Experimental, theoretical, and surface study for corrosion inhibition of mild steel in 1 M HCl by using synthetic anti-biotic derivatives

被引：27

作者：

Arshad, Nasima ^{[1
]}

Singh, Ashish Kumar ^{[2
]}

Chugh, Bhawna ^{[3
]}

Akram, Muhammad ^{[1
]}

Perveen, Fouzia ^{[4
]}

Rasheed, Imran ^{[1
]}

Altaf, Fouzia ^{[5
]}

Channar, Pervaiz Ali ^{[5
]}

Saeed, Aamer ^{[5
]}

机构：

[1] Allama Iqbal Open Univ, Dept Chem, Islamabad, Pakistan

[2] Bharati Vidyapeeths Coll Engn, Dept Appl Sci, New Delhi, India

[3] Netaji Subhas Univ Technol, Dept Chem, New Delhi, India

[4] NUST, Res Ctr Modelling & Simulat, Islamabad, Pakistan

[5] Quaid I Azam Univ, Dept Chem, Islamabad, Pakistan

来源：

IONICS | 2019年 / 25卷 / 10期

关键词：

XPS; Surfaces and interfaces; Thin films; Corrosion; Electrochemical impedance spectroscopy; ADSORPTION BEHAVIOR; ASSISTED SYNTHESIS; ACIDIC MEDIA; COPPER; ALUMINUM; ENERGY; APPROXIMATION; PROTECTION; WATER; IRON;

D O I：

10.1007/s11581-019-03028-y

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：

Isoniazid (anti-biotic) derivatives-PA1 {(E)-N '-(4 '-Hydroxy-3-methoxybenzylidene) isonicotino hydrazide}, PA2 {(E)-N '-(Pyridin-4 '-ylmethylene) isonicotino hydrazide}, and PA3 {(E)-N '-(Pyridin-3 '-ylmethylene) isonicotino hydrazide} were synthesized, characterized, and further examined for corrosion protection activities on mild steel (MS) in 1 M HCl via experimental, theoretical, and surface analysis. Electrochemical processes in the presence of different concentration of tested compounds were characterized as charge transfer controlled and revealed stable, spontaneous corrosion inhibition by inhibitors on mild steel in acidic media. The values evaluated for free energy change (Delta Gads0) assured the involvement of chemisorption process. Adsorption data was found well fitted in Langmuir isotherm. Enthalpy and entropy parameters obtained by computational analysis using ADF-band revealed parallel alignment of PA1 on the surface of mild steel as best alignment for optimal adsorption. Theoretically, computed adsorption-free energy (Delta Gads0) and adsorption constant (K-ads) values for parallel alignment complemented the experimentally determined values.

引用

页码：5057 / 5075

页数：19

共 62 条

[1] Experimental and computational investigation on the corrosion inhibition characteristics of mild steel by some novel synthesized imines in hydrochloric acid solutions [J].