无锡钢电镀过程中阳极材料电化学特性

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.

Electrochemical Performance of Anodic Materials in TFS Plating Process

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 p...