Performance and computational studies of two soluble pyran derivatives as corrosion inhibitors for mild steel in HCl

Khattabi, M.; Benhiba, F.; Tabti, Salima; Djedouani, Amel; Assyry, A. El; Touzani, Rachid; Warad, Ismail; Oudda, H.; Zarrouk, A.

doi:10.1016/j.molstruc.2019.06.070

Cited by 92 publications

(26 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 2 represents the inhibition efficiency and the corrosion rate of the studied inhibitor KYNA. This inference establish the prosperous inhibitory action for the KYNA is obtained which should be attributed to the formation of a protective film at the metal/solution interface [13] Electrochemical experiments…”

Section: Weight Loss Studiessupporting

confidence: 56%

“…From Fig. 6, it can be seen that with the addition of KYNA, both the anodic as well as cathodic curves shifted toward lower current density, which indicates that in the presence of KYNA, both the anodic dissolution of iron and the cathodic evaluation of hydrogen gas are inhibited [13]. These experimental results indicate that the addition of KYNA may affect the anodic and the cathodic corrosion reaction.…”

Section: Electrochemical Polarization (Ep) Studiesmentioning

confidence: 81%

“…Among the available methods of corrosion control, the use of organic corrosion inhibitors is one of the most effective and economic [5][6][7][8]. Organic compounds containing heteroatoms like P, S, N, O, etc., are considered as a potential class of corrosion inhibitors, which are adsorbed on the metal surface and block the active sites, thereby reducing the rate of corrosion [9][10][11][12][13]. The decrease in rate of corrosion indicates the adsorption of inhibitor molecules on the metal/alloy surface.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental and computational approach of an expired antibiotic drug Kynurenic acid as an efficient corrosion inhibitor for mild steel in HNO3 medium

et al. 2021

View full text Add to dashboard Cite

An expired antibiotic drug Kynurenic acid (KYNA) was investigated for its adsorption and corrosion inhibition performance on mild steel (MS) in 1.0 M HNO 3 solution. Chemical methods like weight loss measurement, electrochemical methods like impedance spectroscopy, potentiodynamic polarization and linear polarization measurements were used to identify the adsorption behavior of KYNA in HNO 3 solution. The inhibition efficiency improved with an increase in KYNA concentration in nitric acid medium. The adsorption process of KYNA was spontaneous and favored Langmuir adsorption isotherm. Potentiodynamic polarization measurements indicate that the evaluated inhibitor acts as mixed type. The values of thermodynamic and activation parameters (R 2 and ΔG ads 0 ) were calculated and discussed. The surface morphology of MS was characterized by using scanning electron microscopy, atomic force microscopy, Fourier transforms infrared spectroscopy and theoretical study. From both the experimental and theoretical studies, the investigated inhibitor molecule exhibited surface active properties and performed as a good inhibitor for corrosion control of MS in nitric acid medium. The experimental results corroborated with results obtained from theoretical molecular dynamics simulation with density functional theory studies.

show abstract

Section: Weight Loss Studiessupporting

confidence: 56%

Section: Electrochemical Polarization (Ep) Studiesmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental and computational approach of an expired antibiotic drug Kynurenic acid as an efficient corrosion inhibitor for mild steel in HNO3 medium

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Inhibitive ability, which is denoted by η % is remarkably increased with the addition of CI leaf extract. It suggests that there is an adsorption of CI leaf extract molecules and the formation of a protective film on the surface of mild steel [35]. In addition to the results, it is found from the literature that if E corr is greater than ± 85 mV / SCE compared to the blank acid solution, the inhibitor may be classified as a cathodic or anodic type whereas, if the E corr value is less than ± mV / SCE, the inhibitor may be classified as a mixed type [36].…”

Section: Potentiodynamic Polarization Measurementsmentioning

confidence: 99%

A Green Approach: Evaluation of Combretum indicum (CI) Leaf Extract as an Eco-friendly Corrosion Inhibitor for Mild Steel in 1M HCl

Neriyana

Alva

2020

Chemistry Africa

View full text Add to dashboard Cite

The anticorrosive activity of Combretum indicum (CI) leaf extract has been examined on mild steel corrosion in 1M HCl by using weight loss and electrochemical measurement techniques. The results of these experimental techniques have consistent in confirming the effect of the CI leaf extract on corrosion inhibition and a mechanism for the inhibition was proposed. The dissolution rate of steel in acidic solution was found to be sensitive to the concentration of CI leaf extract and the corrosion rate reduces when the concentration of CI leaf extract is increased and reaches the high protection efficiency. The potentiodynamic polarization study confirms the mixed mode of inhibition. Ultraviolet-visible (UV) and Fourier-transform infrared (FTIR) spectroscopic techniques were performed to evaluate the phenomenon of adsorption in the plant extract and the functional groups. The surface morphology analysis (SEM) further corroborates the adsorption of inhibitor molecules over the metal surface.

show abstract

“…In contrast, in 4H-pyran, the saturated carbon is in position 4. 4Hpyran was first isolated, prepared and distinguished in 1962 by the pyrolysis of 2acetoxy-3,4-dihydro-2H-pyran [4], and found to be very unstable, particularly in the presence of air, 4H-pyran does not readily match the corresponding dihydropyran and beryllium ion, which readily decomposes in an aqueous medium [5]. Although pyrenes themselves are of little importance in chemistry, many of their derivatives are essential biological molecules [6], such as pyranoflavonoids, and pyranones are also important derivatives, which are natural products, an example of which is coumarin [7].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization of ‎2-amino-pyran ‎and derivatives evaluation of the bacterial, ‎antioxidant and anticancer activity

Hamid

Attia

2022

ijhs

View full text Add to dashboard Cite

Using ethanol as a solvent, heterocyclic hexagonal rings for 2-amino-pyran derivatives (I33-I40) were produced by reacting a mole of chalcones derivatives with a mole of malononitrile. Physical properties such as melting point, colour, and molecular weight and spectroscopic measurements such as the infrared spectrum, [1H-NMR], [13C-NMR] spectrum were used to confirm the accuracy of the prepared compounds' compositions. The biological activity of various produced compounds was investigated in two species of pathogenic bacteria, one of which is Gram-positive, Staphylococcus aureus, and the other, Gram-negative, Escherichia coli. Chemical solutions for the two substances (I25, I32) with concentrations (0,01, 0.001, 0.0001) mg /ml were created using a solvent DMSO and Multer Hinton Agar growth medium. The antibiotic Ciprofloxacin was utilized as a control sample for the diffusion sensitivity test of the bacterial isolates used in the investigation. Using DPPH root and varied concentrations, the impact of chemical (I32) on the elimination of free radicals was also investigated. Breast cancer cells were taken from Baghdad's Medical City and used to test the efficiency of several produced chemicals against them.

show abstract

Performance and computational studies of two soluble pyran derivatives as corrosion inhibitors for mild steel in HCl

Cited by 92 publications

References 51 publications

Experimental and computational approach of an expired antibiotic drug Kynurenic acid as an efficient corrosion inhibitor for mild steel in HNO3 medium

Experimental and computational approach of an expired antibiotic drug Kynurenic acid as an efficient corrosion inhibitor for mild steel in HNO3 medium

A Green Approach: Evaluation of Combretum indicum (CI) Leaf Extract as an Eco-friendly Corrosion Inhibitor for Mild Steel in 1M HCl

Synthesis, characterization of ‎2-amino-pyran ‎and derivatives evaluation of the bacterial, ‎antioxidant and anticancer activity

Contact Info

Product

Resources

About