Insight into corrosion inhibition mechanism of carbon steel in 2 M HCl electrolyte by eco-friendly based pharmaceutical drugs

Abeng, F. E.; Ikpi, M. E.; Ushie, O. A.; Anadebe, Valentine Chikaodili; Nyong, Bassey E.; Obeten, M.E.; Okafor, Nduka; Chukwuike, V.I.; Nkom, P.Y.

doi:10.1016/j.cdc.2021.100722

Cited by 16 publications

(8 citation statements)

References 49 publications

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“…The X70 steel sample in Fig. 9b is highly corroded with obvious rough surface with pitting holes due to aggressive HCl attack [52]. In the presence of HBPA and B-HBPA in the 2 M HCl, the steel surfaces appear smoother and less corroded indicating adequate protection from corrosion due to the inhibitors adsorption on the steel surfaces [53].…”

Section: Surface Morphologymentioning

confidence: 99%

Anticorrosion activity of two new pyridine derivatives in protecting X70 pipeline steel in oil well acidizing fluid: experimental and quantum chemical studies

et al. 2021

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The effectiveness of two new pyridine derivatives, namely N-(2-hydroxybenzylidene) pyridine-4-amine (HBPA) and N-(5-bromo-2-hydroxybenzylidene) pyridine-4-amine (B-HBPA) as corrosion inhibitors for X70 steel in 2 M HCl solution was examined using weight loss, electrochemical and quantum chemical calculations. The results from the experimental studies indicate that the two pyridine derivatives inhibited X70 steel corrosion in the acid environment with HBPA displaying superiority in the inhibition performance. The inhibition efficiency from the polarization studies gave 96 and 92% for HBPA and B-HBPA, respectively; it also indicated that HBPA and B-HBPA behaved as a mixed-type inhibitor with predominant cathodic effect with HBPA inhibitor. Data from electrochemical impedance gave efficiency of 95 and 94% for HBPA and B-HBPA, respectively, at maximum inhibitor concentrations. The inhibitors adsorption on X70 steel surface obeyed Langmuir adsorption isotherm. The inhibitive effect of the studied inhibitors was confirmed by scanning electron microscopy (SEM) analysis. Quantum chemical calculations studied via density functional theory (DFT) provided additional support for better understanding of the mechanism of corrosion inhibition displayed by the studied pyridine derivatives.

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Section: Surface Morphologymentioning

confidence: 99%

Anticorrosion activity of two new pyridine derivatives in protecting X70 pipeline steel in oil well acidizing fluid: experimental and quantum chemical studies

et al. 2021

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“…This characteristic feature of the Schiff base enables it to act as chelating agents, corrosion inhibitors, and even antimicrobial agents. In this research work, a compound 14 was synthesized which is relatively inexpensive, ecofriendly 15,16 and yet has a special characteristic feature required for an active Schiff base. The present study aims at synthesizing a novel Schiff base molecule, characterizing and examining the applicability of this molecule concerning two factors.…”

Section: Introductionmentioning

confidence: 99%

Anti-metal Deteriorating and Antiviral Potency of a Novel Polynuclear Schiff base Derived from Anthrone

et al. 2022

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The versatile behavior of many Schiff bases is due to the presence of the azomethine group. In this work, we synthesized a novel polynuclear Schiff base [ANHIS] derived from anthrone and histidine, characterized using spectroscopic tools, and evaluated its anti-corrosion and anti-viral potencies. Conventional weight-loss method, electrochemical impedance spectroscopic investigation (EIS), potentiodynamic polarization studies (Tafel), adsorption studies, and quantum chemical calculations were used to investigate the anticorrosion behavior. The result showed that the Schiff base interacted with the surface metal atoms and provides good protection to the carbon steel surface against corrosion in an acid medium. A mixed-type inhibitor action of ANHIS was discovered by Tafel plot analysis. A plausible mechanism of inhibition action is also anticipated. SEM analyses were carried out to explore the surface characteristics of the metal in the absence and presence of ANHIS. Drug likeness and ADMET properties of ANHIS were screened using online web servers. The preliminary IN SILICO pharmacokinetics and medicinal chemistry studies revealed that the molecule shows a very good drug-like property. The toxicity studies predict that it has less or no toxic behavior (carcinogenic in mice and non-carcinogenic in rats). The antiviral activity of the molecule was investigated on SARS-CoV-2(COVID-19 virus) using Autodock software. Docking studies showed that the polynuclear molecule ANHIS possessed hydrogen bonding, aromatic and hydrophobic interactions with the binding site of the main receptor of the COVID-19 virus. The docking score is comparable with the score value of anti- HIV drugs such as lopinavir and indinavir.

