Date palm seed extract for mild steel corrosion prevention in HCL medium

Mohammed, Naba Jasim and Norinsan, Kamil Othman and Al Gburi, Ahmed Jamal Abdullah and M. Yusop, Rahimi (2023) Date palm seed extract for mild steel corrosion prevention in HCL medium. Separations, 10 (1). pp. 1-21. ISSN 2297-8739

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Abstract

The inhibition effects of the date palm seed extract corrosion of mild steel in 0.5 M HCl at different concentrations are investigated by potentiodynamic polarisation (PDP), electrochemical impedance spectroscopy (EIS) and weight loss tests. Additionally, this study provides a fundamental understanding of aromatic adsorption on iron (Fe) surfaces. Furthermore, the surface morphology and the extracts are performed using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The maximum inhibition efficiency of 95, 96, and 91% were realised at 1400 mg/L for PDP, EIS, and weight loss, respectively. The inhibitive action of the DPS extract against mild steel corrosion in an acid solution has been supported by SEM analysis. The FTIR showed that the extract contained hydroxyl (−OH) and methoxyl (−OCH3) functional groups. The DFT depicted the adsorption sites at the oxygen (O) and carbon (C) atoms as deduced from the Fukui functions, Mulliken atomic charge, and the highest occupied molecular orbital-lowest occupied molecular orbital (HOMO-LUMO) analysis. The DPS preferred to form chemical bonds by donating electrons to the Fe surface. The coordinate bonds between the O and C atoms and the metal surface resulted in a high inhibition efficiency value. In conclusion, date palm seed extract is an effective inhibitor to protect mild steel from corrosion in an acidic medium

Item Type:	Article
Uncontrolled Keywords:	Date palm seed, Corrosion prevention, Electrochemical studies, Mild steel, HCl
Divisions:	Faculty of Electronics and Computer Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	28 Jun 2024 15:53
Last Modified:	28 Jun 2024 15:53
URI:	http://eprints.utem.edu.my/id/eprint/27206
Statistic Details:	View Download Statistic

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