The inhibition performances of the inhibitors C₈TAB-MP (a mixture of octyltrimethylammonium bromide (C₈TAB) and 4-mercaptopyridine (4MP)), C₈TAB and 4MP toward A₃ steel in 0.5 M hydrochloric acid solution were studied at 25°C. The studied inhibitors worked in a hybrid form, mainly controlling the cathodic reaction. Their adsorption follows the Langmuir isotherm, and the compositional combination is superior to the sum of their individual properties. The highest inhibition efficiency of C₈TAB-MP was 99.4% at a concentration of 200 mg/l. The surface morphologies of samples were obtained from atomic force microscopy tests. The synergistic effect between C₈TAB and 4MP was due to the C₈TAB molecules donating electrons and the 4MP molecules accepting electrons.

中文翻译：

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表面活性剂对钢铁缓蚀剂的协同作用研究

研究了缓蚀剂C _{8 TAB-MP（辛基三甲基溴化铵（C 8} TAB）和4-巯基吡啶（4MP）的混合物）、C ₈ TAB和4MP在0.5 M盐酸溶液中对A ₃钢的缓蚀性能。 °C。研究的抑制剂以混合形式起作用，主要控制阴极反应。它们的吸附遵循朗缪尔等温线，并且成分组合优于它们各自特性的总和。 C ₈ TAB-MP在浓度为200 mg/l时的最高抑制效率为99.4%。样品的表面形貌是通过原子力显微镜测试获得的。 C ₈ TAB和4MP之间的协同效应是由于C ₈ TAB分子提供电子而4MP分子接受电子。