纯镍钝化膜的电化学性能

Electrochemical Behaviour of Passive Film on Pure Nickel Surface

摘要: 为了搞清镍的钝化行为,本文用极化曲线法及交流阻抗技术,通过对纯镍在中性H₃BO₃-Na₂B₄O₇溶液及添加了K₃Fe(CN)₆/K₄Fe(CN)₆氧化-还原系溶液中的极化行为及交流阻抗特性的研究,讨论了钝化膜的电模型和电极反应。

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.