Ethanolamines corrosion inhibition effect on steel rebar in simulated realkalized concrete environments

Tong, Yunyun; Ye, Jinjian; Wang, Qiannan; Zhang, Hui; Yu, Hui; Seibou, Abdel-Okash

doi:10.1080/13467581.2022.2046004

Cited by 5 publications

(2 citation statements)

References 32 publications

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“…The cathodic Tafel constants were lower than those of the anode as shown in Table 2. Concerning the PPD plots, the polarization resistance for the corrosion of MS in the presence of 4,4-ABPFM and 4,4-APPFM was evaluated using Stern-Geary equation (equation 7) (Tong et al, 2023)…”

Section: Electrochemical Studiesmentioning

confidence: 99%

Experimental and Theoretical investigations of the Inhibition of the Corrosion of Mild Steel in HCl by Synthesized Piperazin Derivatives

Singaravelu¹,

Anand²,

Loganathan³

et al. 2023

Preprint

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In this study, two organic molecues namely, [4-(4-aminobenzoyl)-piperazin-1-yl)] furan − 2-yl) methanone (4-4-ABPFM) and 4-(4-aminophenylpiperazin-1-yl) furan-2-yl) methanone (4-4-APPFM) were synthesized and characterized using FTIR, UV-visible, thin layer chromatography, C-13 and proton NMR. The corrosion inhibition efficiencies of these molecules were tested using weight loss, polarization and AC impedance methods. Quantum chemical calculations (which included local selectivity, global reactivity and Monte Carlo simulation) were also implemented to complement the experimental data. The results obtained provided information confirmed that the synthesized compound has some inherent corrosion inhibition potentials due to the presence of aromatic rings, pi-electron systems, heteroatoms and corrosion structure parameters. The maximum inhibition efficiencies were 95 and 91% for 4,4-ABPFM and 4,4-APPFM respectively. The ideal fitness of the Langmuir isotherm with slope and R2 values approximating unity was also upheld. Theoretical calculation results showed strong accord to experimental values and supported higher efficiency for 4,4-ABPFM than 4,4-APPFM. Monte Carlo simulation showed that the adsorption energy is negative and also supported evidence drawn from the experiment, which is the spontaneous adsorption of the inhibitors on the metal surface.

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Section: Electrochemical Studiesmentioning

confidence: 99%

Experimental and Theoretical investigations of the Inhibition of the Corrosion of Mild Steel in HCl by Synthesized Piperazin Derivatives

Singaravelu¹,

Anand²,

Loganathan³

et al. 2023

Preprint

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“…The semi-volatile monoethanolamine (MEA) nds wide industrial application as a feedstock chemical, 1,2 a corrosion inhibitor, 3,4 and an acidic gas scrubber (e.g., for H 2 S and CO 2 ). [5][6][7][8] In CO 2 sequestration, it has been estimated that about 80 kg of gas-phase MEA is emitted for removing every ton of CO 2 , resulting in parts per million (ppm) levels of near-source concentration.…”

Section: Introductionmentioning

confidence: 99%

Monoethanolamine decay mediated by photolysis of nitrate in atmospheric particles: a brown carbon and organic phase formation pathway

Tian,

Zhang,

Wei

et al. 2023

Environ. Sci.: Atmos.

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Performance assessment of alko-amine corrosion inhibitors for use as an admixture in reinforced concrete structures: Experimental investigation and mechanism of action

Agrawal,

Patil,

Muhammad

2024

Journal of Building Engineering

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Ethanolamines corrosion inhibition effect on steel rebar in simulated realkalized concrete environments

Cited by 5 publications

References 32 publications

Experimental and Theoretical investigations of the Inhibition of the Corrosion of Mild Steel in HCl by Synthesized Piperazin Derivatives

Experimental and Theoretical investigations of the Inhibition of the Corrosion of Mild Steel in HCl by Synthesized Piperazin Derivatives

Monoethanolamine decay mediated by photolysis of nitrate in atmospheric particles: a brown carbon and organic phase formation pathway

Performance assessment of alko-amine corrosion inhibitors for use as an admixture in reinforced concrete structures: Experimental investigation and mechanism of action

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