Synthesis and anticorrosive properties of epoxy polymer for CS in [1 M] HCl solution: Electrochemical, AFM, DFT and MD simulations

Hsissou, Rachid; Abbout, Said; Safi, Zaki; Benhiba, F.; Wazzan, Nuha; Guo, Lei; Nouneh, Khalid; Briche, Samir; Erramli, Hamid; Touhami, M. Ebn; Assouag, M.

doi:10.1016/j.conbuildmat.2020.121454

Cited by 98 publications

(27 citation statements)

References 61 publications

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“…5 , 6 Organic inhibitors have been developed and consumed steadily since they are one of the most inexpensive and realistic forms of protecting metals against acid corrosion. 7 , 8 Strong adsorption of inhibitors to the metal surface through functional groups such as nitrogen, sulfur, phosphorus, oxygen, phenyl ring, or double bond is needed for metal corrosion inhibition. 9 , 10 The inhibition of corrosion of a metal occurs through physisorption or chemisorption on the metal surfacing of the inhibitor.…”

Section: Introductionmentioning

confidence: 99%

Anticorrosion Effect of Ethoxylate Sulfanilamide Compounds on Carbon Steel in 1 M Hydrochloric Acid: Electrochemical and Theoretical Studies

et al. 2021

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Metal corrosion is an important economic problem globally. One of the best ways to protect metal surfaces from corrosion is by the use of corrosion inhibitors, especially surfactants. This study assesses anticorrosion properties of three inhibitor compounds (S1, S2, and S3) of ethoxylate sulfanilamide containing 2, 10, and 20 units of ethylene oxide on carbon steel in 1 M HCl solution. The anticorrosive performance of S1, S2, and S3 was studied using potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), adsorption isotherm, surface tests (scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, and X-ray diffraction (XRD) analysis), and computational studies (density functional theory (DFT) and molecular dynamics (MD) simulations) within the concentration range of 10 –6 to 10 –2 M at 30 ± 2 °C. The results of the methods used indicate that increasing the concentration of the inhibitor compounds improves the effectiveness of inhibition (from 50.9 to 98%), whereas the inhibition efficiency order for ethoxylated sulfanilamide compounds is S2 > S3 > S1 with the highest inhibiting efficiency, respectively, of 98.0, 95.0, and 90.0% for 10 –2 M. Also, PDP indicated that S1, S2, and S3 inhibitors act as mixed-type inhibitors and their adsorption obeys the Langmuir adsorption isotherm model. Surface tests show that the studied compounds can significantly inhibit acid attack via chemical adsorption on the metal. Furthermore, all of the chemical descriptors derived from DFT indicate that the three inhibitors are quite well adsorbed by the adhesion centers on the CS surface. The three compounds’ molecular geometries and electronic structures were calculated using quantum chemical calculations. Using theoretical computations, the energy difference between the highest occupied molecular orbital and the lowest occupied molecular orbital has been determined to represent chemical reactivity and kinetic stability of a composition.

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Section: Introductionmentioning

confidence: 99%

Anticorrosion Effect of Ethoxylate Sulfanilamide Compounds on Carbon Steel in 1 M Hydrochloric Acid: Electrochemical and Theoretical Studies

et al. 2021

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“…3. Some models of adsorption isotherms could be utilized to measure the adsorption mode of the prepared surfactants on the steel interface (Hsissou et al, 2020d;Hsissou et al, 2021b):…”

Section: Adsorption Isotherm and Corrosion Mitigation Mechanismmentioning

confidence: 99%

“…Supplementary Table S2 (Supporting data) shows the comparison of the inhibition activity of the synthesized natural surfactants based on soybean oil (CSM and CSD) for the corrosion of C-steel alloy under the sweet condition (CO 2 -saturated 3.5% NaCl) with some previously designated surfactant additives (Farelas and Ramirez, 2010;Singh et al, 2017;Singh et al, 2019;Shahzad et al, 2020;Hsissou et al, 2021b). The inhibition capacity values, recorded in Supplementary Table S2, were acquired utilizing EIS, LPR corrosion rate, and PDP experiments.…”

