An investigation on the synthesis, characterization and anti-corrosion properties of choline based ionic liquids as novel and environmentally friendly inhibitors for mild steel corrosion in 5% HCl

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dc.contributor.authorMobin, Mohammad
dc.contributor.authorAslam, Ruby
dc.contributor.authorSalim, Rajae
dc.contributor.authorKaya, Savas
dc.date.accessioned2024-10-26T18:09:03Z
dc.date.available2024-10-26T18:09:03Z
dc.date.issued2022
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractThe development of green corrosion inhibitors is a challenging task as it has to comply with strict environmental regulations. Ionic liquids (ILs) have recently been proposed as promising corrosion inhibitors. The present paper reports on two ILs designed to act as green and efficient high-temperature corrosion inhibitors. The prepared ILs, namely, choline formate (ChF) and choline acetate (ChA), are composed of biologically active ions. To elucidate their structure and corrosion inhibition effect on mild steel in 5% HCl the ILs were subjected to characterization tests like proton nuclear magnetic resonance (H-1 NMR), carbon nuclear magnetic resonance (C-13 NMR) and Fourier Transform infra-red (FT-IR) spectroscopy and corrosion tests like weight loss measurements, potentiodynamic polarization measurements (PDP), and electrochemical impedance spectroscopy (EIS). The effectiveness of the inhibition (%IE) increased with increasing concentrations and temperature up to 50 degrees C. ChF and ChA exhibited the highest inhibition efficacies of 96.9% and 99.5%, respectively at a temperature of 50 degrees C and concentration of 2 x 10( 3) M. Above 50 degrees C their inhibition performance diminished, displaying an efficacy of 77.6% for ChF and 79.3% for ChA at 80 degrees C. The results of polarization measurements suggested mixed type behavior of inhibitors, and adsorption followed Langmuir adsorption isotherm. Furthermore, surface studies like scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) revealed protecting capability of the investigated inhibitors. FT-IR, and Raman spectroscopic studies revealed the adsorption of ILs on the Fe surface, and an ultra-violet visible (UV-vis.) spectroscopy study confirms the formation of Fe2+-ILs complex. X-ray Photoelectron Spectroscopy (XPS) was conducted to study the formation of corrosion products and protective film over the mild steel surface. Density functional theory (DFT) calculations and molecular dynamics (MD) simulations were also done to understand the inhibition mechanism of ILs. (C) 2022 Elsevier Inc. All rights reserved.
dc.description.sponsorshipCouncil of Scientific & Industrial Research (CSIR) , New Delhi, India [09/112 (0616) 2K19 EMR-I]
dc.description.sponsorshipRuby Aslam acknowledges the Council of Scientific & Industrial Research (CSIR) , New Delhi, India, for providing financial aid under the Research Associate fellowship (09/112 (0616) 2K19 EMR-I) . The authors would also like to thank University Sophisticated Instru-ment Facility (USIF) A.M.U., Aligarh India for NMR analysis, Raman and SEM-EDS analysis, and IIT-Roorkee, India for XPS analysis.
dc.identifier.doi10.1016/j.jcis.2022.04.036
dc.identifier.endpage312
dc.identifier.issn0021-9797
dc.identifier.issn1095-7103
dc.identifier.pmid35429708
dc.identifier.scopus2-s2.0-85129445025
dc.identifier.scopusqualityQ1
dc.identifier.startpage293
dc.identifier.urihttps://doi.org/10.1016/j.jcis.2022.04.036
dc.identifier.urihttps://hdl.handle.net/20.500.12418/29932
dc.identifier.volume620
dc.identifier.wosWOS:000793567700007
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherAcademic Press Inc Elsevier Science
dc.relation.ispartofJournal of Colloid and Interface Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectMild steel
dc.subjectAcid corrosion
dc.subjectEfficient corrosion inhibitors
dc.subjectIonic liquids
dc.subjectTheoretical studies
dc.titleAn investigation on the synthesis, characterization and anti-corrosion properties of choline based ionic liquids as novel and environmentally friendly inhibitors for mild steel corrosion in 5% HCl
dc.typeArticle

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