Sulfur-doped graphitic carbon nitride (S-g-C3N4) as an efficient corrosion inhibitor for X65 pipeline steel in CO2- saturated 3.5% NaCl solution: Electrochemical, XPS and Nanoindentation Studies

Anadebe, Valentine Chikaodili; Chukwuike, V.I.; Selvaraj, Vinoth Kumar; Pandikumar, Alagarsamy; Barik, R.C.

doi:10.1016/j.psep.2022.06.055

Cited by 57 publications

(22 citation statements)

References 66 publications

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“…Additionally, a slight variation in E corr values supports the mixed nature of these compounds 60 . According to this study's findings, the inhibitors under examination are mixed type inhibitors with a maximum displacement in E corr of 47 mV 61 . The order of the prepared inhibitors based on IE% is BHCA > HCA.…”

Section: Electrochemical Measurements Pdp Testsmentioning

confidence: 85%

Synthesis and characterization of novel acrylamide derivatives and their use as corrosion inhibitors for carbon steel in hydrochloric acid solution

Fouda

Khalil

El-Mahdy

et al. 2023

Sci Rep

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Two new acrylamide derivatives were prepared namely: “N-(bis(2-hydroxyethyl) carbamothioyl) acrylamide (BHCA) and N-((2-hydroxyethyl) carbamothioyl) acrylamide( HCA) and their chemical structures were analyzed and confirmed using IR and 1H NMR”. These chemicals were investigated as corrosion inhibitors for carbon steel (CS) in 1 M HCl medium using chemical method (mass loss, ML), and electrochemical techniques including potentiodynamic polarization (PDP), and electrochemical impedance spectroscopy (EIS). The results showed that the acrylamide derivatives work well as corrosion inhibitors, with inhibition efficacy (%IE) reaching 94.91–95.28% at 60 ppm for BHCA and HCA, respectively. Their inhibition depends mainly on their concentration and temperature of the solution. According to the PDP files, these derivatives function as mixed-type inhibitors that physically adsorb on the CS surface in accordance with the Langmuir adsorption isotherm, creating a thin coating that shields the CS surface from corrosive fluids. The charge transfer resistance (Rct) increased and the double layer capacitance (Cdl) decreased as a result of the adsorption of the used derivatives. Calculated and described were the thermodynamic parameters for activation and adsorption. Quantum chemistry computations and Monte Carlo simulations were examined and discussed for these derivatives under investigation. Surface analysis was checked using atomic force microscope (AFM). Validity of the obtained data was demonstrated by the confirmation of these several independent procedures.

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Section: Electrochemical Measurements Pdp Testsmentioning

confidence: 85%

Synthesis and characterization of novel acrylamide derivatives and their use as corrosion inhibitors for carbon steel in hydrochloric acid solution

Fouda

Khalil

El-Mahdy

et al. 2023

Sci Rep

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show abstract

“…In addition to increasing the values of the inhibition coefficient, which confirms the ability of the compounds ACR-2 and ACR-3 to provide a highly efficient inhibitory performance for copper in nitric acid owing to the adsorption of a layer of the inhibitor on the metal’s surface. Additionally, a small change in the values of E corr , which proves the mixed character of these compounds [ 40 , 41 ]. Inferia et al report that the inhibitors are either cathodic or anodic types depending on the E corr value shift, whereas if E corr value shifts below 85 mV, the inhibitor is considered a mixed type.…”

Section: Resultsmentioning

confidence: 99%

A Study of the Synthesis and Characterization of New Acrylamide Derivatives for Use as Corrosion Inhibitors in Nitric Acid Solutions of Copper

