Corrosion inhibition of steel in acidic media using bio-waste extract: Experimental and theoretical consideration
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Date
2023
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Abstract
This thesis discusses chemical processes, types, economic effects, and remedies of corrosion as background studies. The thesis focuses on finding green corrosion inhibitors from various bio-wastes, such as solid waste from tea factories (food-industrial waste), purple rice bran (agro-byproduct), banana flower bract, and onion peel (kitchen waste). The corrosion inhibition efficiency was determined in acidic media (HCl and H2SO4) on boiler-quality steel. The main objectives were (a) Extraction and characterization of green corrosion inhibitors, (b) Electrochemical kinetic study of inhibitors using potentiodynamic polarization on boiler quality study in acidic media to find out their corrosion rate and corrosion current, (c) Study on inhibition mechanism using electrochemical impedance spectroscopy, (d) Adsorption kinetics to find the type of adsorption, (e) Theoretical studies of inhibitory molecules identified in the extract. The entire work of this thesis has been divided into four significant chapters as follows:
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Supervisor: Das, Chandan
Keywords
Corrosion Inhibition, Bio-extract, Electrochemistry