Effect of Potassium Cyanide on Kinetics of Zinc Electroplating from Tetrahydroxozincate Solutions

V. Rezaite; R. Vishomirskis

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Effect of Potassium Cyanide on Kinetics of Zinc Electroplating from Tetrahydroxozincate Solutions

机译：氰化钾对四氢氧嗪酸盐溶液电镀锌动力学的影响

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By the method of chronopotentiometry, it is shown that, being added to tetrahydroxozincate baths, potassium cyanide affects the kinetic parameters of zinc electroplating, by increasing the slope of Tafel plot, decreasing the cathodic transfer coefficient, and reducing the exchange current. The effect strengthens with a decrease in zinc concentration in the bath; the limiting current of zinc deposition loses its diffusion nature. The results reveal the decisive effect of CN ions on the composition and properties of interface layers formed at a zinc cathode during the electrolysis.

机译：通过计时电位法表明，氰化钾被添加到四氢氧嗪酸盐浴中，会通过增加塔菲尔图的斜率，降低阴极转移系数并降低交换电流来影响电镀锌的动力学参数。随着镀液中锌浓度的降低，效果会增强。锌沉积的极限电流失去了其扩散特性。结果表明，CN离子对电解过程中锌阴极上形成的界面层的组成和性能具有决定性作用。

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《Protection of Metals》 |2001年第4期|共4页
作者
V. Rezaite; R. Vishomirskis;
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中图分类金属腐蚀与保护、金属表面处理;
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2. Effect of Potassium Cyanide on Kinetics of Zinc Electroplating from Tetrahydroxozincate Solutions [J] . V. Rezaite, R. Vishomirskis Protection of Metals . 2001,第4期

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Effect of Potassium Cyanide on Kinetics of Zinc Electroplating from Tetrahydroxozincate Solutions

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