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1 文献中报道的不同植物提取物作为缓蚀剂时对钢在不同溶液中的缓蚀率

Table 1 Corrosion inhibition efficiencies of various typical plant extracts for steels in acid solutions

Inhibitor T / ℃ Acid c (Inhibitor) η / % Ref. Moringa oliefera extract 30 0.5 mol·L-1 H2SO4 1500 mg·L-1 93 [12] Soybean meal extract 40 1.0 mol·L-1 HCl 800 mg·L-1 92 [13] Rheum ribes leaf extract 20 1.0 mol·L-1 HCl 1000 mg·L-1 89 [14] Maple leaves extract 20 0.5 mol·L-1 H2SO4 200 mg·L-1 MLE + 200 mg·L-1 KI 93 [15] Houttuynia cordata extract 20 0.5 mol·L-1 H2SO4 1500 mg·L-1 96 [16] Brainea insignis extract 30 1.0 mol·L-1 HCl 560 mg·L-1 94 [17] Bamboo leaves extract 20 0.1 mol·L-1 Cl3CCOOH 200 mg·L-1 96 [18] Walnut green husk extract 30 1.0 mol·L-1 HCl 500 mg·L-1 WGHE + 1000 mg·L-1 Nd(NO3)3 90 [19]