A study on the anti-corrosion mechanism of the eco-friendly inhibitor Ribavirin on Q235 steel in an acidic chloride environment

Dong, Hongmei; Ding, Lifeng; Ran, Boyuan; Song, Yongbo; Wang, Ruihong; Zhao, Lei; Niu, Yulan

doi:10.1016/j.ijoes.2023.100250

Cited by 11 publications

(1 citation statement)

References 42 publications

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“…However, the development of effective and environmentally friendly inhibitors is an ongoing challenge. Researchers have been exploring various materials and methods to enhance the anticorrosive capabilities of inhibitors, including the use of organic compounds (Alao, Sanni et al 2023, Dong, Ding et al 2023.…”

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confidence: 99%

Exploring the Anticorrosive Capabilities of new hybrid epoxy/Br: A Comprehensive Study

El-Aouni,

Dagdag,

Amri

et al. 2023

Preprint

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Corrosion inhibition of carbon steel structures in acidic environments is imperative across various sectors. This study investigated a novel epoxy resin, bisphenol A tetrabromo dipropoxy dianiline tetraglycidyl ether (TGEDADPTBBA), as an new hybrid epoxy/Br inhibitor for E24 carbon steel corrosion in 1.0 M hydrochloric acid using multi-pronged experimental and theoretical methods. Potentiodynamic polarization revealed TGEDADPTBBA acted as a mixed-type inhibitor, achieving 95–97% inhibition efficiency at 10− 3 M. EIS showed TGEDADPTBBA suppressed charge transfer resistance, implying decreased corrosion rate. EFM provided additional evidence of inhibition via reduced corrosion current density, diffusion impedance, and corrosion rate. TGEDADPTBBA's adsorption on steel followed the Langmuir isotherm, indicating a maximum monolayer. SEM/EDS showed TGEDADPTBBA formed a protective film inhibiting elemental dissolution. Quantum chemical calculations and molecular dynamics simulations were synergized to gain molecular-level insight. Electron density mapping revealed TGEDADPTBBA's heteroatoms served as adsorption sites. Dynamics revealed bioinspired intermolecular chemical and Van der Waals interactions facilitated stable layer formation. Energetically, TGEDADPTBBA adsorption was favorable. Collectively, this multi-pronged study employing polymer science, surface science, and computational chemistry demonstrated TGEDADPTBBA's broad applicability as a corrosion inhibitor for E24 carbon steel infrastructure. In particular, TGEDADPTBBA's synergistic performance in inhibiting charge transfer, diffusion, and film formation positions it as a green and cost-effective alternative to toxic chromates.

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confidence: 99%

Exploring the Anticorrosive Capabilities of new hybrid epoxy/Br: A Comprehensive Study

El-Aouni,

Dagdag,

Amri

et al. 2023

Preprint

View full text Add to dashboard Cite

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Synergistic mechanism of amidation on corrosion inhibition of laurate triethanolamine for HT300 gray cast iron in NaCl solution

Hang

2024

Engineering Reports

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Sarcosine was inserted between fatty chain and carboxylic group of lauric acid to obtain lauroyl sarcosine, and the corrosion inhibition of lauroyl sarcosine triethanolamine (LSTEA) was significantly improved. The synergistic mechanism of amide group and lauric acid was investigated by comparing the corrosion behavior on the surface of HT300 gray cast iron in 330 mg/L NaCl solution. The results showed that both lauryl triethanolamine (LATEA) and LSTEA could prevent corrosion. At 298 K, when 1000 mg/L inhibitor was added, the inhibition rates are 71.93% and 83.89%, respectively. The morphology analysis also verified that LSTEA had better inhibition properties than LATEA. Comparing the adsorption parameters and Density Functional Theory (DFT) calculation results, it was found that LATEA and LSTEA could spontaneously adsorb on the surface of gray cast iron as monolayer to form a stable protective layer. However, the chelation of amide group and the electron absorption effect could make the electron density distributed at the polar end of the whole molecule, covering the active sites at the interface to the maximum extent, so that LSTEA has more excellent corrosion inhibition for gray cast iron.

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Hybrid epoxy/Br inhibitor in corrosion protection of steel: experimental and theoretical investigations

El-Aouni,

Dagdag,

Amri

et al. 2023

Environ Sci Pollut Res

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A study on the anti-corrosion mechanism of the eco-friendly inhibitor Ribavirin on Q235 steel in an acidic chloride environment

Cited by 11 publications

References 42 publications

Exploring the Anticorrosive Capabilities of new hybrid epoxy/Br: A Comprehensive Study

Exploring the Anticorrosive Capabilities of new hybrid epoxy/Br: A Comprehensive Study

Synergistic mechanism of amidation on corrosion inhibition of laurate triethanolamine for HT300 gray cast iron in NaCl solution

Hybrid epoxy/Br inhibitor in corrosion protection of steel: experimental and theoretical investigations

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