无锡钢电镀过程中阳极材料电化学特性  

Electrochemical Performance of Anodic Materials in TFS Plating Process

作　　者：付高峰[1] 李建中[1] 陶绍虎[1] 田彦文[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2011年第12期1729-1732,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(51004028);中央高校基本科研业务费专项资金资助项目(N100402002)

摘　　要：研究了不同阳极在含铬溶液、含氟溶液和铬氟混合溶液中的交流阻抗谱,旨在弄清电镀过程中阳极材料的电化学特性.结果表明,铬离子、氟离子和铬氟混合离子在溶液中聚合形式对阳极材料的电化学特性有着重要影响.碳阳极和铅合金阳极在含铬溶液中可形成感抗现象,具有较小的极化电阻,而铅氧化物阳极在含铬溶液中具有较大的极化电阻.在铬氟离子混合溶液中,碳阳极和铅合金阳极表面感抗现象消失,且碳阳极极化电阻提高,铅氧化物阳极极化电阻降低,但铅合金阳极极化电阻明显高于碳阳极和铅氧化物阳极;铅氧化物阳极的导电能力大大提高.To reveal the electrochemical performance of anode materials in the plating process of TFS products,the electrochemical impedance spectrum（EIS） of anodic materials in Cr ion solution,F ion solution and the mixture of Cr and F ion solutions was investigated via an electrochemistry work station.The results show that the polymerization structures of Cr ion,F ion and the mixture of Cr-F ions on anode surface have a remarkable effect on the electrochemical performance of the anode materials.Inductive reactance phenomenon is observed on EIS for C anode and lead alloy anode in Cr ion solution,and their polarization resistance value are small.Polarization resistance value of lead oxide anode is relatively higher.When F ions are added into Cr ion solution,the inductive reactance phenomenon of C anode and lead alloy anode surface disappears in the mixture of Cr-F ion solution,while the polarization resistance value of C anode increases and that of lead oxide anode decreases.But the polarization resistance value of lead alloy anode is higher than those of C anode and lead oxide anode.The conductance of lead oxide anode is improved greatly in the mixture of Cr-F ion solution.

关 键 词：无锡钢 阳极 电镀 交流阻抗谱 铬离子 氟离子 

分 类 号：TF803.27[冶金工程—有色金属冶金]