槐米提取物对Al在HCl溶液中的缓蚀作用

雷然, 石成杰, 李向红

Corrosion Inhibition of Aluminum in HCl Solution by Flos Sophorae Immaturus Extract

LEI Ran, SHI Chengjie, LI Xianghong

表3 Al在20 ℃下含不同浓度FSIE的1.0 mol/L HCl溶液中的动电位极化曲线参数

Table 3 Fitting parameters of potentiodynamic polarization curves of aluminum in 1.0 mol/L HCl solutions containing different concentrations of FSIE at 20 ℃

c / mg·L-1 -Ecorr / mV Icorr / mA·cm-2 -bc / mV·dec-1 ηp / % 0 869 77.64 359 --- 50 925 34.74 239 55.2 250 949 24.62 214 68.3 500 906 7.73 174 90.6