Anti-corrosion and adsorption properties of 2-(2-Methyl-5-nitro-1H-imidazol-1-yl) ethanol: electrochemical and computational chemistry investigation

Résumé

Because conventional inhibitors are nonbiodegradable and harmful, the development of eco-friendly corrosion inhibitors is gaining popularity. The anti-corrosive efficacy of 2-(2-Methyl-5-nitro-1H-imidazol-1-yl) ethanol on carbon steel in an chloride solution was evaluated in this study using a variety of approaches such as electrochemical measurements and computational studies. The results showed that increasing the concentration of 2-(2-Methyl-5-nitro-1H-imidazol-1-yl) ethanol from 0.1 to 3.0 g/L enhanced the inhibition efficiency (IE%) to 90.18-91.71 %. The high ΔE(eV) value of 0.239 and the interaction and binding energies of − 995.45 and 995.45 for 2-(2-Methyl-5-nitro-1H-imidazol-1-yl) ethanol molecules onto Fe (110) substrate were further supported by quantum chemical analytics, which also supported the empirical results. The results show that 2-(2-Methyl-5-nitro-1H-imidazol-1-yl) ethanol has a bright future as an effective and environmentally safe inhibitor for preventing carbon steel from corroding in corrosive media.

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