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

被引：4
作者：
Fahim, Ismail [1 ]
Tridane, Malika [1 ,2 ]
Belaaouad, Said [1 ]
机构：
[1] Univ Hassan II Casablanca, Lab Chim Phys Mat LCPM, Fac Sci Ben Msik, BP 7955, Casablanca, Morocco
[2] Ctr Reg Metiers Educ & Format Casablanca Anfa, Casablanca, Morocco
来源：
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 2021年 / 93卷 / 02期
关键词：
COLD-ROLLED STEEL; CYCLIC NITROGEN-COMPOUNDS; CORROSION INHIBITION; CARBON-STEEL; HYDROCHLORIC-ACID; SYNERGISTIC INHIBITION; SULFURIC-ACID; NONIONIC SURFACTANTS; ANTIBACTERIAL DRUGS; CHLORIDE-ION;
D O I：
10.1051/epjap/2021200229
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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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页数：12
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