Computational and experimental studies on Phenylephrine as anti-corrosion substance of mild steel in acidic medium

被引：57

作者：

Bashir, Sumayah ^{[1
]}

Thakur, Abhinay ^{[1
]}

Lgaz, Hassane ^{[2
]}

Chung, Ill-Min ^{[2
]}

Kumar, Ashish ^{[1
]}

机构：

[1] Lovely Profess Univ, Fac Technol & Sci, Dept Chem, Phagwara, Punjab, India

[2] Konkuk Univ, Coll Sanghur Life Sci, Dept Crop Sci, Seoul 05029, South Korea

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2019年 / 293卷

关键词：

Corrosion inhibition; Impedance; Mild steel; Monte Carlo simulation; Polarization; GREEN CORROSION-INHIBITOR; SCHIFF-BASE COMPOUNDS; HYDROCHLORIC-ACID; CARBON-STEEL; MOLECULAR-STRUCTURE; IONIC LIQUID; HCL SOLUTION; HALIDE-IONS; DERIVATIVES; ADSORPTION;

D O I：

10.1016/j.molliq.2019.111539

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Computational and experimental studies on Phenylephrine as a corrosion inhibitor of mild steel in the acidic medium were performed using 1 M HCl. The highest efficiency of 88% was obtained at a 4000 ppm concentration of Phenylephrine at 298 K. Galvanostatic polarization studies revealed that Phenylephrine acted as a mixed type inhibitor. Thermodynamic and kinetic parameters and their effect on inhibition efficiency have also been studied. Adsorption studies revealed that the inhibition process followed Langmuir adsorption isotherm. Monte Carlo simulation approach has been utilized for a thorough theoretical study and data was gathered from quantum chemical studies and Monte Carlo simulation studies. The topographical study was performed by AFM to understand the behavior of inhibitor on the surface of mild steel. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：7

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