Electrochemical and Theoretical Study of Pyrazole 4-(4,5-dihydro-1H-pyrazol-5-yl)-N,N-dimethylaniline (D) as a Corrosion Inhibitor for Mild Steel in 1 M HCl

Chadli, Redouane; Elazouzi, M.; Khelladi, I; Elhourri, A.M.; Elmsellem, H.; Aouniti, A.; Mulengi, Joseph Kajima; Hammouti, B.

doi:10.4152/pea.201702065

Cited by 12 publications

(5 citation statements)

References 30 publications

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“…Although the gravimetric study reveals a rough estimate of CR and IE%, this technique is very important in selecting the corroding medium, temperature, and time of exposure of the study. [ 45 ] Results of the gravimetric study were compared with well‐established polarization and impedance spectroscopy techniques. To check and accuracy and reproducibility of results, all the gravimetric experiments were performed in triplicate.…”

Section: Resultsmentioning

confidence: 99%

Corrosion inhibition and adsorption mechanism of Morus nigra on mild steel in acidic medium: A sustainable and green approach

Kumar,

Sharma,

Kumari

2022

Vietnam Journal of Chemistry

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Morus nigra (Mulberry leaves) was tested as a green inhibitor for mild steel (MS) in 0.5 M HCl by theoretical, surface study, and experimental techniques. The impedance, polarization, microscopy, Langmuir, and DFT (computational) techniques were used for the adsorption and corrosion inhibition study. The experimental and theoretical study supports each other results. Adsorption parameters were observed by Langmuir, Gaussian09W (DFT), and BIOVIA Materials Studio softwares. The surface study was carried out by metallurgical microscopy technique. The theoretical study includes chemical potential, electron‐donating power, chemical hardness, HOMO, LUMO, metal inhibitor interaction energy, adsorption energy, etc. UV‐visible, NMR, and FTIR studies show that aspartic acid is the major constituent present in the mulberry leaves extract. A 91.62% corrosion protection was provided by the Morus nigra at 1000 ppm. Polarization study proved mixed inhibition. The green inhibitor follows both physical and chemical modes of adsorption. The biochemical and chemical oxygen demand of unused acid left after the gravimetric study was found in an acceptable range.

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Section: Resultsmentioning

confidence: 99%

Corrosion inhibition and adsorption mechanism of Morus nigra on mild steel in acidic medium: A sustainable and green approach

Kumar,

Sharma,

Kumari

2022

Vietnam Journal of Chemistry

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“…The impedance parameters, Rct, Cdl and IE% are listed in Table 3. The IE% was calculated from equation (2) [51,52]:…”

Section: Eismentioning

confidence: 99%

Investigation of Ziziphus Lotus Leaves Extract Corrosion Inhibitory Impact on Carbon Steel in a Molar Hydrochloric Acid Solution

Lahmady¹,

Anor²,

Forsal³

et al. 2023

Port. Electrochim. Acta

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In this research, ZL leaves extract was used as a new friendly inhibitor for improving CS corrosion resistance in a 1.0 M HCl solution. The extract performance was evaluated by PDP and EIS techniques. The outcomes of this investigation showed that corrosion IE% of ZL leaves C2H5OH extract raised from 86 to 95%, with concentrations from 1 to 3 g/L. EIS method confirmed that the extract IE% was stable in the long-term. However, when the test temperature increased from 293 K to 323 K, IE% decreased from 95 to 90%. PDP experiments results revealed that ZL leaves extract operated as a mixed-type inhibitor, with anodic predominance.

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“…The Nyquist plot has a semi-circular loop over the entire frequency range, which can be attributed to the charge-transfer that occurred between the molecules of inhibitors (FMs) and the MS surface in the 1.0 M HCl solution [19].…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

3,6-Di(pyridin-2-yl) pyridazine derivatives as original and new corrosion inhibitors in support of mild steel: Experimental studies and DFT investigational

2019

Int. J. Corros. Scale Inhib.

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Corrosion inhibition performance of three new synthesized novel compounds namely, 1-((3,6di(pyridin-2-yl)pyrdazin-4-yl)methyl)-indoline-2,3-dione (FM1), 4-(morpholinomethyl)-3,6di(pyridin-2-yl)pyridazine (FM2) and 3,6-di(pyridin-2-yl)-4-(p-tolyl)-pyridazine (FM3) on mild steel (MS) was investigated by HCl with 1 M concentration. The corrosion inhibition performance of the synthesized compounds was studied by weight lοss, impedance spectroscopy(EIS) and potentiodynamic polarization (PDP) methods. The results showed that tһe corrosion inhibition efficiency increases with the increase in the concentration of the compounds (FMs). The PDP measurements reveal that the type of these compounds is a mixed-type behavior. The results of impedance studies (EIS) showed that in the presence of FMs, the R ct values increase while the C dl values decrease due to the adsorption of inhibitors (FMs) on the mild steel surface. EIS study showed that there is one capacitance loop related to charge transfer mechanism. The adsorption of (FMs) on the mild steel surface obeys the Langmuir-adsorption isοtherm. The 1-((3,6-di(pyridin-2-yl)pyrdazin-4-yl)methyl)-indoline-2,3-dione (FM1) showed a better inhibition performance in comparison with the FM2 and FM3. The theoretical results which shows also a good correlation with the electrochemical experiments and weight loss measurements.

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Electrochemical and Theoretical Study of Pyrazole 4-(4,5-dihydro-1H-pyrazol-5-yl)-N,N-dimethylaniline (D) as a Corrosion Inhibitor for Mild Steel in 1 M HCl

Cited by 12 publications

References 30 publications

Corrosion inhibition and adsorption mechanism of Morus nigra on mild steel in acidic medium: A sustainable and green approach

Corrosion inhibition and adsorption mechanism of Morus nigra on mild steel in acidic medium: A sustainable and green approach

Investigation of Ziziphus Lotus Leaves Extract Corrosion Inhibitory Impact on Carbon Steel in a Molar Hydrochloric Acid Solution

3,6-Di(pyridin-2-yl) pyridazine derivatives as original and new corrosion inhibitors in support of mild steel: Experimental studies and DFT investigational

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