Novel Bio-Based Green and Sustainable Corrosion Inhibitors: Development, Characterization, and Corrosion Inhibition Applications

Novel Bio-Based Green and Sustainable Corrosion Inhibitors: Development, Characterization, and Corrosion Inhibition Applications

Mohamed Rbaa, Mouhsine Galai, Elyor Berdimurodov, Burak Tüzün, Mohamed Ebn Touhami, Abdelkader Zarrouk, Brahim Lakhrissi, Amr Elgendy
Copyright: © 2023 |Pages: 19
DOI: 10.4018/978-1-6684-7689-5.ch012
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Abstract

Development of non-toxic and sustainable corrosion inhibitors is greatly needed, in view of these several forms of green corrosion inhibitors natural Chitosan oligosaccharide gained substantial advancement. In this book chapter, the Chitosan oligosaccharide was modified with an 8-hydroxyquinoline derivative to develop a novel bio-based, green, and sustainable mild steel corrosion inhibitor. Fourier transform infrared spectroscopy and nuclear magnetic resonance were used to characterize the modified oligosaccharide. Electrochemical measurements as well as theoretical investigations have been used to examine the anti-corrosion ability of developed chitosan. Electrochemical results confirm that the modified Chitosan oligosaccharide is a mixed type of inhibitor for mild steel. The experimental results have been in agreement with the theoretical study, which has shown that the developed material exhibits the excellent anti-corrosive activity for mild steel in Hydrochloric acid.
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Main Focus Of The Chapter

The purpose of the present work is the development of a new bio-based inhibitor for mild steel corrosion based on the oligo-chitosan grafted by an 8-hydroquinoline derivative. This selected inhibitor is the green and environmental friendly inhibitor. The synthesis procedure of this corrosion inhibitor is economically efficient. Next plus point of this inhibitor is that it formed a more protective and thermodynamic stable protective film on the metal surface. These properties make this inhibitor to be effective and green for mild steel in 10% hydrochloric acid. The modified oligo-chitosan structure was evaluated using 13C/1H NMR and FT-IR spectroscopy analysis. The anti-corrosion properties of this bio-based material have been obtained by experimental (EIS and PDP) and theoretical (DFT and MD) methods. The corrosion solutions were analyzed by UV-visible and ICP-OES analysis. Lastly, the experimental results were compared to the theoretical ones.

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