Abu‐Rayyan

Jahdaly²,

AlSalem³

et al. 2022

Nanomaterials

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The objective of this research was to explore the impact of corrosion inhibition of some synthetic acrylamide derivatives 2-cyano-N-(4-hydroxyphenyl)-3-(4-methoxyphenyl)acrylamide (ACR-2) and 2-cyano-N-(4-hydroxyphenyl)-3-phenylacrylamide (ACR-3) on copper in 1.0 M nitric acid solution using chemical and electrochemical methods, including mass loss as a chemical method and electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PP) as electrochemical methods. By Fourier-transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (1HNMR), and mass spectroscopy (MS) methods, the two compounds were verified and characterized. There is evidence that both compounds were effective corrosion inhibitors for copper in 1.0 M nitric acid (HNO3) solutions, as indicated by the PP curves, which show that these compounds may be considered mixed-type inhibitors. With the two compounds added, the value of the double-layer capacitance was reduced. In the case of 20 × 10−5 M, they reached maximum efficiencies of 84.5% and 86.1%, respectively. Having studied its behavior during adsorption on copper, it was concluded that it follows chemical adsorption and Langmuir isotherm. The theoretical computations and the experimental findings were compared using density functional theory (DFT) and Monte Carlo simulations (MC).

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“…According to Inferia et al, the kind of inhibitor depends on the Ecorr value shift; if the Ecorr value shift is below 85 mV, the inhibitor is thought to be a mixed type. "According to this study's findings, the inhibitor under examination is a mixed-type inhibitor with a maximum displacement in Ecorr of 85 mV [52]. The order of the prepared inhibitors based on IE% is BHCA > HCA".…”

Section: Electrochemical Measurements 351 Pdp Testsmentioning

confidence: 88%

Two novel acrylamide derivatives as corrosion inhibitors for API 5l x52 carbon steel in hydrochloric acid solution: synthesis and characterization

Fouda

Khalil

El-Mahdy

et al. 2023

Preprint

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Two new acrylamide derivatives were prepared namely: “N-(bis(2-hydroxyethyl) carbamothioyl) acrylamide (BHCA) and N-((2-hydroxyethyl) carbamothioyl) acrylamide( HCA) and their chemical structures were analyzed and confirmed using IR and 1H NMR”. These chemicals were investigated as corrosion inhibitors for carbon steel (CS) in 1 M HCl medium using chemical method (weight loss, WL), and electrochemical techniques including potentiodynamic polarization (PDP), and electrochemical impedance spectroscopy (EIS). The results showed that the acrylamide derivatives work well as corrosion inhibitors, with inhibition efficacy (%IE) reaching 94.91–95.28% at 60 ppm for BHCA and HCA, respectively. Their inhibition depend mainly on their concentration and temperature of the solution. According to the PDP files, these derivatives function as mixed-type inhibitors that physically adsorb on the CS surface in accordance with the Langmuir adsorption isotherm, creating a thin coating that shields the CS surface from corrosive fluids. The charge transfer resistance increased and the double layer capacitance (Cdl) decreased as a result of the adsorption of the used derivatives (Rct). Calculated and described were the thermodynamic parameters for activation and adsorption. Quantum chemistry computations and Monte Carlo simulations were examined and discussed for these derivatives under investigation. Validity of the obtained data was demonstrated by the confirmation of these several independent procedures.

show abstract

Sulfur-doped graphitic carbon nitride (S-g-C3N4) as an efficient corrosion inhibitor for X65 pipeline steel in CO2- saturated 3.5% NaCl solution: Electrochemical, XPS and Nanoindentation Studies

Cited by 57 publications

References 66 publications

Synthesis and characterization of novel acrylamide derivatives and their use as corrosion inhibitors for carbon steel in hydrochloric acid solution

Synthesis and characterization of novel acrylamide derivatives and their use as corrosion inhibitors for carbon steel in hydrochloric acid solution

A Study of the Synthesis and Characterization of New Acrylamide Derivatives for Use as Corrosion Inhibitors in Nitric Acid Solutions of Copper

Two novel acrylamide derivatives as corrosion inhibitors for API 5l x52 carbon steel in hydrochloric acid solution: synthesis and characterization

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