Deyab M A, Mohsen Q, El-Shamy Omnia A A
Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, Egypt.
Department of Chemistry, College of Sciences, Taif University, Taif, Saudi Arabia.
Sci Rep. 2024 Oct 1;14(1):22770. doi: 10.1038/s41598-024-73603-5.
The increasing demand for corrosion prevention strategies that are both effective and sustainable is part of the research the background. Nonionic surfactants offer a potential replacement for traditional corrosion inhibitors. These surfactants are well-known for their low toxicity and biodegradability. The research involved conducting experimental tests (such as weight loss, polarization and impedance spectroscopy) and theoretical computations to investigate the role of nonionic surfactant (polyoxyethylene (7) tribenzyl phenyl ether) (PETPE) in controlling the corrosion of mild steel in hydrochloric acid (1.0 M HCl) environment. The results of the study demonstrated that PETPE exhibited significant corrosion inhibition properties for mild steel in HCl solution. The inhibition efficiency of PETPE was found to increase with increasing PETPE concentration. PETPE is an excellent corrosion inhibitor because it significantly reduces the rate of corrosion, as seen by the notable inhibition efficiency result (95.4%) at a relatively low dose of PETPE (100 ppm). Thermodynamic studies were used to discuss the fundamental mechanisms that control PETPE-acid interactions. The adsorption process followed Langmuir adsorption isotherm, indicating a monolayer adsorption of the PETPE on the mild surface. Theoretical computations confirm the strong inhibition behavior of PETPE. The innovative feature of this research is its comprehensive strategy, which integrates experimental studies and theoretical simulations to evaluate the impact of PETPE on the corrosion control of mild steel in hydrochloric acid. The combined effort has the ability to supply valuable knowledge into the mechanisms of corrosion that will lead to the establishment of powerful corrosion control strategies.
对既有效又可持续的腐蚀预防策略的需求不断增加是本研究背景的一部分。非离子表面活性剂为传统缓蚀剂提供了一种潜在的替代品。这些表面活性剂以其低毒性和生物降解性而闻名。该研究通过进行实验测试（如失重、极化和阻抗谱）以及理论计算，来研究非离子表面活性剂（聚氧乙烯（7）三苄基苯基醚）（PETPE）在控制盐酸（1.0 M HCl）环境中低碳钢腐蚀方面的作用。研究结果表明，PETPE在HCl溶液中对低碳钢表现出显著的缓蚀性能。发现PETPE的缓蚀效率随PETPE浓度的增加而提高。PETPE是一种优异的缓蚀剂，因为它能显著降低腐蚀速率，在相对较低剂量的PETPE（100 ppm）下，显著的缓蚀效率结果（95.4%）就体现了这一点。热力学研究用于讨论控制PETPE与酸相互作用的基本机制。吸附过程遵循朗缪尔吸附等温线，表明PETPE在低碳钢表面形成单层吸附。理论计算证实了PETPE的强缓蚀行为。本研究的创新之处在于其综合策略，该策略将实验研究和理论模拟相结合，以评估PETPE对盐酸中低碳钢腐蚀控制的影响。这种联合努力有能力为腐蚀机制提供有价值的知识，从而有助于建立强大的腐蚀控制策略。
