Eco-friendly gemini ionic liquid as a corrosion inhibitor for carbon steel in petroleum pipelines

IF 2.9 3区化学 Q3 CHEMISTRY, PHYSICAL

Physical Chemistry Chemical Physics Pub Date : 2025-06-19 DOI:10.1039/d5cp00349k

Ashraf M. Ashmawy, Yousef A. Selim, M. Abd-El-Raouf, Kh. Zakaria, Yasser M. Moustafa, Ahmed Z. Sayed, Odeh A. O. Alshammari, Reda Abdel-Hameed

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Abstract

We conducted an experiment to test the effectiveness of a new gemini ionic liquid, labeled as N₁,N₁,N₃,N₃-tetramethyl-N₁,N₃-bis(4-nitrobenzyl) propane 1,3-diaminium chloride, in prohibiting carbon steel corrosion in a 1 M hydrochloric acid solution. We successfully synthesized this compound and characterized it using various analytical techniques, comprising elemental examinations, mass spectroscopy, FT-IR spectroscopy and ¹H-NMR spectroscopy. To assess corrosion and corrosion inhibition efficiency, we utilized electrochemical techniques. The trials were performed at a temperature of 298 K, with adjustments made to the inhibitor concentrations. We maintained standardized conditions to maximize the inhibition efficiency. Additionally, AFM, SEM, and EDAX analyses were employed to identify the surface morphology. Our results showed that the inhibition efficiency increased with increasing inhibitor concentrations, reaching up to 90.6% at 200 ppm of the synthesized compound at 298 K. Notably, the formed gemini ionic liquid operated as a mixed inhibitor, adopted a physico-chemisorption mechanism, and fitted well with the Langmuir adsorption model.

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双子离子液体作为石油管道中碳钢的缓蚀剂

本文研究了新型gemini离子液体N1，N1,N3，N3-四甲基-N1，N3-双（4-硝基苄基）丙烷1,3-二氯胺在1 M盐酸溶液中防止碳钢腐蚀的效果。我们成功地合成了该化合物，并使用各种分析技术对其进行了表征，包括元素检测、质谱、FT-IR光谱和1H-NMR光谱。为了评估腐蚀和缓蚀效率，我们使用了电化学技术。实验在298 K的温度下进行，并对抑制剂的浓度进行了调整。为了最大限度地提高抑菌效果，我们保持了标准化的条件。此外，采用AFM， SEM和EDAX分析来识别表面形貌。结果表明，随着抑制剂浓度的增加，缓蚀效率也随之提高，在298 K下，当合成的化合物浓度为200 ppm时，缓蚀效率可达90.6%。值得注意的是，形成的gemini离子液体作为混合缓蚀剂，采用物理-化学吸附机理，符合Langmuir吸附模型。

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来源期刊

Physical Chemistry Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

5.50

自引率

9.10%

发文量

2675

审稿时长

2.0 months

期刊介绍： Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.