Experimental and theoretical studies on some selected ionic liquids with different cations/anions as corrosion inhibitors for mild steel in acidic medium

Journal of the Taiwan Institute of Chemical Engineers, 64: 252–268

সংরক্ষণ করুন:
গ্রন্থ-পঞ্জীর বিবরন
প্রধান লেখক: Sasikumar, Y., Olasunkanmi, Lukman O., Bahadur, Indra, Kabanda, Mwadham M
বিন্যাস: পত্রিকা
ভাষা:ইংরেজি
প্রকাশিত: Elsevier 2020
বিষয়গুলি:
অনলাইন ব্যবহার করুন:https://ir.oauife.edu.ng/handle/123456789/5040
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author Sasikumar, Y.
Olasunkanmi, Lukman O.
Bahadur, Indra
Kabanda, Mwadham M
author_facet Sasikumar, Y.
Olasunkanmi, Lukman O.
Bahadur, Indra
Kabanda, Mwadham M
author_sort Sasikumar, Y.
collection DSpace
description Journal of the Taiwan Institute of Chemical Engineers, 64: 252–268
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spelling oai:ir.oauife.edu.ng:123456789-50402023-05-13T11:10:25Z Experimental and theoretical studies on some selected ionic liquids with different cations/anions as corrosion inhibitors for mild steel in acidic medium Sasikumar, Y. Olasunkanmi, Lukman O. Bahadur, Indra Kabanda, Mwadham M ionic liquids mild steel Corrosion inhibition QSAR Monte Carlo simulations Journal of the Taiwan Institute of Chemical Engineers, 64: 252–268 Inhibition of mild steel corrosion in 1 M HCl solution by some alkylimidazolium-based ionic liquids (ILs) namely 1-ethyl-3-methylimidazolium ethylsulfate [EMIM]+[EtSO4]−, 1-ethyl-3-methylimidazolium acetate [EMIM]+[Ac]−, 1-butyl-3-methylimidazolium thiocyanate [BMIM]+[SCN]−, 1-butyl-3-methylimidazolium acetate [BMIM]+[Ac]− and 1-butyl-3-methylimidazolium dicyanamide [BMIM]+[DCA]− was investigated using electrochemical, spectroscopic, surface morphology, quantum chemical calculations, quantitative structure activity relationship (QSAR) and Monte Carlo simulation methods. The studied ILs showed appreciable inhibition efficiencies within the range of concentrations considered. Polarization measurements showed that the studied ILs are mixed-type inhibitors, that is, they inhibit both the anodic mild steel dissolution and cathodic hydrogen evolution reactions. The adsorption of the ILs on mild steel affords competitive physisorption and chemisorption processes and obeyed the Langmuir adsorption isotherm. Spectroscopic studies confirmed chemical interactions between the ILs and mild steel, while the scanning electron microscopy (SEM) images revealed the formation of protective film of the inhibitors on mild steel surface. Theoretical quantum chemical calculations, QSAR analyses and Monte Carlo simulations studies were used to correlate experimental results. The best fit QSAR equations are functions of molecular weight, fraction of electrons transferred from the inhibitor to the metal and dipole moment of the ILs. 2020-01-15T10:33:41Z 2020-01-15T10:33:41Z 2016-05 Journal Sasikumar, Y., Olasunkanmi, Lukman, Bahadur, Indra, Kabanda, Mwadham, Obot, Ime & Ebenso, Eno. (2016). Experimental and theoretical studies on some selected ionic liquids with different cations/anions as corrosion inhibitors for mild steel in acidic medium. Journal of the Taiwan Institute of Chemical Engineers. 64. 10.1016/j.jtice.2016.04 https://ir.oauife.edu.ng/handle/123456789/5040 en application/pdf Elsevier
spellingShingle ionic liquids
mild steel
Corrosion inhibition
QSAR
Monte Carlo simulations
Sasikumar, Y.
Olasunkanmi, Lukman O.
Bahadur, Indra
Kabanda, Mwadham M
Experimental and theoretical studies on some selected ionic liquids with different cations/anions as corrosion inhibitors for mild steel in acidic medium
title Experimental and theoretical studies on some selected ionic liquids with different cations/anions as corrosion inhibitors for mild steel in acidic medium
title_full Experimental and theoretical studies on some selected ionic liquids with different cations/anions as corrosion inhibitors for mild steel in acidic medium
title_fullStr Experimental and theoretical studies on some selected ionic liquids with different cations/anions as corrosion inhibitors for mild steel in acidic medium
title_full_unstemmed Experimental and theoretical studies on some selected ionic liquids with different cations/anions as corrosion inhibitors for mild steel in acidic medium
title_short Experimental and theoretical studies on some selected ionic liquids with different cations/anions as corrosion inhibitors for mild steel in acidic medium
title_sort experimental and theoretical studies on some selected ionic liquids with different cations anions as corrosion inhibitors for mild steel in acidic medium
topic ionic liquids
mild steel
Corrosion inhibition
QSAR
Monte Carlo simulations
url https://ir.oauife.edu.ng/handle/123456789/5040
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