パルスアーク放電で作製したカーボンナノホーンに含まれる巨大グラファイトボールの起源とその除去法 Origin of giant graphite balls including in the carbon nanohorns prepared by pulsed arc-discharge and their removal method

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著者

    • 山口 貴司 YAMAGUCHI Takashi
    • 名城大学大学院理工学研究科電気電子・情報・材料工学専攻 Division of Electrical, Electronic, Information and Materials Engineering, Graduate School of Science and Technology : Meijo University
    • 坂東 俊治 BANDOW Shunji
    • 名城大学大学院理工学研究科電気電子・情報・材料工学専攻 Division of Electrical, Electronic, Information and Materials Engineering, Graduate School of Science and Technology : Meijo University
    • 飯島 澄男 IIJIMA Sumio
    • 名城大学大学院理工学研究科電気電子・情報・材料工学専攻 Division of Electrical, Electronic, Information and Materials Engineering, Graduate School of Science and Technology : Meijo University

抄録

Large sized spherical graphitic particles with the diameter as large as several micrometers, so called giant graphite balls (GGBs), are more or less included in the sample of carbon nanohorns (CNHs) which are prepared by the method of pulsed arc-discharge or laser ablation. For the use of CNHs in the application, it is needed to decrease such impurity from the sample. In order to find a way to decrease the GGBs content, we investigate the origin of GGBs and find a simple method for increasing the sample purity. The origin of GGBs is the exfoliated materials from the carbon rod, and such an exfoliation can be nearly avoided by the preheat treatment of the carbon rod up to 1000°C just in advance of the arc vaporization. According to this preheat, the quantity of GGBs in the sample can be reduced from 30 to 0.01 % (100 ppm) by weight. In addition, it was found that the simple two-staged purification which is combined with the centrifugation and filtration effectively works for removing such a small quantity of GGBs.

収録刊行物

  • 炭素  

    炭素 (232), 72-76, 2008-03-28 

    THE CARBON SOCIETY OF JAPAN

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各種コード

  • NII論文ID(NAID)
    10021127636
  • NII書誌ID(NCID)
    AN00140335
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03715345
  • NDL 記事登録ID
    9453678
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z17-230
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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