Section: Comparative Study Of Some Designated Corrosion Additives For...mentioning

confidence: 99%

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Novel Natural Surfactant-Based Fatty Acids and Their Corrosion-Inhibitive Characteristics for Carbon Steel-Induced Sweet Corrosion: Detailed Practical and Computational Explorations

et al. 2022

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Steel alloys are significant industrial substances, but they generally suffer severe corrosion under harsh conditions. Using inhibitors is an efficacious method to impede corrosion. So, in this study, two novel natural surfactants based on soybean oil have been synthesized by a facile route, namely, 1-(bis(2-hydroxyethyl)amino)-1-oxooctadecan-9-yl sulfate 2-hydroxyethan-1-aminium (CSM) and–N-(C2H4-OH)2; 1-(bis(2-hydroxyethyl)amino)-1-oxooctadecan-9-yl sulfate bis(2-hydroxyethyl)aminium (CSD), and their chemical structures were elucidated by physical–chemical approaches, Fourier transform infrared (FT-IR) spectroscopy, and surface activity measurements. The inhibitive effect of natural surfactants (CSM and CSD) on the C-steel corrosion in CO2-saturated 3.5% NaCl has been estimated in this investigation by electrochemical and surface analyses including electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), linear polarization resistance (LPR) corrosion rate, X-ray photoelectron spectroscopy (XPS), and field-emission scanning electron microscope/energy-dispersive X-ray spectroscopy (FESEM/EDX) approaches. The EIS study reveals the value of Rp augmented to an increase of 913.5 Ω cm2 with a protection capacity of 96.1% at 150 ppm (CSD). The outcomes of PDP suggested that CSM and CSD are mixed-type inhibitors. XPS and FESEM/EDX analyses determined the protective film formation on a metal interface having undamaged surface morphology and more homogeneities in the occurrence of the surfactant. Moreover, the adsorption of natural surfactants on the metal substrate takes place based on the model of Langmuir isotherm. Density functional theory (DFT) calculations and Monte Carlo (MC) simulations were selected for attaining basic atomic/electronic-scale details about the prepared surfactants, which support the practical findings. This study is intended to investigate the protection of C-steel using sweet service conditions with green extract surfactants.

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“…The polarization curves were swept at a rate of 1 mV s −1 from a starting potential of −500 mV to a final potential of +500 mV vs. SCE [34]. EIS tests were established in a wide scope of frequency 100 kHz -10 MHz using a sine wave with a magnitude of 10 mV [35][36][37][38][39][40]. Frequency modulation (EFM) is a promising technique with high sensitivity and accuracy due to the measurement of corrosion parameters at harmonics and intermodulation of input frequencies.…”

Section: Electrochemistry Studiesmentioning

confidence: 99%

Paprika extract: a green inhibitor for mitigating carbon steel disintegration in 1 M HCl pickling solution

Kamel

Fouda

Rashwan

et al. 2021

Green Chemistry Letters and Reviews

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In 1 M HCl pickling media, the paprika extract was used as an ecofriendly anti-corrosive material for carbon steel. Many strategies were utilized to estimate the mitigation efficacy such as potentiodynamic polarization (PP), frequency modulation (EFM), electrochemical impedance spectroscopy (EIS), and mass loss. Surface analyses were accomplished by scanning microscopy (SEM) and dispersion X-ray (EDX) techniques. The mitigation efficacy ameliorates with the concentration of extract and temperature. The inhibition is ascribed to the building of a protective coating at the surface of carbon steel that reduces its dissolution. The adsorption of Paprika extract on steel metal satisfied Langmuir , s model. The adsorption belongs to the physical and chemical types. The adsorption of the extract affected both anodic and cathodic reactions. Tafel curves demonstrated that the Paprika is a mixed inhibitor. The Nyquist curves confirmed that Paprika extract prohibits the disintegration of steel in acid media without changing the dissolution reaction mechanism. The adsorption of the Paprika extract on the carbon steel metal was confirmed by ATR -FTIR analysis and SEM examination. Using 300 ppm of Paprika extract, a maximum inhibitory efficacy of 95% was observed at 313 K.

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Synthesis and anticorrosive properties of epoxy polymer for CS in [1 M] HCl solution: Electrochemical, AFM, DFT and MD simulations

Cited by 98 publications

References 61 publications

Anticorrosion Effect of Ethoxylate Sulfanilamide Compounds on Carbon Steel in 1 M Hydrochloric Acid: Electrochemical and Theoretical Studies

Anticorrosion Effect of Ethoxylate Sulfanilamide Compounds on Carbon Steel in 1 M Hydrochloric Acid: Electrochemical and Theoretical Studies

Novel Natural Surfactant-Based Fatty Acids and Their Corrosion-Inhibitive Characteristics for Carbon Steel-Induced Sweet Corrosion: Detailed Practical and Computational Explorations

Paprika extract: a green inhibitor for mitigating carbon steel disintegration in 1 M HCl pickling solution

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