花生壳提取物对冷轧钢在盐酸溶液中的缓蚀作用及机理

仇莉, 李向红, 雷沙, 郭崎, 邓书端

Corrosion Inhibition of Peanut Shell Extract on Cold Rolled Steel in Hydrochloric Acid Solution

QIU Li, LI Xianghong, LEI Sha, GUO Qi, DENG Shuduan

表2 1.0 mol/L HCl溶液中PSE在钢表面的吸附热力学参数

Table 2 Adsorption thermodynamic parameters of PSE on steel surface in 1.0 mol/L HCl solution

T / ℃ ΔG0 / kJ·mol-1 ΔH0 / kJ·mol-1 ΔS0 / J·mol-1·K-1 20 -29.13 52.40 278.12 30 -29.81 98.33 40 -28.76 91.84 50 -26.80 82.93