Adil Mahraz Mohamed, Salim Rajae, Loukili El Hassania, Assouguem Amine, Kara Mohammed, Ullah Riaz, Bari Ahmed, Fidan Hafize, Laftouhi Abdelouahid, Mounadi Idrissi Amine, Hammouti Belkheir, Rais Zakia, Taleb Mustapha
Laboratory of Engineering, Electrochemistry, Modeling and Environment, Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez 30050, Morocco.
Euromed University of Fes, UEMF, Fez, Morocco.
Open Life Sci. 2024 Jul 11;19(1):20220879. doi: 10.1515/biol-2022-0879. eCollection 2024.
The corrosion of metals poses a threat to the economy, the environment, and human health due to undesirable reactions and contaminated products. Corrosion inhibitors, including natural products, can play a key role in protecting metallic materials, especially under challenging conditions. In this study, the roots of the plant were examined for their ability to act as corrosion inhibitors in a 1 M hydrochloric acid (HCl) solution. Different extracts of the plant were evaluated for their corrosion inhibition capacity in a 1 M HCl solution. The effectiveness of different plant extracts was assessed, including an aqueous extract, an ethanolic extract, and a combined water-ethanol extract. Compounds present in the roots of were identified using high-performance liquid chromatography. The electrochemical properties of the extracts were studied using various techniques such as open circuit potential, electrochemical impedance spectroscopy, and potentiodynamic polarization. Additionally, surface analysis after immersion was performed using scanning electron microscopy. Electrochemical data revealed that root (IVR) extracts acted as mixed-type corrosion inhibitors with pronounced cathodic characteristics. The inhibitory efficiency was closely related to the concentration of (), showing a significant increase with higher concentrations. This resulted in a decrease in corrosion current and an increase in polarization resistance. Notably, inhibitory efficiency reached high levels, up to 97.7% in mixed extract which represents a mixture between water and ethanol. In our study, it was observed that the mixed extract (water + ethanol) allowed for a greater corrosion inhibition compared to the other solvents studied, 97.7%. Surface analyses confirmed the formation of an organic film layer on the steel surface, attributed to the bonding of functional groups and heteroatoms in components. Therefore, this study paves the way for the potential integration of as a promising corrosion inhibition material, offering durable protection against steel corrosion and opening avenues for various related applications.
金属腐蚀由于不良反应和受污染的产物，对经济、环境和人类健康构成威胁。缓蚀剂，包括天然产物，在保护金属材料方面可以发挥关键作用，特别是在具有挑战性的条件下。在本研究中，考察了该植物的根在1M盐酸（HCl）溶液中作为缓蚀剂的能力。评估了该植物的不同提取物在1M HCl溶液中的缓蚀能力。评估了不同植物提取物的有效性，包括水提取物、乙醇提取物和水 - 乙醇混合提取物。使用高效液相色谱法鉴定了该植物根中存在的化合物。使用各种技术，如开路电位、电化学阻抗谱和动电位极化，研究了提取物的电化学性质。此外，使用扫描电子显微镜对浸泡后的表面进行了分析。电化学数据表明，该植物根（IVR）提取物作为具有明显阴极特性的混合型缓蚀剂起作用。缓蚀效率与该植物提取物的浓度密切相关，随着浓度的升高显著增加。这导致腐蚀电流降低和极化电阻增加。值得注意的是，缓蚀效率达到了很高的水平，在水和乙醇的混合提取物中高达97.7%。在我们的研究中，观察到与其他研究的溶剂相比，混合提取物（水 + 乙醇）具有更大的缓蚀效果，为97.7%。表面分析证实了在钢表面形成了有机膜层，这归因于该植物成分中官能团和杂原子的结合。因此，本研究为该植物作为一种有前景的缓蚀材料的潜在整合铺平了道路，为钢铁腐蚀提供持久保护，并为各种相关应用开辟了途径。
