Theoretical and surface/electrochemical investigations of walnut fruit green husk extract as effective inhibitor for mild-steel corrosion in 1M HCl electrolyte

Shahmoradi, Ali; Ranjbarghanei, M.; Javidparvar, Ali Asghar; Guo, Lei; Berdimurodov, Elyor; Ramezanzadeh, Bahram

doi:10.1016/j.molliq.2021.116550

Cited by 143 publications

(29 citation statements)

References 51 publications

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“…The height at 2,944 cm -1 and 2,832 cm -1 indicates C-H stretching vibrations are related to methylene groups CH 2 alkane compounds [45]. The peak at 1,656 cm -1 suggests C=O stretching vibrations, based on the wavenumbers correlation 1,650-1,800 cm -1 .…”

Section: Discussion Of Saga As a Green Corrosion Inhibitormentioning

confidence: 93%

Development of saga (Abrus precatorius) seed extract as a green corrosion inhibitor in API 5l Grade B under 1m HCL solutions

Riastuti

Soedarsono

Aribowo

et al. 2022

EEJET

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The critical role of newly green corrosion inhibitors shows the disruption of cathodic and anodic reactions at the metals and solution interface. The object of this study is the development of Saga as a corrosion inhibitor to mitigate the effect of corrosive HCl 1M оn mild steel. The inhibitor was extracted using methanol to prepare various concentrations. Fourier transform infrared (FTIR) spectroscopy was used to determine the functional group of the inhibitor. The electrochemical impedance spectroscopy aided by the potentiodynamic polarization was utilized to evaluate the inhibitor’s effectiveness. Optical emission spectroscopy (OES) was implemented to determine the percentage of elements in mild steel. Based on the FTIR results, C=O, -OH, C=C, benzene, and C-O are accountable for the inhibitor to donate its lone pair of an electron to the 3-d orbital of iron metal. Increasing the inhibitor concentration decreases the capacitive double layer to elevate the inhibitor resistance. The higher inhibitor resistance of 29.33 Ω cm-1 increases as the concentration increases due to the depression of Cdl 420.16 µF cm2 at 10 ml inhibitor solution. Parallelly, it increases the inhibition efficiency at 65.58 %, slightly lower than the PP measurement of nearly 88 %. The higher value of adsorption/desorption constant, Kads, at 2.9 L mol-1 shows the strength of the inhibitor, which lowers the value of Gibbs free energy (ΔGads). The Saga inhibitor is considered a chemisorption inhibitor ΔGads –36.87 kJ/mol. The value demonstrates the formation of dative covalent bonding, which promotes the transferred electron from the inhibitor to the substrate. On the other hand, the Saga inhibitor abides by the Langmuir adsorption isotherm as the R2 value is 0.99.

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Section: Discussion Of Saga As a Green Corrosion Inhibitormentioning

confidence: 93%

Development of saga (Abrus precatorius) seed extract as a green corrosion inhibitor in API 5l Grade B under 1m HCL solutions

Riastuti

Soedarsono

Aribowo

et al. 2022

EEJET

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show abstract

“…In this table, the terms R s , CPE dl , Y 0 , and n connote the electrolyte resistance, constant phase element, admittance, and power of the CPE, respectively. Furthermore, R p stands for polarization resistance, calculated by adding the charge transfer and film resistance ( R p = R ct + R f ) 19 . As demonstrated in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Plant extracts, comprising leaf 15 , fruit 16 , and seed 17 extracts, are generally biocompatible, biodegradable, and cost-effective. Also, donor electron components such as aromatic groups, heteroatoms, and compounds with π electrons in plant extract can further confirm their potential to be used as potent corrosion inhibitors [18][19][20][21] .Many efforts have shown the role of different plant extracts in the protection of MS surfaces in acidic media. Mostafatabar et al evaluated the inhibitory effect of carrot pomace extract.…”

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confidence: 89%

Falcaria vulgaris leaves extract as an eco-friendly corrosion inhibitor for mild steel in hydrochloric acid media

Alimohammadi

Ghaderi

Ramazani

et al. 2023

Sci Rep

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Undoubtedly, metal corrosion is one of the most challenging problems faced by industries. Introducing corrosion inhibitors is a reasonable approach to protecting the metal surface. Due to environmental concerns and the toxicity of industrial organic corrosion inhibitors, researchers are continually exploring acceptable replacements. The current study focused on the application of Falcaria Vulgaris (FV) leaves extract to mitigate mild steel (MS) corrosion in a 1 M HCl environment. The polarization findings demonstrated that the corrosion current density decreased from 264.0 µA/cm2 (for the sample submerged in the blank solution) to 20.4 µA/cm2 when the optimal concentration of 800 ppm of FV leaves extract was added to the acid solution. Electrochemical impedance spectroscopy (EIS) analysis revealed an inhibition efficiency of 91.3% at this concentration after 6 h of immersion. It was determined by analyzing several adsorption isotherms that this corrosion inhibitor obeys the Frumkin isotherm. AFM, FE-SEM, and GIXRD surface analyses also supported the findings that adding FV leaves extract can reduce metal damage by adsorption on the metal surface.

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“…The anti-corrosion abilities of the SYCE extract operate by producing an adsorbed layer on the steel surface . Their effect on the steel surface is based on physical adsorption, which involves the creation of a barrier layer that eliminates water or corrosive ions out from surface . The inhibitory activity of the tested SYCE extract was driven by the connection of aromatic ring electrons and p-electrons of OH groups with unoccupied d-orbitals of steel, via which they created an adherent, solid, and homogeneous thin layer on the steel surface.…”

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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Theoretical and surface/electrochemical investigations of walnut fruit green husk extract as effective inhibitor for mild-steel corrosion in 1M HCl electrolyte

Cited by 143 publications

References 51 publications

Development of saga (Abrus precatorius) seed extract as a green corrosion inhibitor in API 5l Grade B under 1m HCL solutions

Development of saga (Abrus precatorius) seed extract as a green corrosion inhibitor in API 5l Grade B under 1m HCL solutions

Falcaria vulgaris leaves extract as an eco-friendly corrosion inhibitor for mild steel in hydrochloric acid media

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

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