Synthesis and Protium Absorbing Properties of Vapor Grown Carbon Nano-Fibers Grown by Fe-based Catalyst

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Vapor grown carbon nano-fibers (VGCFs) were synthesized by using Fe ingots, Fe powders, nanocrystalline Fe<SUB>91</SUB>Zr<SUB>7</SUB>B<SUB>2</SUB> and Fe<SUB>75</SUB>Si<SUB>15</SUB>B<SUB>10</SUB> alloy catalysts with fine bcc-Fe grains (∼ 20 nm). The Fe particles worked as catalysts were formed by fracturing original Fe ingots, Fe powders, and nanocrystalline alloys before the formation of VGCFs. TEM and HREM observations indicated that VGCFs’ structures turned out to be platelet type grown from Fe powders and Fe<SUB>91</SUB>Zr<SUB>7</SUB>B<SUB>2</SUB>, and the tubular type grown from nanocrystalline Fe<SUB>75</SUB>Si<SUB>15</SUB>B<SUB>10</SUB> alloy. In addition to these structures, VGCFs grown from Fe ingots exhibited herringbone and coil type structures. Diameter of VGCFs prepared from nanocrystalline Fe<SUB>75</SUB>Si<SUB>15</SUB>B<SUB>10</SUB> alloy was smaller than that of grown from Fe<SUB>91</SUB>Zr<SUB>7</SUB>B<SUB>2</SUB> alloy. This could be originated from the difference of fracturing process between nanocrystalline Fe<SUB>91</SUB>Zr<SUB>7</SUB>B<SUB>2</SUB> and Fe<SUB>75</SUB>Si<SUB>15</SUB>B<SUB>10</SUB> alloys. Protium absorbing properties of VGCFs were evaluated by a Siverts-type apparatus and electrochemical method. It turned out that VGCFs had little protium absorbing capacity.

収録刊行物

  • Materials transactions

    Materials transactions 43(5), 1127-1132, 2002-05-01

    公益社団法人 日本金属学会

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各種コード

  • NII論文ID(NAID)
    10012323632
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    6180371
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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