Hydrogen Permeation of Thin Pd-25Ag Membranes Prepared by Cold Rolling and Microsystem Technology

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著者

    • Zhang Yi ZHANG Yi
    • Networked MEMS Technology Group, Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
    • Lu Jian LU Jian
    • Networked MEMS Technology Group, Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
    • Maeda Ryutaro [他] MAEDA Ryutaro
    • Networked MEMS Technology Group, Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
    • NISHIMURA Chikashi
    • Hydrogen Purification Materials Group, Fuel Cell Materials Center, National Institute of Materials Science

抄録

Hydrogen permeation of thin Pd-25Ag membranes with the thickness down to 1.2 μm was investigated by conventional gas permeation method within the temperature range of 473–673 K. The thin Pd-25Ag membranes with the thickness down to 51 μm were prepared by cold rolling method. The 1.2 μm-thick Pd-25Ag membrane was prepared by microsystem technology. The hydrogen permeation of the prepared Pd-25Ag membranes was independent of the membrane thickness until down to 51 μm. The 51 μm-thick Pd-25Ag membrane had the hydrogen permeability lower by 60% than that of the bulk Pd-25Ag metal. It mainly resulted from slow surface reaction and lower hydrogen solubility near the surface of the 51 μm-thick Pd-25Ag membrane. The hydrogen permeability of the 1.2 μm-thick Pd-25Ag membrane was one order lower than that of bulk Pd-25Ag metal because the hydrogen permeation was mainly limited by surface reaction. However, literature review indicated that the microfabricated 1.2 μm-thick Pd-25Ag membrane had the hydrogen permeability superior to those conventional Pd-25Ag membranes supported by porous materials, suggesting attractive advantages of the microsystem technology in hydrogen-separation membrane applications.

収録刊行物

  • Materials transactions

    Materials transactions 49(4), 754-759, 2008-04-01

    The Japan Institute of Metals and Materials

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各種コード

  • NII論文ID(NAID)
    10021145737
  • 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
    9447324
  • 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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