ZnAl layered double hydroxide (ZnAl-LDH-VOx-La-one step) film co-intercalated with inhibitors (vanadates) and low-surface-energy substance (laurates) was prepared on Al substrate by a hydrothermal method followed by a one-step modification process in the mixed solution of vanadates and laurates. The morphology, composition and structure was characterized carefully by scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and X-ray diffraction (XRD). The obtained results indicated that vanadates and laurates were successfully intercalated in the LDH interlayer space. The corrosion protection ability of this film was evaluated by electrochemical impedance spectra (EIS). It was demonstrated that ZnAl-LDH-VOx-La-one step film could provide more effective protection for the underlying Al substrate compared with ZnAl-LDH films only intercalated with vanadates or laurates, most importantly, even better protection than that of the sample prepared by two steps with the resistance of the inner LDH layer almost four times higher after immersion in 3.5 wt% NaCl for 1 h.

通过水热法在一步法制备铝基复合双氢氧化物（ZnAl-LDH-VOx-La-一步）与抑制剂（钒酸盐）和低表面能物质（月桂酸盐）共插层钒酸盐和月桂酸盐混合溶液中的修饰过程。通过扫描电子显微镜（SEM），能量色散光谱仪（EDS）和X射线衍射（XRD）仔细地表征了形态，组成和结构。获得的结果表明，钒酸盐和月桂酸盐已成功插入LDH夹层空间中。通过电化学阻抗谱（EIS）评估该膜的腐蚀防护能力。