Two amino acid derivatives as high efficient green inhibitors for the corrosion of carbon steel in CO2-saturated formation water

Hou, Baoshan; Li, Y.Y.; Lei, Ying; Wang, X.; Liu, H.F.; Zhang, G.A.

doi:10.1016/j.corsci.2021.109596

Cited by 134 publications

(31 citation statements)

References 52 publications

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“…A higher HOMO energy value suggests better electron transportation ability to Fe, while lower LUMO energy values indicate greater ability to receive electrons from Fe. Additionally, a low Δ E value corresponds to high reactivity and higher inhibition capability. , According to Figure S3, GA exhibits a greater inhibition capability than Phen.…”

Section: Resultsmentioning

confidence: 99%

“…Additionally, a low ΔE value corresponds to high reactivity and higher inhibition capability. 44,45 According to Figure S3, GA exhibits a greater inhibition capability than Phen. Electrostatic potential (ESP) analysis was conducted to investigate the local polarity of GA and Phen molecules and their electrostatic interaction with the external environment.…”

Section: Morphology and Structure Of Pvb@ga-phenmentioning

confidence: 99%

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Synergetic Inhibition and Corrosion-Diagnosing Nanofiber Networks for Self-Healing Protective Coatings

Cao,

Wang,

Cheng

et al. 2023

ACS Appl. Mater. Interfaces

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Organic coatings lack durability in marine corrosive environments. Herein, we designed a self-healing coating with a novel nanofiber network filler for enhanced protection. Using electrospinning, we created a core−shell structure nanofiber network consisting of polyvinyl butyral (PVB) as the shell material and gallic acid (GA) and phenanthroline (Phen) as the core material. The PVB@GA-Phen nanofiber network, which includes synergistic corrosion inhibitors (GA-Phen), was embedded in an epoxy coating (PVB@GA-Phen/epoxy) and applied to carbon steel. Density functional theory (DFT) calculations and molecular dynamics (MD) simulations demonstrated that the GA-Phen combination, through hydrogen bond interaction, facilitated inhibitor adsorption on the steel surface. The GA-Phen combination diagnosed corrosion and formed a protective film on the scratched areas. The sustained release of Phen-GA combination inhibitors for up to 240 h resulted in an 88.63% healing efficiency of the PVB@GA-Phen/ epoxy (PGP/EP) coating. The long-term corrosion resistance tests confirmed the effective barrier performance of the PGP/EP coating in 3.5 wt % NaCl solution. Moreover, the incorporation of the nanofiber network in the epoxy coating provided passive barrier, corrosion-diagnosing, and anticorrosion properties for carbon steel protection. The designed coating has the potential to continuously monitor the coating/metal system and could serve as a foundation for developing new anticorrosion coatings.

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Section: Resultsmentioning

confidence: 99%

Section: Morphology and Structure Of Pvb@ga-phenmentioning

confidence: 99%

Synergetic Inhibition and Corrosion-Diagnosing Nanofiber Networks for Self-Healing Protective Coatings

Cao,

Wang,

Cheng

et al. 2023

ACS Appl. Mater. Interfaces

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“…Surface analysis (AFM) of API 5L X52 carbon steel specimens, with dimensions 15 × 10 × 2.5 mm, was performed by Nano surf Flex AFM analysis without and with exposure to oil field produced water solution without and with 0.5 mM of the prepared inhibitor HM-1228 at 25 ± 1 o C. Carbon steel samples were stored, and then dried for AFM analysis 8,19 .…”

Section: Surface Morphology Investigationsmentioning

confidence: 99%

“…The higher inhibition efficacy could be due to the existence of S , O, N atoms, and an aromatic moieties and the use of a compound that provides strong adsorption centres and increases the layer thickness 8 . The order of inhibition effectiveness of the inhibitors in oilfield produced water solutions follows the order of: HM-1228˃ HM-1227˃ HM-1226, which was consistent with the obtained PDP data.…”

