イリジウムめっきチタン電極の電気化学的挙動 Electrochemical Behavior of Iridium-Electroplated Titanium Electrode

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Iridium-oxide-coated titanium electrodes used for oxygen and chlorine evolution are usually prepared using a complicated thermal decomposition process. To simplify preparation iridium was plated on to a titanium substrate and the plated iridium oxidized by electrolysis or heating. The electrode's electrochemical behavior after electrolysis or heating to oxidize iridium was studied in H<sub>2</sub>SO<sub>4</sub> and NaCl solutions. When the electrode was electrolyzed in NaCl solution for 500 cycles using a rectangular wave of ±75mA/cm<sup>2</sup>, the overpotential for oxygen or chlorine evolution was marked reduced, due perhaps to two reasons for this. One involves the formation of iridium hydroxide by electrolysis, which indicates catalytic activity. The other involves cracks formed on the electrode surface by electrolysis, which increases the electrode surface and decreases the real current density and overpotential.

収録刊行物

  • 表面技術 = The Journal of the Surface Finishing Society of Japan  

    表面技術 = The Journal of the Surface Finishing Society of Japan 49(1), 68-72, 1998-01-01 

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002108511
  • NII書誌ID(NCID)
    AN1005202X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09151869
  • NDL 記事登録ID
    4367226
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-291
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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