution TEM, EELS, ESR, Raman spectroscopy and X-ray diffraction, we could conclude that the spherical onions have defective structures rather than the perfect fullerene structure. They possess dangling bonds and localized electronic states. On the other hand, the polyhedral onions are more graphitic and contain de-localized πelectrons.
2) Thin films of carbon nanocapsules containing magnetic metallic particles : By means of co-sputtering and post-annealing, we could prepare thin films of carbon nanocapsules containing Ni, and NiCo alloy nanocrystals. By adjusting the alloy composition, the optimum magnetic characteristics could be achieved.
3) Carbon onions as a candidate of interstellar dust : We measured the UV-Visible extinction spectra for carbon onions prepared from nanodiamonds and dispersed in pure water. Measured spectra could successfully be reproduced by theoretical calculations, which assume the aggregation of defective onions dispersed in water. Extending the calculation to an isolated spherical onion placed in vacuum, we could obtain an extinction spectrum that agrees very well with a measured interstellar extinction spectrum. This good agreement strongly suggests that the defective onions are one of the components of the interstellar dust.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (43 results)

All Other

All Publications (43 results)

  • [Publications] Satoshi Tomita: "Electron energy-loss spectroscopy of carbon onions"Chemical Physics Letter. Vol.305. 225-229 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Satoshi Tomita: "A new and simple method for thin graphitic coating of magnetic-metal nanoparticles"Chemical Physics Letters. Vol.316. 361-364 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Satoshi Tomita: "Transformation of carbon onions to diamond by low-temperature heat treatment in air"Diamond and Related Materials. Vol.9. 856-860 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 冨田 知志: "カーボンオニオンの構造と電子状態"季刊フラーレン. 8巻3号. 167-177 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Satoshi Tomita: "Formation of Co filled carbon nanocapsules by metal-template graphitization of diamond nanoparitcles"Journal of Applied Physics. Vol.88,No.9. 5452-5456 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] John C. Dore: "Structural studies of carbon nanotubes and related materials by neutron and x-ray diffraction"Acta Physica Polonica A. Vol.98. 495-504 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Osamu Mamezaki: "Thin films of carbon nanocapsules and onion-like graphitic particles prepared by the cosuputtering method"Japanese Journal of Applied Physics. Vol.39,No.12A. 6680-6683 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Satoshi Tomita: "Structure and electric properties of carbon onions"The Journal of Chemical Physics. Vol.114. 7477-7482 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Satoshi Tomita: "Ni_<1-x>Co_x-C nanogranular thin films prepared by a co-sputtering method : improvement in magnetic properties by optimizing the alloy ratio"Japanese Journal of Applied Physics. Vol.40,No.11. 6370-6374 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Satoshi Tomita: "Ultraviolet-visible absorption spectroscopy of carbon onions"Physics of the Solid States. Vol.44, No.3. 450-453 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Satoshi Tomita: "Diamond nanoparticles to carbon onion transformation : X-ray diffraction studies"Carbon. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hisao Yanagi: "Self-orientation of short single-walled carbon nanotubes deposited on graphite"Applied Physics Letter. Vol.78. 1355-1357 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Setsuko Wada: "Carbonaceous onion-like particles as a component of interstellar dust"Astronomy and Astrophysics. Vol.345. 259-264 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Setsuko Wada: "Structure and UV absorption of QCCs : carbonaceous dust analogues"Adv.Space.Res.. Vol.24. 523-526 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Seiji Kimura: "Formation of micro-diamond by heat treatment of quenched carbonaceous composite(QCC)"Antractic Meteorite Research. Vol.13. 145-152 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 和田 節子: "実験室でスターダストを合成する"日本物理学会誌. Vol.55. 940-946 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Tomita, M. Fujii, S. Hayashi and K. Yamamoto: "Electron energy-loss spectroscopy of carbon onions"Chemical Physics Letters. Vol. 305. 225-229 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Tomita, M. Hikita, M. Fujii, S. Hayashi and K. Yamamoto: "A new and simple method for thin graphitic coating of magnetic-metal nanoparticles"Chemical Physics Letters. Vol. 316. 361-364 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Tomita, M. Fujii, S. Hayashi and K. Yamamoto: "Transformation of carbon onions to diamond by low-temperature heat treatment in air"Diamond and Related Materials. Vol. 9. 856-860 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Tomita, M. Fujii and S. Hayashi: "Structure and electronic states of carbon onions (in Japanese)"Fullerene. Vol. 8, No. 3. 