Section: Eis Studiesmentioning

confidence: 99%

Novel Biphenylidene-Thiopyrimidine Derivatives as Corrosion Inhibitors for Carbon-Steel in Oilfield Produced Water

Ali

Shaban

Abousalem

et al. 2023

Preprint

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Three biphenylidene-thiopyrimidine derivatives were newly synthesized, characterized and their corrosion inhibition effect on corrosion of API 5L X52 carbon steel in oilfield produced water was measured by using electrochemical methods: Potentiodynamic polarization technique and electrochemical impedance spectroscopy (EIS). EIS results using an equivalent circuit to model the corrosion inhibition process were analyzed and discussed. The results of Tafel polarization indicate the tested inhibitors are of mixed-type. The adsorption of these compounds followed Langmuir isotherm. The surface of uninhibited and inhibited carbon steel was investigated by Atomic Force Microscopy (AFM), observing surface improvement when carbon steel samples exposed to inhibited corrosive solution. Quantum chemical calculations and molecular simulations were employed to elucidate the corrosion inhibition mechanism. The HM-1228 inhibitor exhibited corrosion inhibition efficiency at 94.8%, and the increase in performance is attributed to the presence of di-N-ethyl groups, which enhances the electron donating ability as well as lipophilic properties.

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“…Carbon steel (CS) is a widespread engineering and structural material in manufacturing applications , because of its outstanding mechanical property and low cost. However, CS is vulnerable to corrosion through industrial operations, for example, industrial cleaning, acid pickling, acidizing, etc. − The industrial cleaning performed by H 2 SO 4 is utilized more often than HCl and HNO 3 .…”

Section: Introductionmentioning

confidence: 99%

Efficient Synthesis of 6,7-Dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile Compounds and Their Applicability As Inhibitor Films for Steel Alloy Corrosion: Collective Computational and Practical Approaches

et al. 2022

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An effective method for designing new heterocyclic compounds of 6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile derivatives (CAPDs) was presented through cyclocondensation reaction between 2,5-diarylidenecyclopentanone derivatives and propanedinitrile, and the cyclocondensation reaction succeeded using a sodium alkoxide solution (sodium ethoxide or sodium methoxide) as the reagent and the catalyst. The synthesized CAPD derivatives were employed as novel inhibitors for carbon steel (CS) corrosion in a molar H 2 SO 4 medium. The corrosion protection proficiency was investigated by electrochemical measurements (open circuit potential vs time ( E OCP vs t ), potentiodynamic polarization plots (PDP), and electrochemical impedance spectroscopy (EIS)) and surface morphology (scanning electron microscopy (SEM)) examinations. The results show that the CAPD derivatives exhibit mixed type inhibitors and a superior inhibition efficiency of 97.7% in the presence of 1.0 mM CAPD-1 . The adsorption of CAPD derivatives on the CS interface follows the Langmuir isotherm model, including physisorption and chemisorption. Scanning electron microscopy (SEM) exploration confirmed the adsorption of the CAPD derivatives on the CS substrate. Monte Carlo (MC) simulations and DFT calculations revealed that the efficacy of the CAPD molecules correlates well with their structures, and this protection was attributed to their adsorption on the CS surface.

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Two amino acid derivatives as high efficient green inhibitors for the corrosion of carbon steel in CO2-saturated formation water

Cited by 134 publications

References 52 publications

Synergetic Inhibition and Corrosion-Diagnosing Nanofiber Networks for Self-Healing Protective Coatings

Synergetic Inhibition and Corrosion-Diagnosing Nanofiber Networks for Self-Healing Protective Coatings

Novel Biphenylidene-Thiopyrimidine Derivatives as Corrosion Inhibitors for Carbon-Steel in Oilfield Produced Water

Efficient Synthesis of 6,7-Dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile Compounds and Their Applicability As Inhibitor Films for Steel Alloy Corrosion: Collective Computational and Practical Approaches

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