Evaluation of Gloriosa superba seeds extract as corrosion inhibition for low carbon steel in sulfuric acidic medium: A combined experimental and computational studies

被引：99

作者：

Haldhar, Rajesh ^{[1
]}

Prasad, Dwarika ^{[2
]}

Bahadur, Indra ^{[3
]}

Dagdag, Omar ^{[4
]}

Berisha, Avni ^{[5
,6
]}

机构：

[1] Lovely Profess Univ, Dept Chem, Phagwara 144411, India

[2] Shri Guru Ram Rai Univ, Dept Chem, Dehra Dun 248001, Uttarakhand, India

[3] North West Univ, Fac Nat & Agr Sci, ZA-2520 Potchefstroom, South Africa

[4] Sidi Mohammed Ben Abdallah Univ, Dept Proc Engn, Lab Ind Technol & Serv LITS, Height Sch Technol, POB 2427, Fes 30000, Morocco

[5] Univ Prishtina, Dept Chem, Prishtina 10000, Kosovo

[6] NanoAlb Unit Albanian Nanosci & Nanotechnol, Mat Sci Nanochem Res Grp, Tirana 1020, Albania

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2021年 / 323卷

关键词：

Gloriosa superba; Low carbon steel; EIS; Theoretical studies; Polarization; AFM; SEM; MILD-STEEL; MOLECULAR-DYNAMICS; LEAVES EXTRACT; DENSITY FUNCTIONALS; GREEN; HCL; EXPLORATION; PERFORMANCE; COMPONENTS; ALUMINUM;

D O I：

10.1016/j.molliq.2020.114958

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：

Various concentrations of Gloriosa superba seeds extract were utilized for low carbon steel (LCS) within the sight of a destructive solution (0.5 M sulfuric corrosive) utilizing electrochemical techniques (Tafel and EIS) followed by weight loss method. The condition of mixed adsorption to LCS is confirmed by potentiodynamic polarization. G. superba demonstrated a corrosion restraint effectiveness of 93.84% at 700 mg/L. SEM and AFM were utilized to recognize the formation of a surrounding protective layer on LCS to shield it from corrosive media. The inhibitor adsorption was shown by noticeable spectroscopic strategies. The FT-IR system affirmed the presence of various utilitarian gatherings and heteroatoms in the inhibitor. Adsorption of inhibitory atoms on the LCS followed the Langmuir adsorption isotherm. Hypothetical exploration has demonstrated a significant relationship. All the outcomes ensure that G. superba makes a defensive layer to reduce the corrosion process. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：11

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