Inhibition behaviour of mild steel by three new benzaldehyde thiosemicarbazone derivatives in 0.5 M H<sub>2</sub>SO<sub>4</sub>: experimental and computational study

Honghong, Zhang; Cheng-kuan, Qin; Chen, Yu; Zhang, Zhao

doi:10.1098/rsos.190192

Cited by 24 publications

(13 citation statements)

References 69 publications

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“…R t is the charge transfer resistor. C dl is the double layer capacity at the electrolyte/iron interface at the bottom of the pores [ 35 , 36 ] ( Figure 5 b).…”

Section: Resultsmentioning

confidence: 99%

Corrosion inhibiting effect of a green formulation based on Opuntia Dillenii seed oil for iron in acid rain solution

Rehioui

Abbout

Benzidia

et al. 2021

Heliyon

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This study examines the development of a new green and eco-friendly formulation derived from Opuntia dillenii seed oil (labeled as FOD) and its application as a corrosion inhibitor to protect iron which is subject to corrosion phenomena that become important especially in acidic environments as acid rain. Physicochemical properties and fatty acid analysis of Opuntia dillenii seed oil were performed and they demonstrated that the oil is a major source of unsaturated fatty acids, in particular linoleic acid, with a percentage of 73.388%. Corrosion inhibition effect of FOD was studied by gravimetric methods, electrochemical measurements, and scanning electron microscopy coupled with elemental analysis (SEM/EDX). Obtained results confirmed that FOD behaves as a good mixed corrosion inhibitor with predominant anodic activity. Inhibition efficiency of FOD is more important when the concentration of FOD and the immersion time increase, reaching values up to 99%. FOD forms a barrier layer on the surface of the iron, and thereby minimizes the contact area between the metal surface and the corrosive solution. The adsorption behavior of FOD on iron surface obeys Langmuir adsorption isotherm with chemisorption and physisorption mechanism.

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“…R t is the charge transfer resistor. C dl is the double layer capacity at the electrolyte/iron interface at the bottom of the pores [ 35 , 36 ] ( Figure 5 b).…”

Section: Resultsmentioning

confidence: 99%

Corrosion inhibiting effect of a green formulation based on Opuntia Dillenii seed oil for iron in acid rain solution

Rehioui

Abbout

Benzidia

et al. 2021

Heliyon

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“…Figure 14 yields a straight line (y = 0.90187 C + 0.07996 for Cu-SEBS and y = 0.90126 C + 0.05494 for Cu-SEBS-CB). K ads , the adsorption-desorption equilibrium constant for the SEBS and SEBS-CB was determined from the intercept of the straight line ChemistrySelect obtained in Langmuir adsorption isotherm (Figure 14), representing as follows to the Equation ( 21): [60] C…”

Section: Adsorption Isotherms Modeling Mechanismmentioning

confidence: 99%

“…The value of K ads (12506.253 g À 1 L for Cu-SEBS and 17262.213 g À 1 L for Cu-SEBS-CB), is related to the standard free energy of adsorption (DG 0 ads ). It may characterize the interaction of adsorption molecules and metal surface, according to the Equation ( 22) [60] :…”

Section: Adsorption Isotherms Modeling Mechanismmentioning

confidence: 99%

Corrosion Protection Evaluation of Copper Coated with a Block Copolymer and Block Coploymer/Carbon Black Nanoparticles in 3 wt% NaCl Solution

