苯对咪唑啉衍生物缓蚀性能影响的系统分析：实验与理论研究

IF 3.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Langmuir Pub Date : 2024-12-11 DOI:10.1021/acs.langmuir.4c03256

Pengjie Wang, Yuhao Song, Zijie Tang, Zhonghui Li, Kashif Rahmani Ansari, Mohd Talha, Ambrish Singh, Yuanhua Lin

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引用次数: 0

摘要

咪唑啉衍生物由于其毒性和缓蚀性被广泛用于防腐蚀。以己酸咪唑（JSMZ）为原料合成了两种咪唑希夫衍生物JSMP和JSPP。研究了在1.0 mol L-1 HCl溶液中的缓蚀电位和机理，重点研究了增加苯基数量的影响。通过失重和电化学实验考察了其抑制性能。通过扫描电镜(SEM) +能量色散x射线能谱（EDS）和x射线光电子能谱（XPS）验证了防腐机理的准确性，并通过理论模拟（密度泛函理论和分子动力学）进一步验证了缓蚀机理。JSMP和JSPP在Q235表面形成了一个防御层。随着缓蚀剂浓度的增加和苯环数量的增加，其防腐能力也逐渐提高。在2.0 mmol L-1条件下，其防腐效果为94.95%。JSMP和JSPP属于混合型，以阴极抑制剂为主，在金属表面自发吸附，遵循Langmuir等温吸附。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Systematic Analysis of the Effect of Benzene on the Corrosion Inhibition Performance of Imidazoline Derivatives: Experimental and Theoretical Research

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Systematic Analysis of the Effect of Benzene on the Corrosion Inhibition Performance of Imidazoline Derivatives: Experimental and Theoretical Research

Imidazoline derivatives are widely used to prevent corrosion due to their toxicity and mitigation potential. The present study deals with the synthesis of two imidazole Schiff derivatives (JSMP and JSPP) based on imidazole hexanoate (JSMZ). The corrosion mitigation potential and mechanism in 1.0 mol L^–1 HCl solution were studied with a focus on the influence of increasing the number of phenyl groups. The inhibitive performance was investigated by weight loss and electrochemical experiments. The accuracy of the corrosion protection mechanism was verified through scanning electron microscopy (SEM) + energy dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS), and the corrosion inhibition mechanism was further verified through theoretical simulations (density functional theory and molecular dynamics). JSMP and JSPP formed a defensive layer over the surface of Q235. As the concentration of the corrosion inhibitor and the number of phenyl rings increased, the corrosion protection ability also increased gradually. The obtained corrosion protection effectiveness was 94.95% at 2.0 mmol L^–1. JSMP and JSPP belong to a mixed type and predominantly cathodic inhibitors, which spontaneously adsorb on metal surfaces and follow Langmuir isotherm adsorption.

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来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).