苯甲酸钠在酸性Zn-Ni镀液中对Zn阳极溶解行为影响的研究

刘永强, 刘光明, 范文学, 唐荣茂, 甘鸿禹, 师超

Effect of Sodium Benzoate on Dissolution Behavior of Zn Anode in Acidic Zn-Ni Plating Bath

LIU Yongqiang, LIU Guangming, FAN Wenxue, TANG Rongmao, GAN Hongyu, SHI Chao

表1 酸性Zn-Ni镀液中含不同浓度SB时Zn极化曲线的拟合参数

Table 1 Fitting parameters of polarization curves of Zn in acidic Zn-Ni plating baths containing different concentrations of SB

Content mg·L-1 EcorrV IcorrA·cm-2 βaV·dec-1 -βcV·dec-1 ηi % 0 -1.22 13.80×10-5 8.61 6.96 --- 30 -1.17 5.38×10-5 13.24 10.67 60.98 60 -1.04 4.24×10-5 8.97 7.80 69.31 90 -0.96 3.28×10-5 8.68 7.82 76.29 120 -0.92 2.73×10-5 9.98 8.34 80.24