The hydrotalcite-like (HT) coatings can provide an enhanced interfacial barrier to protect Mg alloys from corrosion. Therefore, 8-quinolinol (8Q), a green corrosion inhibitor, was intercalated in MgAl-based HT with varying concentration and pH values. The results revealed that the corrosion resistance was significantly improved when the pH of the solution was maintained at 10 with a 0.30 M concentration of 8Q. The hydrophobicity was also introduced to MgAl HT with the intercalation of 8Q, which was retained even after the long immersion. Furthermore, the self-healing performance of 8Q-intercalated HT was confirmed by single-frequency electrochemical impedance spectroscopy (EIS), which is a suitable method for in-situ evaluation of self-healing herein reported for the first time to evaluate the HT coatings. This thorough investigation of the hydrophobic MgAl HT coating is meaningfully supportive for researchers and engineers to have a deep understanding of its possibility for real-world applications in the area of corrosion and prevention.

类水滑石（HT）涂层可提供增强的界面屏障，以保护镁合金免受腐蚀。因此，绿色缓蚀剂8-喹啉醇（8Q）插入了具有不同浓度和pH值的基于MgAl的HT中。结果表明，当溶液的pH值保持在10且0.30 M浓度为8Q时，耐蚀性得到了显着改善。疏水性也通过插入8Q引入到MgAl HT中，即使长时间浸泡也可以保留。此外，通过单频电化学阻抗谱（EIS）证实了8Q嵌入的HT的自修复性能，这是本文首次报道的用于评估HT涂层的自修复的合适方法。 。