Masmoudi

Jedidi²,

Amor

et al. 2023

ChemistrySelect

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This paper presents a successful preparation of SEBS (a copolymer polystyrene‐block‐poly (ethylene‐ran‐butylene)‐block‐polystyrene) and SEBS‐CB (SEBS‐Carbon Black nanoparticles) coatings on a copper surface following a well‐defined immersion protocol. Such coatings′ protection capacity was tested in a 3 wt% NaCl medium using potentiodynamic polarization, cyclic voltammetry (CV), and electrochemical impedance techniques (EIS). The electrochemical measurements indicate that SEBS and SEBS‐CB are cathodic‐type inhibitors mainly hindering the diffusion of oxygen molecules toward the copper substrate. It also indicates the decrease in chloride ion attack on the coated copper layer. Not only that, but it also affirms the decrease in CuCl2- ${{{\rm \ }{\rm C}{\rm u}{\rm C}{\rm l}}_{2}^{-}}$ ‘s transport to the bulk solution, resulting in our sample being further protected at more positive potential. Cu‐SEBS‐CB electrodes showed a slight improvement in corrosion protection compared to Cu‐SEBS electrodes. π‐π stacking was associated with improving the performance of these coatings. The keys functions of incorporating CB are improving the electrode conductivity and having a denser and more compact coating than that without CB. The order of inhibition efficiency obtained by potentiodynamic polarization is in good agreement with the results achieved by electrochemical impedance spectroscopy. Also, the inhibition efficiency of Cu‐SEBS and Cu‐SEBS‐CB increases with increasing the ratio of SEBS. Adsorption of SEBS and SEBS‐CB on copper surface follows the Langmuir isotherm.

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“…More so, smaller value of global hardness and higher value of global softness suggest higher inhibition efficacy according to the principle of hard-soft acid base (HSAB) [57], and this result favors the better inhibition performance of HBPA. Again, B-HBPA shows a higher value of dipole moment (μ), which is believed to favor the accumulation of inhibitor on the steel surface [58].…”

Section: Surface Morphologymentioning

confidence: 99%

Anticorrosion activity of two new pyridine derivatives in protecting X70 pipeline steel in oil well acidizing fluid: experimental and quantum chemical studies

et al. 2021

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The effectiveness of two new pyridine derivatives, namely N-(2-hydroxybenzylidene) pyridine-4-amine (HBPA) and N-(5-bromo-2-hydroxybenzylidene) pyridine-4-amine (B-HBPA) as corrosion inhibitors for X70 steel in 2 M HCl solution was examined using weight loss, electrochemical and quantum chemical calculations. The results from the experimental studies indicate that the two pyridine derivatives inhibited X70 steel corrosion in the acid environment with HBPA displaying superiority in the inhibition performance. The inhibition efficiency from the polarization studies gave 96 and 92% for HBPA and B-HBPA, respectively; it also indicated that HBPA and B-HBPA behaved as a mixed-type inhibitor with predominant cathodic effect with HBPA inhibitor. Data from electrochemical impedance gave efficiency of 95 and 94% for HBPA and B-HBPA, respectively, at maximum inhibitor concentrations. The inhibitors adsorption on X70 steel surface obeyed Langmuir adsorption isotherm. The inhibitive effect of the studied inhibitors was confirmed by scanning electron microscopy (SEM) analysis. Quantum chemical calculations studied via density functional theory (DFT) provided additional support for better understanding of the mechanism of corrosion inhibition displayed by the studied pyridine derivatives.

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Inhibition behaviour of mild steel by three new benzaldehyde thiosemicarbazone derivatives in 0.5 M H₂SO₄: experimental and computational study

Cited by 24 publications

References 69 publications

Corrosion inhibiting effect of a green formulation based on Opuntia Dillenii seed oil for iron in acid rain solution

Corrosion inhibiting effect of a green formulation based on Opuntia Dillenii seed oil for iron in acid rain solution

Corrosion Protection Evaluation of Copper Coated with a Block Copolymer and Block Coploymer/Carbon Black Nanoparticles in 3 wt% NaCl Solution

Anticorrosion activity of two new pyridine derivatives in protecting X70 pipeline steel in oil well acidizing fluid: experimental and quantum chemical studies

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Inhibition behaviour of mild steel by three new benzaldehyde thiosemicarbazone derivatives in 0.5 M H2SO4: experimental and computational study

Cited by 24 publications

References 69 publications

Corrosion inhibiting effect of a green formulation based on Opuntia Dillenii seed oil for iron in acid rain solution

Corrosion inhibiting effect of a green formulation based on Opuntia Dillenii seed oil for iron in acid rain solution

Corrosion Protection Evaluation of Copper Coated with a Block Copolymer and Block Coploymer/Carbon Black Nanoparticles in 3 wt% NaCl Solution

Anticorrosion activity of two new pyridine derivatives in protecting X70 pipeline steel in oil well acidizing fluid: experimental and quantum chemical studies

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Inhibition behaviour of mild steel by three new benzaldehyde thiosemicarbazone derivatives in 0.5 M H₂SO₄: experimental and computational study