Studies of Electrochemistry Properties of F ions in Plating Solution for Tin Free Steel

doi:10.6023/A1106103

Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (02): 128-132.DOI: 10.6023/A1106103 Previous Articles Next Articles

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无锡钢电镀溶液中氟离子电化学行为的研究

李建中, 王玉成, 田彦文, 陶绍虎, 孙秀丽

东北大学材料与冶金学院沈阳 110004

投稿日期:2011-06-10 修回日期:2011-09-20 发布日期:2012-02-25
通讯作者: 李建中 E-mail:lijz@smm.neu.edu.cn
基金资助:
国家自然科学基金(No.51004028)和中央高校基本科研业务费(No.N100402002)资助项目.

Studies of Electrochemistry Properties of F ions in Plating Solution for Tin Free Steel

Li Jianzhong, Wang Yucheng, Tian Yanwen, Tao Shaohu, Sun Xiuli

School of Metallurgy and Materials, Northeastern University, Shenyang 110004

Received:2011-06-10 Revised:2011-09-20 Published:2012-02-25
Supported by:
Project supported by the National Natural Science Foundation of China (No.51004028) and the Special Fund for Basic Scientific Research of Central Colleges (No.N100402002).

Abstract

Electrochemistry action of F ions in the TFS (tin free steel) plating solution was investigated by means of A.C. voltammetry, electrochemical impedance spectrum (EIS) and Mott-Schottky analysis technology. The A.C. voltammetry results showed that F ions have a characteristic of inhibiting the chemical state transition of Cr ions, decreasing the oxide current density of lead alloy and lead oxide anode, and influencing the oxidation and reduction mechanism of lead alloy and lead oxide anode. Polymer for Cr and O ions cluster might be formed under conditions of electric field. In addition, inductive reactance phenomenon was observed on EIS for lead alloy anode in Cr ions solution. The properties of F ions solution were found to eliminate the inductive reactance phenomenon, and increase obviously the conducting ability of Cr ions solution. According to analysis of Mott-Schottky, carrier concentrations of anode materials were increased by being added F ions, and anode of lead alloy and lead oxide exhibited an n-type semiconductive character.

Key words: tin free steel (TFS), anodic material, electrochemical property, F ions

Cite this article

Li Jianzhong, Wang Yucheng, Tian Yanwen, Tao Shaohu, Sun Xiuli. Studies of Electrochemistry Properties of F ions in Plating Solution for Tin Free Steel[J]. Acta Chimica Sinica, 2012, 70(02): 128-132.

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无锡钢电镀溶液中氟离子电化学行为的研究

Studies of Electrochemistry Properties of F ions in Plating Solution for Tin Free Steel

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