Adsorption and corrosion inhibition performance of multi-phytoconstituents from Dioscorea septemloba on carbon steel in acidic media: Characterization, experimental and theoretical studies

Emori, Wilfred; Zhang, Runhua; Okafor, Peter C.; Zheng, Xiaofeng; He, Tao; Wei, Kun; Lin, Xiuzhou; Cheng, Chun‐Ru

doi:10.1016/j.colsurfa.2020.124534

Cited by 80 publications

(18 citation statements)

References 75 publications

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“…Sweet potato tuber (PMS) [46] extract, obtained with solvent n-hexane has been reported to effectively inhibit the corrosion of mild steel in 1M HCl and the maximum efficiency of 64.26% was obtained at a maximum concentration of 0.7 g/L. Furthermore, Dioscorea septemloba [47] extracts with 2 g/L concentration also showed 72.1% inhibition efficiency according to the EIS tests on carbon steel in 1M HCl. In this work, aqueous CI leaf extract showed better inhibition from the literature value.…”

Section: Comparison Of Inhibition Efficiencymentioning

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

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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.

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Section: Comparison Of Inhibition Efficiencymentioning

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

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“…7g), the radius of capacitive arc of the β-HA inhibitor is obviously larger than that of MHB or PE alone. This indicates that the corrosion inhibition performance of β-HA is better than that of MHB and PE alone [38][39][40].…”

Section: Electrochemical Impedance Spectroscopy Measurementsmentioning

confidence: 95%

Performance Evaluation of a Novel and Effective Water-Soluble Aldehydes as Corrosion Inhibitor for Carbon Steel in Aggressive Hydrochloric Medium

Wang¹,

Wang²,

Wang³

et al. 2022

Journal of Renewable Materials

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A novel and effective water-soluble aldehydes (β-HA) as corrosion inhibitor was synthesized for N80 steel corrosion in 15% HCl solution, and the corrosion inhibition performance was evaluated by using weight loss, electrochemical measurements, scanning electron microscope (SEM), quantum chemical calculation and molecular dynamics simulation (MDS). The results show that synthesized β-HA showed excellent corrosion performance compared with MHB and PE for carbon steel in 15% HCl solution compared with MHB and PE, and the inhibition efficiency increased with increasing concentration of the inhibitor. The inhibition efficiency of β-HA at 8 mmol/L reached the maximum value 94.08%. The inhibitor acted as mixed-type inhibitor via blocking both the anodic and cathodic reaction. The adsorption of inhibitors on N80 steel surface obeyed Langmuir adsorption isotherm, and the process contained chemisorption and physisorption. The ΔG ads of β-HA was −28.81 kJ•mol −1 under the standard atmospheric pressure. Moreover, the theoretical calculation parameters revealed stronger combination and higher interaction energy for inhibitor β-HA comparing with MHB and PE, further demonstrating the correlation between the theoretical and experimental results.

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“…It also makes it possible to explain the chemical or electrochemical processes developing through the films. In this study of corrosion inhibition of carbon steel in 1 M HCL acid media at 298 K, the impedance of the Nyquist and Bode diagrams is presented in Figures 8(a Figure 8(a) shows the equivalent circuit, rather than using capacitors, uses stationary-phase elements (CPE) to provide a variety of heterogeneities suitable for corrosion electrodes, such as deficient polishing, grain boundary, surface contaminants, and surface roughness [62]. We utilized the parameters (n and Y 0 ) of our test to construct a mathematical model since the impedance of carbon steel is frequency dependent.…”

Section: 42mentioning

confidence: 99%

Expired Chicken Egg-White Extract’s Adsorption Behavior As a Corrosion Inhibitor for Carbon Steel in 1M HCl

Elqars

Guennoun

Ouarhach

et al. 2021

Journal of Chemistry

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The inhibitory activity of the expired egg-white carbon steel (CS) extract in HCl solution was studied in this article. The extract was examined using FT-IR, and the surface was examined using a scanning electron microscope (SEM) and energy-dispersive X-ray analysis (EDX). Weight loss techniques at various temperatures were used to examine corrosion investigations (298, 308, 318, and 328 K), concentrations (100, 200, 400, and 800 mg. L−1) of extracts, and electrochemical measurements (potentiodynamic polarization (PDP) and impedance spectroscopy (EIS) at 25°C and different concentrations. Results. Results obtained through EIS demonstrated a maximal inhibition efficiency of 90% at an inhibitor concentration of 800 mg. L−1. Moreover, the findings of the potentiodynamic polarization indicated that egg-white extract was a mixed type of inhibitor and slowed down both cathodic and anodic reactions. For weight loss analysis, an inhibitory potency (89, 83, 77, and 71%) at various temperatures (298, 308, 318, and 328 K) was demonstrated, respectively. It indicates that the temperature rise contributes to a decrease in the resistance of the carbon steel. The adsorption of the expired egg-white extract was spontaneous with physisorption and chemisorption according to the Langmuir isotherm model, according to adsorption isotherm studies.

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Adsorption and corrosion inhibition performance of multi-phytoconstituents from Dioscorea septemloba on carbon steel in acidic media: Characterization, experimental and theoretical studies

Cited by 80 publications

References 75 publications

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

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

Performance Evaluation of a Novel and Effective Water-Soluble Aldehydes as Corrosion Inhibitor for Carbon Steel in Aggressive Hydrochloric Medium

Expired Chicken Egg-White Extract’s Adsorption Behavior As a Corrosion Inhibitor for Carbon Steel in 1M HCl

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