This study aims to develop a novel volatile corrosion inhibitor for mild steel by preparing a nanocomposite (ZIF-AD) through a salt-forming reaction between aspartic acid (AD) and di-n-butylamine, with zeolitic imidazolate framework-8 (ZIF-8) as the template material.
The ZIF-8’s porous structure is beneficial to disperse AD molecules, reducing agglomeration and enhancing volatility. Under ambient atmosphere, ZIF-AD achieves corrosion inhibition properties through volatilization and adsorption.
It demonstrates that a protective film is formed on mild steel surfaces, effectively inhibiting the cathodic process of corrosion. Compared to AD alone, the incorporation of ZIF-8 increased the inhibition efficiency to 91%.
These findings highlight the potential of ZIF-AD as a highly efficient corrosion inhibitor for mild steel in atmospheric environments.
