純鎳鈍化膜的電化學性能

Electrochemical Behaviour of Passive Film on Pure Nickel Surface

摘要: 為了搞清鎳的鈍化行為,本文用極化曲線法及交流阻抗技術,通過對純鎳在中性H₃BO₃-Na₂B₄O₇溶液及添加了K₃Fe(CN)₆/K₄Fe(CN)₆氧化-還原系溶液中的極化行為及交流阻抗特性的研究,討論了鈍化膜的電模型和電極反應。

Abstract: This report described a study on polarization behaviour and AC impedance character of pure nidkel in neutral solution of H₃BO₃-Na₂B₄O₇ and in redox solution of H₃BO₃-Na₂B₄O₇ + K₃Fe (CN)₆/K₄Fe(CN)₆ by means of polarization curve and impedance techniques. The electrode reaction and electro-model of passive film are also discussed.