Electrochemical investigation of Irbesartan drug molecules as an inhibitor of mild steel corrosion in 1 M HCl and 0.5 M H 2 SO 4 solutions

Srivastava, Monika; Tiwari, Preeti; Srivastava, Sanjay; Prakash, Rajiv; Ji, Gopal

doi:10.1016/j.molliq.2017.04.017

Cited by 105 publications

(27 citation statements)

References 55 publications

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“…However, at TOE concentration higher than 200 mg L −1 , the decrease tends to stabilize. Similar behavior was observed for corrosion inhibition using berberine extracted from Coptis chinensis 56 , berberine dye 57 , spices extract (curcuma, safran) 17 , acacia leaves (Acacia cyanophylla) extract 58 , irbesartan 43 . In the case of coffee husk extract the variations in the CPE were much less marked 48 .…”

Section: Toe Concentration (Mg Lsupporting

confidence: 68%

“…The activation energy increases with the presence of TOE: from 7.34 kJ mol −1 to 20.16 kJ mol −1 . High activation energy is necessary for retarding the corrosion of carbon steel in the presence of TOE 43 . The adsorption of TOE at the surface of samples leads to an increase of the double layer thickness, which in turn, increases the energy barrier required for initiating the corrosion process 44 .…”

Section: Toe Concentration (Mg Lmentioning

confidence: 99%

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Enhancement of corrosion resistance of the cooling systems in desalination plants by green inhibitor

Deyab

Guibal²

2020

Sci Rep

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Taraxacum officinale extract (toe) has been tested for preventing the corrosion of cooling systems in desalination plants. The inhibition of corrosion effects has been characterized by chemical and electrochemical methods (Mass loss, potentiodynamic polarization and electrochemical impedance spectroscopy) and surface observations. tests on cooling systems were carried out in seawater environment. the presence of toe in the re-circulation loop decreases the corrosion of carbon steel by adsorption of toe compounds on the surface of metal pipes. the optimum toe concentration was reached at 400 mg L −1 and the inhibition efficiency was higher than 94%. TOE allowed increasing the energy barrier of the corrosion process. SEM, FT-IR and UV spectra observations confirmed that TOE prevents corrosion attacks at the surface of the pipes. HPLC analyses identified the presence of saccharides, organic acids, phenol antioxidant and caffeic acid derivatives in TOE, which may be the active promoters of corrosion inhibition. www.nature.com/scientificreports www.nature.com/scientificreports/ R ct cto ct where R ct and R cto are the charge transfer resistances in the presence and absence of TOE, respectively. Compound Concentration (mg L −1 )

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Section: Toe Concentration (Mg Lsupporting

confidence: 68%

Section: Toe Concentration (Mg Lmentioning

confidence: 99%

Enhancement of corrosion resistance of the cooling systems in desalination plants by green inhibitor

Deyab

Guibal²

2020

Sci Rep

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“…The inhibition efficiency (μ wl %) and surface coverage (θ) values were measured using the following formulae 5 where W 0 and W i are the weight loss value in the absence and presence of inhibitor, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…The electron affinity ( A ) and ionization potential ( I ) were denoted as − E LUMO and − E HOMO , respectively. The other electronic parameters like absolute hardness (η), softness (σ), fraction of electron transfer (Δ N ), and absolute electronegativity (χ) were estimated by the following expressions 5 …”

Section: Methodsmentioning

confidence: 99%

“… 1 − 3 The organic moieties have potential to produce an adhesive layer on metallic surface owing to their increased rate of physisorption as well as chemisorption characteristics. 4 , 5 The green inhibitors obtained from plant extracts were utilized to inhibit the metallic corrosion under acid environment. 6 − 10 Therefore, the plant-based inhibitors were treated as possible replacements of synthetic products.…”

Section: Introductionmentioning

confidence: 99%

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Application of Unsaturated Fatty Acid Molecules Derived from Microalgae toward Mild Steel Corrosion Inhibition in HCl Solution: A Novel Approach for Metal–Inhibitor Association

et al. 2018

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Fatty acid molecules 9,12,15-octadecatrienoic acid (C18:3), 9,12-octadecadienoic acid (C18:2), and hexadecanoic acid (C16:0) possessing active functional groups with the capability of fast electron transfer have been established for effective corrosion inhibition of mild steel. In this regard, a microalga Scenedesmus sp. is isolated and its fatty acids have been studied to corroborate the adsorption behavior, attributing the anticorrosion efficacy on mild steel in 1 M HCl solution by forming metal–inhibitor framework. Electrochemical analysis has been used to ascertain the surpassing corrosion inhibition efficiency at an optimal concentration of 36 ppm with maximum 95.1% inhibitive performance. The results of metallography with or without the inhibitor molecules have indicated significant changes in surface morphology of mild steel specimen for gradual enhancement in immersion time (72 h). Hydrogen evolution reaction has been emphasized to observe the tendency of significant decrease in the bubble formation in the presence of inhibitor compared to 1 M HCl solution only. Surface morphometric studies (scanning electron microscopy and atomic force microscopy) have also revealed the excellent adsorption capacity of Scenedesmus fatty acids on metal surface. Quantum chemical calculations, performed by density functional theory, determined significant adsorption effectiveness, based on the donor–acceptor capability between metallic surface and inhibitor molecules.

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Chemical Medicines as Corrosion Inhibitors

Albayati

Lgaz

Chaouiki

et al. 2021

Organic Corrosion Inhibitors

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Electrochemical investigation of Irbesartan drug molecules as an inhibitor of mild steel corrosion in 1 M HCl and 0.5 M H 2 SO 4 solutions

Cited by 105 publications

References 55 publications

Enhancement of corrosion resistance of the cooling systems in desalination plants by green inhibitor

Enhancement of corrosion resistance of the cooling systems in desalination plants by green inhibitor

Application of Unsaturated Fatty Acid Molecules Derived from Microalgae toward Mild Steel Corrosion Inhibition in HCl Solution: A Novel Approach for Metal–Inhibitor Association

Chemical Medicines as Corrosion Inhibitors

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