某些二氢吡啶在1 M盐酸中对低碳钢缓蚀作用的实验与理论关联

IF 0.9 4区物理与天体物理 Q4 PHYSICS, APPLIED

European Physical Journal-applied Physics Pub Date : 2021-02-01 DOI:10.1051/epjap/2021200229

I. Fahim, M. Tridane, S. Belaaouad

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引用次数: 5

摘要

采用重量法、电化学阻抗谱法、动电位极化法和量子化学方法研究了二氢吡啶对低碳钢在1 M盐酸溶液中的缓蚀作用。失重和Tafel极化测量结果表明，在所研究的化合物中，Isradipine在酸性浴中具有良好的缓蚀性能，在400ppm时缓蚀率达到98%。抑制是一种混合的阳极-阴极性质。所研究化合物的吸附行为服从Langmuir吸附等温线。量子化学参数与实验结果相关。

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An experimental and theoretical correlation of inhibition effect of some dihydropyridine on mild steel in 1 M HCL

The corrosion inhibition of mild steel in 1 M HCl solution by some dihydropyridine has been studied using gravimetric, electrochemical impedance spectroscopy, potentiodynamic polarization techniques and quantum chemical study. The results of weight loss and Tafel polarization measurements showed that among the studied compounds, Isradipine has good inhibiting properties for steel corrosion in acidic bath, with 98% inhibition efficiency at optimum concentration 400 ppm. The inhibition is of a mixed anodic–cathodic nature. The adsorption behaviour of the investigated compounds is found to obey Langmuir adsorption isotherm. Quantum chemical parameters were correlated with the experimental results.

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来源期刊

European Physical Journal-applied Physics 物理-物理：应用

CiteScore

1.90

自引率

10.00%

发文量

审稿时长

1.9 months

期刊介绍： EPJ AP an international journal devoted to the promotion of the recent progresses in all fields of applied physics. The articles published in EPJ AP span the whole spectrum of applied physics research.