Статья

L-Arginine Grafted Chitosan as Corrosion Inhibitor for Mild Steel Protection

Sani Nazifi DalhatuDepartment of Chemistry, Faculty of Science, Abubakar Tafawa Balewa University, Bauchi 740101, NigeriaKolo Alhaji ModuDepartment of Chemistry, Faculty of Science, Abubakar Tafawa Balewa University, Bauchi 740101, NigeriaAuwal Adamu MahmoudDepartment of Chemistry, Faculty of Science, Abubakar Tafawa Balewa University, Bauchi 740101, NigeriaZakariyya Uba ZangoDepartment of Chemistry, Faculty of Science, Al-Qalam University Katsina, Katsina 820101, NigeriaAbdullahi Bello UmarDepartment of Chemistry, Ahmadu Bello University, Zaria 810107, NigeriaFahad UsmanDepartment of Physics, Al-Qalam University Katsina, Katsina 820101, NigeriaJohn Ojur DennisDepartment of Fundamental and Applied Science, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, MalaysiaAhmed AlsadigCNR Nanotec, University Campus Ecotekne, 73100 Lecce, LE, ItalyKhalid Hassan IbnaoufDepartment of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13318, Saudi ArabiaOsamah AldaghriDepartment of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13318, Saudi Arabia

2023en

ABI

Аннотация

Corrosion prevention has been a global phenomenon, particularly in metallic and construction engineering. Most inhibitors are expensive and toxic. Therefore, developing nontoxic and cheap corrosion inhibitors has been a way forward. In this work, L-arginine was successfully grafted on chitosan by the thermal technique using a reflux condenser. This copolymer was characterized by Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and X-ray diffraction (XRD). The corrosion inhibition performance of the composite polymer was tested on mild steel in 0.5M HCl by electrochemical methods. The potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) results were consistent. The inhibition efficiency at optimum concentration rose to 91.4%. The quantum chemical calculation parameters show good properties of the material as a corrosion inhibitor. The molecular structure of the inhibitor was subjected to density functional theory (DFT) to understand its theoretical properties, and the results confirmed the inhibition efficiency of the grafted polymer for corrosion prevention.

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Идентификаторы

DOI: 10.3390/polym15020398

Цитирования и источники

Цитирований: 2Использованных источников: 0

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