Role of different metal precursors based MOFs for boosting anti-corrosion performance of mild steel in acid media
Sherief A. Al Kiey, Mahmoud El‐Shahat, Reda M. Abdelhameed
Abstract
Benefiting from their significant features such as large specific surface area , adjustable structure and function, regular pore arrangement, and abundant active sites, metal organic frameworks (MOFs) exhibit great application prospects as anti-corrosion materials. Herein, (M-BTC, M = Mn, Fe, and Co, and BTC = benzenetricarboxylate) was prepared under solvothermal conditions and used as a highly efficient inhibitor for the protection of mild steel. The microstructure and physicochemical properties of the compounds were determined by powder X-ray diffraction (PXRD), Fourier transform infrared (FT-IR), N 2 -adsorption, and microscopic analysis. The addition of MOF-based corrosion inhibitors decreases the rate of mild steel surface corrosion in acidic media due to the formation of an adsorbed layer on the metal surface . The inhibition mechanisms obey the Langmuir adsorption isotherm . A Mn-MOF based corrosion inhibitor recorded an inhibition efficiency of 94.7% at 200 ppm. At the end, the future outlooks of prepared MOFs for corrosion protection are provided. We hope this work will illuminate the achievement of high-performing anticorrosion MOFs and offer new ideas for the development of MOF-based materials for future corrosion protection applications.