Assessing the impact of electron-donating-substituted chalcones on inhibition of mild steel corrosion in HCl solution: Experimental results and molecular-level insight

Chaouiki, Abdelkarim and Lgaz, Hassane and Salghi, Rachid and Chafiq, M and Oudda, H and Shubhalaxmi, . and Bhat, K.S. and Cretescu, I and Ali, I H and Marzouki, R and Chung, I M (2020) Assessing the impact of electron-donating-substituted chalcones on inhibition of mild steel corrosion in HCl solution: Experimental results and molecular-level insight. Colloids and Surfaces B: Biointerfaces, 588. ISSN 0927-7765

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Abstract

Material corrosion is one of the outstanding challenging problems in the industry, and it strongly influences refining and petrochemical plants lifetime. Therefore, prevention of the corrosion of different metals and alloys is imperative in the viewpoint of industrial safety and productivity. For this purpose, the application of suitable corrosion inhibitors is one of the most applicable solutions. The present paper focuses on the anticorrosive properties of three biologically active chalcones, namely (E)-2-(4-(3-(2,5 dimethoxyphenyl)acryloyl) phenoxy) acetic acid (AA-3), 2-(4-(3-(4-methoxyphenyl)propanoyl)phenoxy)acetic acid (AA-2) and (E)-2-(4-(3-(p-tolyl) acryloyl)phenoxy)acetic acid (AA-1) for mild steel in hydrochloric acid at temperature range 303−333 K. The corrosion inhibition performances of chalcones were evaluated by electrochemical tests, gravimetrical method, SEM, molecularorbital theoryand molecular dynamics (MD) simulations. Results showthat at the concentration of 5 × 10−3 molL-1, chalcone derivatives show high corrosion inhibition activities. All compounds are found to act via adsorption at the metal/solution interface, and their adsorption follows Langmuir isotherm model.

Item Type: Article
Uncontrolled Keywords: Chalcone derivative Corrosion inhibition Mild steel Fukui function DFT Molecular dynamics
Subjects: Engineering > MIT Manipal > Chemistry
Depositing User: MIT Library
Date Deposited: 11 May 2020 09:23
Last Modified: 11 May 2020 09:23
URI: http://eprints.manipal.edu/id/eprint/155109

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