L-Phenylalanine (L-Phe) is a promising eco-friendly alternative to replace the conventional toxic inhibitors for magnesium alloys in NaCl solution. However, its inhibitory performance is not satisfied. The addition of slight amount Zn(NO₃)₂ would greatly refine the inhibitory efficiency. The inhibitory performance of hybrid inhibitor is explored by scanning electron microscopy (SEM) along with energy dispersive X-ray spectroscopy (EDS), X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS), and various electrochemical measurements. The highest inhibitory efficiency of 93.2% is achieved for 0.30 mM L-Phe + 0.07 mM Zn(NO₃)₂. The amount of each inhibitor and the suitable match of two inhibitors are carefully determined, which are both critical items for the final performance. The possible inhibitory mechanism is conjectured by the XRD and XPS measurements along with the quantum chemical calculations.

L-苯丙氨酸（L-Phe）是一种有前途的环保替代品，可以代替NaCl溶液中常规的镁合金有毒抑制剂。但是，其抑制性能不能令人满意。微量Zn（NO ₃）_2的添加将极大地改善抑制效率。通过扫描电子显微镜（SEM）以及能量色散X射线光谱仪（EDS），X射线衍射仪（XRD），X射线光电子能谱（XPS）和各种电化学测量来探索杂化抑制剂的抑制性能。0.30 mM L -Phe + 0.07 mM Zn（NO ₃）₂的最高抑制效率达到93.2％。仔细确定每种抑制剂的量和两种抑制剂的合适配比，它们都是最终性能的关键项目。XRD和XPS测量以及量子化学计算推测出了可能的抑制机理。