Corrosion prevention of mild steel in acidic medium by 2-Pyrrolidi-n-1-yl-1,3-thiazole-5-carboxylic acid: Theoretical and experimental approach

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dc.authoridDogru Mert, Basak/0000-0002-2270-9032
dc.authoridMERT, MEHMET ERMAN/0000-0002-0114-8707
dc.contributor.authorKarazehir, Tolga
dc.contributor.authorMert, Mehmet Erman
dc.contributor.authorMert, Basak Dogru
dc.date.accessioned2025-01-06T17:36:04Z
dc.date.available2025-01-06T17:36:04Z
dc.date.issued2022
dc.description.abstractThe inhibition efficiency of 2-Pyrrolidin-1-yl-1,3-thiazole-5-carboxylic acid (PTCA) against mild steel (MS) corrosion was investigated in acidic solution by using quantum chemical calculations based on Density Functional Theory (DFT) method and electrochemical measurements. The electrochemical impedance spectroscopy (EIS), potentiodynamic, potential zero charge (pzc) analysis and electrochemical noise (EN) measurements at various concentrations (from 0.1 to 10 mM) and immersion times were utilized in experimental part. The surface analysis was achieved scanning electron microscope (SEM) and contact angle measurements in the absence and presence of 10 mM PTCA. According to DFT results, PTCA exhibited 3.737 eV band gap and 8.130 Debye dipole moment which were a signal of potentially convenient corrosion inhibitor properties. PTCA has a remarkable corrosion inhibition capability to mild steel, which inhibited both anodic and cathodic corrosion rates, relying on it's physically adsorption on the metal solution interface and protection ability was increased with increasing PTCA concentration. The obtained adsorption equilibrium constant was 11.11 x 103 M-1 and calculated standard free energy of adsorption was -33.03 kJ mol-1. The determined activation energy values were 55.58 kJ mol-1 and 96.86 kJ mol-1 in 0.5 M HCl in the absence and presence of 10 mM PTCA, respectively. PTCA demonstrated a strong inhibition efficiency of 98.3%, after 168 h immersion, according to the EIS results. As a consequently, we recommend that PTCA is a convenient inhibitor in 0.1 M HCl for mild steel protection against corrosion.
dc.description.sponsorshipAdana Science and Technology University Research fund [19103003]
dc.description.sponsorshipThe authors are thankful to Adana Alparslan Turkes University Research Lab and also Adana Science and Technology University Research fund for financial support (Project Number: 19103003).
dc.identifier.doi10.1016/j.jics.2022.100642
dc.identifier.issn0019-4522
dc.identifier.issue9
dc.identifier.scopus2-s2.0-85134839553
dc.identifier.scopusqualityQ3
dc.identifier.urihttps://doi.org/10.1016/j.jics.2022.100642
dc.identifier.urihttps://hdl.handle.net/20.500.14669/1737
dc.identifier.volume99
dc.identifier.wosWOS:000832075400003
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of The Indian Chemical Society
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectAcid corrosion
dc.subjectMild steel
dc.subjectElectrochemical noise measurement
dc.subjectDFT
dc.titleCorrosion prevention of mild steel in acidic medium by 2-Pyrrolidi-n-1-yl-1,3-thiazole-5-carboxylic acid: Theoretical and experimental approach
dc.typeArticle

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