Empirical and Computational Investigation of Cationic Gemini Surfactants as Anti-Corrosive Inhibitors for Mild Steel in Acid Medium and its silver Nano Structure synthesis and Analysis.

Gab-Allah, Muhammad Gamal; Bedair, Mahmoud Abd elmounsef; Elged, Ahmed Hamed; Soliman, Samier Abd El salam; badr, Emad Abdel Atty; Bakr, Moustafa Farag

doi:10.21608/ejchem.2023.222841.8256

	Empirical and Computational Investigation of Cationic Gemini Surfactants as Anti-Corrosive Inhibitors for Mild Steel in Acid Medium and its silver Nano Structure synthesis and Analysis.
Egyptian Journal of Chemistry
Volume 66, Issue 13, December 2023, Page 2013-2031 PDF (2.09 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2023.222841.8256
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Authors
Muhammad Gamal Gab-Allah¹; Mahmoud Abd elmounsef Bedair²; Ahmed Hamed Elged ³; Samier Abd El salam Soliman⁴; Emad Abdel Atty badr⁵; Moustafa Farag Bakr⁴
¹Department of Chemistry, Faculty of Science (Men’s Campus), Al-Azhar University, Nasr City 11884, Cairo, Egypt. Suez Methanol Derivatives Company, Egyptian Ministry of Petroleum and Mineral Resources, Egypt.
²Department of Chemistry, Faculty of Science (Men’s Campus), Al-Azhar University, Nasr City 11884, Cairo, Egypt. College of Science and arts, University of Bisha, Al-Namas 61977, P.O. Box 101, Saudi Arabia.
³Egyptian Petroleum Research Institute (EPRI)
⁴Department of Chemistry, Faculty of Science (Men’s Campus), Al-Azhar University, Nasr City 11884, Cairo, Egypt.
⁵Surfactant Laboratory, Petrochemical Department; Egyptian Petroleum Research Institute (EPRI);
Abstract
Cationic geminies play an important role nowadays in many industrial applications concerned in protection of eco system (corrosion resistance). The three cationic Gemini surfactants based on amide of succinic acid (OGC, DGC, HGC) were evaluated as anti-corrosive materials for mild steel (MS) in 0.5 mol/L H2SO4 medium. The inhibition efficiencies were evaluated using gravimetric, electrochemical techniques, and computational approaches. The findings showed that HGC was the most effective inhibitor, with an efficacy of 95.25% at 1x10-3 M using EIS measurements. The inhibitors were found to form protective layers on the MS surface, as indicated by modifications in impedance parameters (Cdl, double layer capacitance, and Rct, charge transfer resistance). Thermodynamic and kinetic parameters of adsorption were estimated to elucidate the inhibitive mechanism. AFM images revealed a smoother surface of MS and less corroded area in the presence of the investigated inhibitors compared to their absence. Also this study describes the synthesis of silver Nano particles capped surfactant. Silver Nano structures were characterized using DLS and TEM images. Overall, the study highlights the potential of these Gemini surfactants as anti-corrosive materials for mild steel. And stabilizers for preparing silver Nano particles capped surfactants.
Keywords
cationic geminin surfactants; Atomic force microscope; Monte Carlo simulations; silver Nano particles


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