Corrosion and Inhibition of 316L stainless steel in neutral medium by 2-Mercaptobenzimidazole

Refaey, S.A.M.; Taha, Fouad; El-Malak, A.M. Abd

doi:10.1016/s1452-3981(23)17138-0

Cited by 51 publications

(6 citation statements)

References 15 publications

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“…31 At larger levels of inhibition, the net corrosion response moves from that on the exposed part of the metal surface to that on the covered one, according to an earlier explanation for this phenomenon provided by Riggs and Hurd. 32 A surface film forms because of the chemical adsorption mechanism, which results in unaltered or reduced E a in inhibited solutions compared to the unfettered one, 33,34 as well as the surface area of the metal addressed by inhibitor species improves as temperature rises. Typically, it is considered that the development of an electrostatic adsorption coating is what causes the drop in inhibition efficiency that occurs with temperature rise and the comparable increase in corrosion activation energy when an inhibitor is present.…”

Section: Resultsmentioning

confidence: 99%

Eco-friendly methanolic Ajuga orientalis extract as corrosion inhibitor for aluminium in 1.0 M NaOH

Al-Qudah,

Algethami,

Fodeh

et al. 2024

Corrosion Engineering, Science and Technology: The Internationa

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The inhibitory impact of the methanolic Ajuga orientalis (MAO) extract on Al corrosion in 1.0 M NaOH solution was examined using weight loss with electrochemical polarisation and scanning electron microscopy (SEM) techniques. According to the findings, the extract was an effective inhibitor in basic condition, as well as inhibition effectiveness increased with concentration. Furthermore, temperature studies revealed a loss in efficiency followed by a rise when temperature rose, followed by an increase and a fall in the fundamental media when the temperature increased from 30 °C to 50 °C. Frumkin, Freundlich and El Awady isotherms were used to mimic the inhibitor's adsorption properties. For the inhibitory behaviour, physical and chemical adsorption mechanisms are proposed. The adsorption process's thermodynamic parameters (ΔH*, ΔS* and Ea) were determined and explained. The inhibitor was examined as a mixed-type (anodic and cathodic) inhibitor based on polarisation studies. The inhibitor, according to the SEM data, is partially coating the metal surface, providing it with a reasonable amount of protection. The findings from weight loss, electrochemical polarisation, SEM and quantum chemical calculations collectively demonstrate a strong consensus, indicating that the MAO extract exhibits high effectiveness as an inhibitor for aluminium in a basic solution.

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Section: Resultsmentioning

confidence: 99%

Eco-friendly methanolic Ajuga orientalis extract as corrosion inhibitor for aluminium in 1.0 M NaOH

Al-Qudah,

Algethami,

Fodeh

et al. 2024

Corrosion Engineering, Science and Technology: The Internationa

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show abstract

“…Polarization and ionization factors of inhibitors also reveals mode of adsorption on MS [37]. By fitting degree of surface coverage (θ) and inhibitor concentration, the best adsorption isotherm obtained graphically, was Langmuir isotherm model in 0.5 M H 2 SO 4 on MS and this adsorption isotherm was employed for determining adsorption thermodynamic parameters.…”

Section: Mode Of Adsorptionmentioning

confidence: 99%

Corrosion Inhibition Behaviour and Adsorption Characteristics of Dapsone Derivatives on Mild Steel in Acid Medium

Chakravarthy

Mohana

Kumar³

et al. 2015

ACSJ

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Two newly synthesized Dapsone derivatives viz., 3-[(4-{4-[(1H-Indol-3-ylmethylene)-amino]-benzenesulfonyl}-phenylimino)-methyl]-1H-indole (IABPI) and 5-[(4-{4-[(Thiophen-2-ylmethylene)amino]-benzenesulfonyl}-phenylimino)-methyl]-thiophene (TABPT) were investigated as corrosion inhibitors for mild steel in 0.5 M H 2 SO 4 media by using chemical and electrochemical techniques. Potentiodynamic polarization studies indicated that these two inhibitors behaved as mixed type. These inhibitors were found to obey Langmuir isotherm model. Using this isotherm, thermodynamic adsorption parameters were evaluated. EIS studies showed that the polarization resistance (R P ) and double layer capacitance (C dl ) of the inhibitors are concentration dependent. FTIR technique was used to identify the interaction of inhibitor with mild steel surface, whereas persistency of thin protective film of inhibitors on the mild steel surface was carried out by using EDX and SEM.

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“…2-mercaptobenzimidazole (2-MBI), with the chemical formula C7H6N2S, is often used as a corrosion inhibitor to protect metals such as copper, copper alloys, zinc, stainless steels, and aluminium alloys [21][22][23][24][25][26][27][28][29][30][31]. The 2-MBI molecule consists of a benzene ring (C6H4) bonded to two nitrogen atoms, forming another cycle with a carbon atom attached between them.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Bonding and Corrosion Inhibition of 2-Mercaptobenzimidazole Organic Films Formed on Copper Surfaces Under Electrochemical Control in Acidic Chloride Solution

Garg,

Zanna,

Seyeux

et al. 2024

Preprint

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Corrosion and Inhibition of 316L stainless steel in neutral medium by 2-Mercaptobenzimidazole

Cited by 51 publications

References 15 publications

Eco-friendly methanolic Ajuga orientalis extract as corrosion inhibitor for aluminium in 1.0 M NaOH

Eco-friendly methanolic Ajuga orientalis extract as corrosion inhibitor for aluminium in 1.0 M NaOH

Corrosion Inhibition Behaviour and Adsorption Characteristics of Dapsone Derivatives on Mild Steel in Acid Medium

Interfacial Bonding and Corrosion Inhibition of 2-Mercaptobenzimidazole Organic Films Formed on Copper Surfaces Under Electrochemical Control in Acidic Chloride Solution

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