高温高圧水用固体電解質型照合電極の開発 Development of Solid Electrolyte Reference Electrode for High Temperature Water System

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A newly designed solid electrolyte internal reference electrode has been developed for electrochemical measurement in high temperature water systems. This reference electrode is composed of an yttria stabilized zirconia (YSZ) disk electrode with a sputter-deposited Ni·NiO composite film on the backside, an asbestos plug soaked with a neutral phosphate buffer solution as an internal solution and an oxidized zircaloy-4 body. The thermodynamic response of the YSZ reference electrode has been confirmed in phosphate buffer solutions (pH4.4-9.3) with an Ag/AgCl (0.1kmol·m<sup>-3</sup>KCl) internal reference electrode at temperatures up to 523K. It was found that the potential of the YSZ reference electrode has the following linear relationship with temperature:<br>E<sub>YSZ/Ni·NiO</sub>=2395-5.37T/mVvs. SHE<br>Using the YSZ reference electrode, the measurement of anodic polarization curves of Type 304 stainless steel in a 0.5kmol·m<sup>-3</sup>Na<sub>2</sub>SO<sub>4</sub> solution at temperatures up to 563K has been performed. Anodic polarization curves measured with the YSZ reference electrode coincided with those with the Ag/AgCl internal reference electrode in the temperature range from 473K to 563K.

収録刊行物

  • 材料と環境 : zairyo-to-kankyo  

    材料と環境 : zairyo-to-kankyo 47(8), 528-533, 1998-08-15 

    Japan Society of Corrosion Engineering

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各種コード

  • NII論文ID(NAID)
    10002174844
  • NII書誌ID(NCID)
    AN10235427
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09170480
  • NDL 記事登録ID
    4546083
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-266
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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