A new pyridazine derivative synthesized as an efficient corrosion inhibitor for copper in sulfuric acid medium: Experimental and theoretical calculation studies

Luo, Wei; Lin, Qingyun; Ran, Xue; Li, Wenpo; Tan, Bochuan; Fu, Anqing; Zhang, Shengtao

doi:10.1016/j.molliq.2021.117370

Cited by 52 publications

(11 citation statements)

References 58 publications

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“…10 is considerably closer to one (i.e. 0.9491), showing that this procedure is valid in defining the adsorption behavior 52 . Furthermore, the EAAP extract's physical adsorption characteristics are demonstrated by the smallest K ads value (0.0166 l mg -1 ) 53 .…”

Section: Resultsmentioning

confidence: 66%

Theoretical, chemical, and electrochemical studies of Equisetum arvense extract as an impactful inhibitor of steel corrosion in 2 M HCl electrolyte

Deyab

Mohsen

Guo

2022

Sci Rep

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A new type of Equisetum arvense aerial part (EAAP) extract was ready to be tested as a corrosion inhibitor for steel-based parts in Multi-stage flash (MSF) segments while the segments were being acid cleaned. The EAAP extract was identified using Fourier-transform infrared (FTIR) and High-performance liquid chromatography (HPLC). When compared to the specimen exposed to blank solution, EAAP extract molecules covered about 97% of the carbon steel surface in 2 M HCl solution, and the corrosion rate was reduced to 0.58 ± 0.02 μg cm−2 h−1 at 300 mg l−1. EAAP extract tends to have a blended impact on both anodic and cathodic sites on the surface of carbon steel. The thermodynamic activation factors are substantially higher in the presence of extract solution than in the absent of extract, demonstrating that the carbon steel surface would corrode slowly in the presence of EAAP extract. Theoretical models were used to validate the adsorption of EAAP extract on steel surfaces.

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Section: Resultsmentioning

confidence: 66%

Theoretical, chemical, and electrochemical studies of Equisetum arvense extract as an impactful inhibitor of steel corrosion in 2 M HCl electrolyte

Deyab

Mohsen

Guo

2022

Sci Rep

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“…The E HOMO and E LUMO values represent the ability of electron-donating and electron-accepting. Generally, the lower value of energy gap signifies easier adsorption on the metal surface and higher protection effectiveness (Luo et al, 2021). Owing to that dense electron-rich regions appear around O atoms from the HOMO orbital of DHBP, it could be concluded that DHBP can adsorb on the surface of carbon steel through formation of covalent bonds between lone pairs from oxygen atoms and unoccupied orbitals from Fe atoms.…”

Section: Fourier Transfer Infrared Spectroscopy and Ultraviolet Spectrum Analysismentioning

confidence: 99%

Anti-Corrosion Mechanism of Parsley Extract and Synergistic Iodide as Novel Corrosion Inhibitors for Carbon Steel-Q235 in Acidic Medium by Electrochemical, XPS and DFT Methods

Chen

Zhang

Liao

et al. 2021

Front. Bioeng. Biotechnol.

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The parsley extract (PLE) was prepared using absolute ethyl alcohol. The PLE and synergistic iodide were firstly utilized as efficacious corrosion inhibitors to slow down the corrosion rate of carbon steel-Q235 in 0.5 mol/L H2SO4 solution. The anti-corrosion performance was researched by weight loss method, electrochemical tests, surface analysis and quantum chemistry calculation. Results of electrochemical and weight loss tests show that the synergetic PLE and I− exhibit the optimal corrosion inhibition efficiency 99%. The combined inhibitor displays the favorable long-term corrosion inhibition effect, and the inhibition efficiency can maintain more than 90% after 144 h immersion. The introduction of I− makes carbon steel surface with higher negative charge amount, which could be beneficial to the interaction between corrosion inhibitor and Fe atoms. The adsorption behavior obeys the Langmuir isotherm adsorption, and involves chemical and physical adsorption. On the basis of electrochemical consequences and theoretical calculation, the adsorption process and anti-corrosion mechanisms are further explored.

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“…Organic corrosion inhibitors are widely utilized because of their inexpensive cost and high corrosion resistance. Luo et al 13 produced and developed a novel type of pyridazine-based compound as a copper corrosion inhibitor in 0.5 M sulphuric acid. At 298 K, this inhibitor has a maximal inhibitory effectiveness of 94.1%.…”

Section: Introductionmentioning

confidence: 99%

Experimental and theoretical evaluations on Oleuropein as a natural origin corrosion inhibitor for copper in acidic environment

Deyab

Mohsen

Bloise

et al. 2022

Sci Rep

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Copper corrosion in acidic cleaning solutions is a major worry for heat exchangers. Corrosion inhibitors derived from natural sources might be a viable option. The isolation of Oleuropein compound from olive leaf and investigation of its anticorrosion potential for copper in 1.0 M H2SO4 solution are reported here. All experimental results from LC–MS, FT-IR, 1H and 13C-NMR characterizations support the molecular structure of Oleuropein. Electrochemical and gravimetric tests were used to evaluate the corrosion inhibition capabilities of Oleuropein. According to polarization investigation, Oleuropein is a mixed-type inhibitor. Oleuropein's inhibitory efficacy increases with concentration, attaining an optimum value (98.92%) at 100 mg L−1. At high temperatures, Oleuropein can be considered an efficient inhibitor. Thermodynamic variables for the activation operation and copper dissolution were computed and addressed as well. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) examinations revealed that Oleuropein produced an outer layer on the copper surface, shielding it from severe acid damage. Quantum chemical simulations were employed to propose molecular explanations for Oleuropein's inhibitory actions.

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A new pyridazine derivative synthesized as an efficient corrosion inhibitor for copper in sulfuric acid medium: Experimental and theoretical calculation studies

Cited by 52 publications

References 58 publications

Theoretical, chemical, and electrochemical studies of Equisetum arvense extract as an impactful inhibitor of steel corrosion in 2 M HCl electrolyte

Theoretical, chemical, and electrochemical studies of Equisetum arvense extract as an impactful inhibitor of steel corrosion in 2 M HCl electrolyte

Anti-Corrosion Mechanism of Parsley Extract and Synergistic Iodide as Novel Corrosion Inhibitors for Carbon Steel-Q235 in Acidic Medium by Electrochemical, XPS and DFT Methods

Experimental and theoretical evaluations on Oleuropein as a natural origin corrosion inhibitor for copper in acidic environment

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