咖啡果皮提取物对钢在三氯乙酸溶液中的缓蚀性能

穆显菊, 李向红, 雷然, 邓书端

Inhibitory Action of Coffee Skin Extract on Corrosion of Steel in Trichloroacetic Acid Solution

MU Xianju, LI Xianghong, LEI Ran, DENG Shuduan

表4 在20℃下，冷轧钢在不含和含有CSE的Cl₃CCOOH溶液中的EIS拟合参数

Table 4 Fitting parameters of EIS of cold rolled steel in Cl₃CCOOH solutions without and with CSE at 20^oC

c mg·L^-1	R_s Ω·cm²	R_t Ω·cm²	R_L Ω·cm²	χ² 10^-3	a	CPE μΩ^-1·s ^a ·cm^-2	C_dl μF·cm^-2	$η_{R}$ %
0	9.9	4.8	9.6	44.5	0.8337	1920.0	760.4	-
50	19.2	12.8	83.2	43.9	0.8963	379.0	200.8	71.2
250	14.1	110.5	2260.0	1.3	0.8698	94.2	49.0	97.0
500	11.7	215.0	1479.0	1.0	0.8394	79.3	35.5	98.3