Synthesis, characterization, and evaluation of xanthene derivative as highly effective, nontoxic corrosion inhibitor for mild steel immersed in 1 M HCl solution

“…49 However, the A parameter has a negative value, which implies the presence of a repulsive interaction. 50 According to the literature, the electrostatic interaction (physical adsorption) occurs at the charged metal/solution interface when DG ads is around À20 kJ. mol À1 .…”

Section: Isotherm and Adsorption Parametermentioning

confidence: 99%

Thiophene derivatives as corrosion inhibitors for 2024-T3 aluminum alloy in hydrochloric acid medium

et al. 2022

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“…In the present investigation, the Nyquist plots of EO and DE (Figures 5 and 6) showed a single capacitive loop whose size increases with increased concentrations of both aqueous extracts employed (23,24). However, these capacitive loops are not the perfect semicircles because of a frequent dispersion effect attributing to roughness because of heterogeneous solid surface (25)(26)(27). In addition, the diameter of the Nyquist plots increases as a function of the concentration of each inhibitor, which affirms the adsorption of the EO and DE molecules on the MS surface.…”

Section: Eis Investigationmentioning

confidence: 50%

Aqueous extracts of Aaronsohnia pubescens subsp. pubescens aerial parts as Green Corrosion Inhibitor for Mild Steel in hydrochloric acid solution

Manssouri¹,

Ouadi

Chraka

et al. 2021

Journal of the Turkish Chemical Society Section A: Chemistry

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In this study, two aqueous extracts from the aerial parts of Aaronsohnia pubescens subsp. pubescens (Odorized aqueous extract (OE) and Deodorized aqueous extract (DE)) were used as some novel ecological corrosion inhibitors for mild steel (MS) in 1 M HCl medium. For this reason, the inhibition behavior of the OE and DE were investigated using weight loss measurements, electrochemical assays, kinetics, and thermodynamic parameters, and electrochemical methods, both stationary (Potentiodynamic polarization (PDP)) and transient (Electrochemical impedance spectroscopy (EIS)). The obtained results showed that EO and DE act as effective corrosion inhibitors and the inhibition efficiency of inhibitors increases for the concentration of 1.5 g/L; reaching some high values of 93.11 and 87.88% in 1 M HCl solution at 308 K for OE and DE, respectively. Furthermore, PDP measurements exhibited that the studied of each inhibitor performs as a mixed-type inhibitor. The results of the thermodynamic kinetic parameters indicate the adsorption of OE and DE on the MS surface sites obeying the Langmuir adsorption isotherm.

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“…This tendency may be explained by the roughness of the steel rebar surface produced by the higher temperature and also a transform in the adsorption/desorption equilibrium forward into desorption of the SYCE extract from the steel rebar interface. 35 …”

Section: Resultsmentioning

confidence: 99%

Inhibitory Capabilities of Sweet Yellow Capsicum Extract toward the Rusting of Steel Rebars in Cement Pore Solution

Deyab

Mohsen

2023

ACS Omega

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The inhibitory capabilities of the sweet yellow capsicum extract (SYCE) toward the rusting of steel rebars in cement pore solution (CPS) were tested employing the electrochemical and mass loss methods. Gallic acid, caffeic acid, p-coumaric acid, ferulic acid, luteolin, and cinnamic acid are the most important constituents in the SYCE extract. By adsorbing them on steel bars, the organic compounds in the CSA extract enable them with an effective mixed-type inhibition, suppressing both anodic and cathodic procedures. At 300 ppm, the highest performances were 95.3 and 97.5% utilizing mass loss and electrochemical approaches, respectively. The activation energy for the corrosion process is greatly increased by the addition of the SYCE extract, going from 13.2 kJ mol −1 (blank solution) to 30.0 kJ mol −1 (300 ppm SYCE extract). The physical adsorption actions of the SYCE extract are described by the Freundlich equilibrium constant's smallest value, which is 0.074 ppm −1 . Many future investigators will be attracted by these discoveries to work relentlessly to uncover the anticorrosion characteristics of novel plant extracts in the area of concrete additives.

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Synthesis, characterization, and evaluation of xanthene derivative as highly effective, nontoxic corrosion inhibitor for mild steel immersed in 1 M HCl solution

Cited by 44 publications

References 34 publications

Thiophene derivatives as corrosion inhibitors for 2024-T3 aluminum alloy in hydrochloric acid medium

Thiophene derivatives as corrosion inhibitors for 2024-T3 aluminum alloy in hydrochloric acid medium

Aqueous extracts of Aaronsohnia pubescens subsp. pubescens aerial parts as Green Corrosion Inhibitor for Mild Steel in hydrochloric acid solution

Inhibitory Capabilities of Sweet Yellow Capsicum Extract toward the Rusting of Steel Rebars in Cement Pore Solution

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