EIS ANALYSIS ON THE ANODIC PROCESS OF ZINC IN AN ALKALINE SOLUTION

金属学报(英文版), 2004, 17(6): 912-922.

^1, , ^2, , ^3, , ^4, , ^5,

1.Department of Chemistry, Zhejiang University, Hangzhou 310027, China

2.Department of Chemistry, Zhejiang University, Hangzhou 310027, China

3.Department of Chemistry, Zhejiang University, Hangzhou 310027, China

4.Department of Chemistry, Zhejiang University, Hangzhou 310027, China;Chinese State Key Laboratory for Corrosion and Protection, Institute of Metal Reseach, The Chinese Academy of Sciences, Shenyang 110016, China

5.Department of Chemistry, Zhejiang University, Hangzhou 310027, China;Chinese State Key Laboratory for Corrosion and Protection, Institute of Metal Reseach, The Chinese Academy of Sciences, Shenyang 110016, China

基金项目: 国家重点实验室基金国家自然科学基金

EIS ANALYSIS ON THE ANODIC PROCESS OF ZINC IN AN ALKALINE SOLUTION

Keywords： Zn

The EIS on the anodic process of pure Zn in an alkaline solution were performed and fitted using the expression of Faradic admittance, based on which the mechanism of the process was proposed. The results showed that besides electrode potential E the electrochemical reaction rate was affected by the adsorption of Zn(OH)ads on the electrode surface and the diffusion of in the electrolyte in active region, and only by the covering of passivation layer on the electrode surface in both transitive and passivation regions. The equivalent circuits applied in these various circumstances were proposed and the variation of some parameters and state variables was also discussed.

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EIS ANALYSIS ON THE ANODIC PROCESS OF ZINC IN AN ALKALINE SOLUTION

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