Some new phospho-zwitterionic Gemini surfactants as corrosion inhibitors for carbon steel in 1.0 M HCl solution

Shaban, Samy M.; Elsharif, Asma M.; Elged, Ahmed H.; Eluskkary, M.M.; Aiad, Ismail; Soliman, E. A.

doi:10.1016/j.eti.2021.102051

Cited by 29 publications

(17 citation statements)

References 64 publications

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“…The activation parameters like activation entropy (∆S*), activation enthalpy (∆H*), and activation energy ( E a ) were studied for the optimum concentration of 0.6163 mM at 30, 40, 50, and 60 °C to further examine the inhibition properties of CMEA and their dependence on the corrosion rate (

. The activation parameters were calculated by the Arrhenius and Eyring equations given below [ 33 , 34 , 43 , 44 ]:

where

, T , h , N , A , and E a denote the corrosion rate, temperature, Planck constant, Avogadro number, Arrhenius pre-exponential factor, and corrosion activation energy, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Surfactants are a particular family of organic inhibitors that adsorb on metal surfaces, offering effective metal corrosion protection [ 25 , 26 , 27 ]. The study and synthesis of surfactants (non-ionic, anionic, cationic, and zwitterionic) as inhibitors in diverse media have been the focus of many researchers [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ]. In addition to being ecologically friendly and sustainable, non-ionic surfactants also have the potential to reduce corrosion.…”

Section: Introductionmentioning

confidence: 99%

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Coco Monoethanolamide Surfactant as a Sustainable Corrosion Inhibitor for Mild Steel: Theoretical and Experimental Investigations

Ganjoo

Sharma

et al. 2023

Molecules

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Recent studies indicate that surfactants are a relatively new and effective class of corrosion inhibitors that almost entirely meet the criteria for a chemical to be used as an aqueous phase corrosion inhibitor. They possess the ideal hydrophilicity to hydrophobicity ratio, which is crucial for effective interfacial interactions. In this study, a coconut-based non-ionic surfactant, namely, coco monoethanolamide (CMEA), was investigated for corrosion inhibition behaviour against mild steel (MS) in 1 M HCl employing the experimental and computational techniques. The surface morphology was studied employing the scanning electron microscope (SEM), atomic force microscope (AFM), and contact measurements. The critical micelle concentration (CMC) was evaluated to be 0.556 mM and the surface tension corresponding to the CMC was 65.28 mN/m. CMEA manifests the best inhibition efficiency (η%) of 99.01% at 0.6163 mM (at 60 °C). CMEA performs as a mixed-type inhibitor and its adsorption at the MS/1 M HCl interface followed the Langmuir isotherm. The theoretical findings from density functional theory (DFT), Monte Carlo (MC), and molecular dynamics (MD) simulations accorded with the experimental findings. The MC simulation’s assessment of CMEA’s high adsorption energy (−185 Kcal/mol) proved that the CMEA efficiently and spontaneously adsorbs at the interface.

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. The activation parameters were calculated by the Arrhenius and Eyring equations given below [ 33 , 34 , 43 , 44 ]:

where

, T , h , N , A , and E a denote the corrosion rate, temperature, Planck constant, Avogadro number, Arrhenius pre-exponential factor, and corrosion activation energy, respectively.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Coco Monoethanolamide Surfactant as a Sustainable Corrosion Inhibitor for Mild Steel: Theoretical and Experimental Investigations

Ganjoo

Sharma

et al. 2023

Molecules

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“…The comprehensive understanding of the electrochemical behavior under investigation was derived from plotting both cathodic and anodic polarization curves. The scanning rate was maintained at 1 mV/s, and the working electrode's potential was varied from −900 mV to −100 mV/SCE to generate the polarization curves [1,2] …”

Section: Methodsmentioning

confidence: 99%

“…The prevalence of metal corrosion is universally acknowledged as a critical factor contributing to extensive environmental and economic damage across industrial landscapes. Corrosion, characterized as the disintegration of metals and the alteration of their core properties due to chemical interactions with environmental elements, leads to diminished material strength and pronounced economic impacts in the industrial realm [1,2] . Mild steel is extensively utilized in the petroleum and chemical industries due to its cost‐effectiveness, superior mechanical strength, and ease of fabrication compared to other metals and alloys [3,4] .…”

Section: Introductionmentioning

confidence: 99%

Enhancing Corrosion Resistance of Mild Steel in 1M HCl: Investigation of New Benzoxazepine Derivatives Through Synthesis, Electrochemical Analysis, Surface Analysis, XPS, DFT, and Molecular Dynamics Simulation

Kharbouch,

Dahmani,

Errahmany

et al. 2024

ChemistrySelect

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This research delineates the corrosion inhibitory efficiency of two newly synthesized benzoxazepine derivatives – [3,3‐dimethyl‐11‐phenyl‐3,4,5,11‐tetrahydrodibenzo[b,e] [1,4]oxazepine‐1(2 H)‐one (S1)] and [11‐(4‐chlorophenyl)‐3,3‐dimethyl‐3,4,5,11‐tetrahydrodibenzo[b,e][1,4]oxazepine‐1(2 H)‐one (S2)] – on mild steel in 1M HCl milieu. These derivatives were characterized by proton (1H NMR) and carbon (13C NMR) nuclear magnetic resonance spectroscopy. The experimental approach encompassed potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. The corrosion inhibition efficacy of S1 and S2 was concentration‐dependent, with their efficiencies peaking at 92.0 % and 92.1 %, respectively, at a 10−3 M concentration. Surface characterization, conducted using scanning electron microscopy (SEM), energy‐dispersive X‐ray analysis (EDS), X‐ray diffraction (XRD), contact angle measurements, and X‐ray photoelectron spectroscopy (XPS), corroborated the formation of a protective barrier layer on the mild steel surface. Additionally, using an inductive approach, UV‐visible spectrometry was employed to elucidate the adsorption behaviors of these inhibitors on the steel surface. Density functional theory (DFT) and molecular dynamics (MD) simulations were utilized to decipher the interaction mechanisms and adsorption modalities, unveiling critical insights into the interactions of S1 and S2 with the mild steel surface. This comprehensive analysis highlights the robust corrosion inhibition potential of the newly synthesized benzoxazepine derivatives and illuminates their prospective utility as effective inhibitors for mild steel in corrosive environments.

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“…Few surfactants manifest less than 90% efficiency, even at a very high concentration of 1000 ppm (mg L À1 ). [40][41][42] This motivated the selection of the present polymer-based surfactant as a corrosion inhibitor for industrial-grade C1018 steel in 1 M HCl. To the best of our knowledge, this is the first documentation of a copolymeric surfactant as a corrosion inhibitor.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of polymeric surfactant containing bis-cationic motifs as a highly efficient acid corrosion inhibitor for C1018 carbon steel

et al. 2023

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Some new phospho-zwitterionic Gemini surfactants as corrosion inhibitors for carbon steel in 1.0 M HCl solution

Cited by 29 publications

References 64 publications

Coco Monoethanolamide Surfactant as a Sustainable Corrosion Inhibitor for Mild Steel: Theoretical and Experimental Investigations

Coco Monoethanolamide Surfactant as a Sustainable Corrosion Inhibitor for Mild Steel: Theoretical and Experimental Investigations

Enhancing Corrosion Resistance of Mild Steel in 1M HCl: Investigation of New Benzoxazepine Derivatives Through Synthesis, Electrochemical Analysis, Surface Analysis, XPS, DFT, and Molecular Dynamics Simulation

Synthesis of polymeric surfactant containing bis-cationic motifs as a highly efficient acid corrosion inhibitor for C1018 carbon steel

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