添加剂和亚磷酸对Ni^（2＋）、Fe^（2＋）电化学行为的影响

Effects of Organic Additives and Phosphorous Acid on Electrochemical Behaviors of Ni￣(2+) and Fe￣(2+)

在Ｎｉ－Ｆｅ－Ｐ非晶态合金电镀工艺研究中，采用循环伏安法研究了某些有机酸和亚磷酸对Ｎｉ２＋、Ｆｅ２＋在铂电极上的电化学行为的影响。结果认为，甘氨酸、抗坏血酸和丁二酸等均能不同程度地增大Ｎｉ２＋、Ｆｅ２＋的阴极极化，亚磷酸能促进Ｎｉ２＋的还原析出，但阻止Ｆｅ的成核和生长过程。

n the study of electroplating amophous Ni-Fe-P alloy, cyclic voltammetry was employed to investigate the effects of several organic acids and phosphorous acid on electrochemical behavior of Ni2+ and Fe2+. The results showed that glycine, ascorbic acid and succinic acid may increase, to different extents, thecathodic polarization of both Ni2+ and Fe2+ ions. Phosphorous acid gives positive effects on reduction and deposition of Ni2+ ions but adverse effects on nucleus formation and crystal growth of Fe2+ ions.