167-177 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Tomita, M. Hikita, M. Fujii, S. Hayashi, K. Akamatsu, S. Deki and H. Yasuda: "Formation of Co filled carbon nanocapsules by metal-template graphitization of diamond nanoparticles"Journal of Applied Physics. Vol. 88, No. 9. 5452-5456 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] J. C. Dore, A. Burian and S. Tomita: "Structural studies of carbon nanotubes and related materials by neutron and x-ray diffraction"Acta Physica Polonica A. Vol. 98. 495-504 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] O. Mamezaki, H. Adachi, S. Tomita, M. Fujii and S. Hayashi: "Thin films of carbon nanocapsuls and onion-like graphitic particles prepared by the cosputtering method"Japanese Journal of Applied Physics. Vol. 39, No. 12A. 6680-6683 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Tomita, T. Sakurai, H. Ohta, M. Fujii and S. Hayashi: "Structure and electronic properties of carbon onions"Japanese Journal of Applied Physics. Vol. 114. 7477-7482 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Tomita, H. Adachi, M. Fujii and S. Hayashi: "Ni_<1-x>Co_x-C nanogranular thin films prepared by a co-sputtering method-improvement in magnetic properties by optimizing the alloy ratio"Japanese Journal of Applied Physics. Vol. 40, No.11. 6370-6374 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Tomita, S. Hayashi, Y. Tsukuda and M. Fujii: "Ultraviolet-visible absorption spectroscopy of carbon onions"Physics of the Solid State. Vol. 44, No. 3. 450-453 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Tomita, A. Burian, J. C. Dore, D. LeBolloch, M. Fujii, S. Hayashi: "Diamond nanoparticles to carbon onions transformation : X-ray diffraction studies"(in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. Yanagi, E. Sawada, A. Manivannan and L. A. Nagahara: "Self-orientation of short single-walled carbon nanotubes deposited on graphite"Applied Physics Letters. Vol. 78. 1335-1337 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Wada, C. Kaito, S. Kimura, H. Ono and A. T. Tokunaga: "Carbonaceous onion-like particles as a component of interstellar dust"Astronomy and Astrophysics. Vol. 345. 259-264 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Wada, C. Kaito, S. Kimura and A. T. Tokunaga: "Structure and UV absorption of QCCs : carbonaceous dust analogues"Adv. Space Res.. Vol. 24. 523-526 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Kimura, C. Kaito and S. Wada: "Formation of micro-diamond by heat treatment of quenched carbonaceous composite (QCC)"Antractic Meteorite Research. Vol. 13. 145-152 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Wada: "Synthesis of stardust in laboratory (in Japanese)"Bulletin of Physical Society of Japan (nihon-buturigakkai-shi). Vol. 55. 940-946 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Satoshi Tomita: "Structure and Electronic Properties of Carbon Onions"The Journal of Chemical Physics. Vol.114. 7477-7482 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Satoshi Tomita: "Ni_<1-x>Co_x Nanogranular Thin Films Prepared by a Co-sputtering Method : Improvement in Magnetic Properties by Optimizing the Alloy Ratio"Japanese Journal of Applied Physics. Vol.40, No.11. 6370-6374 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Satoshi Tomita: "Ultraviolet-visible Absorption Spectroscopy of Carbon Onions"Physics of the Solid State. Vol.44, No.3. 450-453 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Satoshi Tomita: "Diamond Nanoparticles to Carbon Onion Transformation : X-ray Diffraction Studies"Carbon. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 冨田知志: "カーボンオニオンの構造と電子状態"季刊フラーレン. 8巻3号. 167-177 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Satoshi Tomita: "Formation of Co filled carbon nanocapsules by metal-template graphitization of diamond nanoparticles"Journal of Applied Physics. Vol.88,No.9. 5452-5456 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Osamu Mamezaki: "Thin films of carbon nanocapsules and onion-like graphitic particles prepared by the cosputtering method."Japanese Journal of Applied Physics. Vol.39,No.12A. 6680-6683 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Satoshi Tomita : "Transformation of carbon onions to diamond by low-temperature heat treatment in air."Diamond and Related Materials. Vol.9. 856-860 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Satoshi Tomita: "Structure and electronic properties of carbon onions "Journal of Chemical Physics . (in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] S,Tomita: "Electron energy-loss spectroscopy of carbon onions"Chemical Physics Letters. 305巻. 225-229 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] S.Tomita: "A new and simple method for thin graphitic coating of magnetic-metal nano particles"Chemical Physics Letters. 316巻. 361-364 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2020-05-15  

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