チタニアおよびアルミナ微粒子懸濁水へのγ線照射による水素ガス発生 Hydrogen Gas Evolution from Water-dispersed Titania and Alumina Nanoparticles by γ-Ray Irradiation

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<I>Hydrogen gas evolution induced by</I> <SUP>60</SUP>Co <I>gammaray irradiation of nnoparticles dispersed in water was investigated. Nanoparticles of</I> TiO<SUB>2</SUB> <I>and</I> Al<SUB>2</SUB>O<SUB>3</SUB>, <I>whose average sizes were within the range of 14-33</I> nm, <I>were employed. Hydrogen-gas yield from a sample dispersion in a closed vial was measured by gas chromatography after the irradiation. The sample exhibited much larger hydrogen yields than that in the pure water radiolysis. The hydrogen yield increased with the absorbed dose and the amount of particles dispersed in water. These results support the fact that the reaction is activated by both the</I> γ-<I>ray irradiation and the dispersed particles. In conjunction with results of TEM observation, it was implied that these enhancement effects should depend on the size and/or shape of the particles rather than their chemical species. We calculated the G-values for the hydrogen-gas evolution. They will be useful for the discussion about the reaction.</I>

収録刊行物

  • Radioisotopes  

    Radioisotopes 49(7), 354-358, 2000-07-15 

    公益社団法人 日本アイソトープ協会

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各種コード

  • NII論文ID(NAID)
    10004588138
  • NII書誌ID(NCID)
    AN00351589
  • 本文言語コード
    JPN
  • 資料種別
    NOT
  • ISSN
    00338303
  • NDL 記事登録ID
    5406557
  • NDL 雑誌分類
    ZM35(科学技術--物理学) // ZN36(科学技術--原子力工学・工業) // ZP2(科学技術--化学・化学工業--物理化学) // ZS45(科学技術--医学--放射線医学)
  • NDL 請求記号
    Z15-20
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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