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“…Many alternative basis sets are employed with the "density functional theory (DFT)," which is widely acknowledged among these approaches, provides quick findings, and is compatible with experimental experiments. The interactions between metal and inhibitor can be better understood with the use of theoretically derived parameters (dipole moment, EHOMO, ELUMO, and etc) [16][17][18]. The charge distributions of the molecule, the probability of chemical interactions, positively charged (electron rich) areas, and vice versa may all be identified using this approach, which is commonly used to identify the physicochemical features of inhibitor compounds.…”

Section: Introductionmentioning

confidence: 99%

“…All of these occurrences are related to the inhibitory molecules' adsorption properties on the metal surface. When the experimental drawing of the adsorption isotherms and the calculated Gibbs free energy (DG°ads) values are connected with the quantum parameters, the adsorption mechanism may be clarified [17,21]. In the literature, using mass loss, electrochemical impedance spectroscopy, potentiodynamic polarization, and computational research, levofloxacin, moxifloxacin, metolazone, and nifedipine were explored as corrosion inhibitors for improving carbon steel resistance in 2 M HCl solution [17].…”

Section: Introductionmentioning

confidence: 99%

Elektrokimyasal İnceleme ve DFT Yaklaşımı: 2-izopropil-4-metil-1,3-tiyazol-5-karboksilik asidin Yumuşak Çeliğin Korozyonuna Karşı İnhibisyon Etkisi

Mert

Karazehir

2022

Artıbilim: Adana Alparslan Türkeş Bilim Ve Teknoloji Üniversitesi Fen Bilimleri Dergisi

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The demand of metals and alloys is increasing in parallel with the world population and industrialization. In order to meet need, difficulties such as limited resources and environmental concerns during metallurgical processes come to the fore. In order to contribute to the elimination of these problems, it is an important research topic to protect the material from negative effects such as corrosion by increasing its strength. Organic inhibitors applied in low concentrations to corrosive aqueous media are the most common methods used for this purpose. In this study, the inhibitory properties of 2-isopropyl-4-methyl-1,3-thiazole-5-carboxylic acid (2I4MTA5C) against mild steel corrosion in acidic medium were investigated by electrochemical and quantum theoretical methods. Electrochemical impedance spectroscopy measurements and polarization curves were obtained in the presence and absence of 5 mM 2I4MTA5C in 0.5 M HCl during 168 hours of immersion, and the adsorption isotherm is presented. Experimental results were compared with quantum theoretical parameters in order to establish a relationship between molecular structure and electrochemical behavior and to investigate it in depth. According to the results obtained for the 168 hour immersion time, the resistance values for MS were 9.8 in the absence of 5 mM 2I4MTA5C and 200 ohm.cm-2 in the presence. The calculated corrosion current density values were 2.65 and 0.13 mA.cm-2 for MS in HCl and 5 mM 2I4MTA5C + HCl solution, respectively. The theoretically calculated HOMO and LUMO values were -6.88 eV and -1.80 eV. According to the results obtained, we can say that 2I4MTA5C is a suitable inhibitor candidate with 95.1% protection against mild steel corrosion.

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Insight into corrosion inhibition mechanism of carbon steel in 2 M HCl electrolyte by eco-friendly based pharmaceutical drugs

Cited by 16 publications

References 49 publications

Anticorrosion activity of two new pyridine derivatives in protecting X70 pipeline steel in oil well acidizing fluid: experimental and quantum chemical studies

Anticorrosion activity of two new pyridine derivatives in protecting X70 pipeline steel in oil well acidizing fluid: experimental and quantum chemical studies

Anti-metal Deteriorating and Antiviral Potency of a Novel Polynuclear Schiff base Derived from Anthrone

Elektrokimyasal İnceleme ve DFT Yaklaşımı: 2-izopropil-4-metil-1,3-tiyazol-5-karboksilik asidin Yumuşak Çeliğin Korozyonuna Karşı İnhibisyon Etkisi

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