4-Hydroxyl-N′-[(3-Hydroxy-4-Methoxyphenyl) Methylidene] Benzohydrazide] as Corrosion Inhibitor for Carbon Steel in Dilute H2SO4

Poojary, Nikshith G.; Kumari, Preethi; Rao, Suma

doi:10.1007/s11668-021-01166-y

Cited by 7 publications

(2 citation statements)

References 23 publications

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“…While 2,944 cm -1 and 2,832 cm -1 show -CH 3 or -CH 2 groups stretch vibration. The weak peak of 1,656-1,800 cm -1 relates to the stretching C=O, similar to the publication [31]. The twin peaks at 1499.11 and 1415.18 cm -1 correlate to COO vibrations [32].…”

Section: Identification Of the Primary Compounds Of Inhibitor Adsorpt...supporting

confidence: 78%

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: Identification Of the Primary Compounds Of Inhibitor Adsorpt...supporting

confidence: 78%

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

“…The best association was found for Langmuir's isotherm and is given in Eq. (15) [ 41 ]. Kinetic-thermodynamic and Flory-Huggins models were also fitted into PDP results and the corresponding plots are given under Supplementary Fig.…”

Section: Discussion On Resultsmentioning

confidence: 99%

New benzisoxazole derivative: A potential corrosion inhibitor for mild steel in 0.5 M hydrochloric acid medium -insights from electrochemical and density functional theory studies

Mishma

et al. 2023

Heliyon

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Grape Seed Extract as an Environment-Friendly Green Inhibitor for Corrosion of Mild Steel in 1 M Sulfamic Acid

Kaushik,

Rao,

Kedimar

et al. 2024

J. of Materi Eng and Perform

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A corrosion inhibition study of mild steel in 1 M sulfamic acid was conducted using grape seed extract (GSE) as a possible green inhibitor. Electrochemical techniques were adopted to measure the corrosion rate in both the absence and presence of the GSE. Conditions were standardized to obtain optimum inhibition efficiency by varying the concentration of inhibitor and temperature. The kinetic parameters were calculated using the Arrhenius equation. Surface analysis was conducted by scanning electron microscope (SEM) and atomic force microscope (AFM) techniques. A suitable mechanism was proposed for the corrosion inhibition process. Grape seed extract showed a maximum efficiency of 65%, with a concentration of 0.24 g/L at 303 K from potentiodynamic polarization (PDP) studies. With the increase in temperature, the efficiency decreased, resulting in the GSE inhibitor’s physical adsorption. Surface morphology studies supported the adsorption of GSE on mild steel. GSE acted as an efficient green inhibitor with environmental benefits.

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4-Hydroxyl-N′-[(3-Hydroxy-4-Methoxyphenyl) Methylidene] Benzohydrazide] as Corrosion Inhibitor for Carbon Steel in Dilute H2SO4

Cited by 7 publications

References 23 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

New benzisoxazole derivative: A potential corrosion inhibitor for mild steel in 0.5 M hydrochloric acid medium -insights from electrochemical and density functional theory studies

Grape Seed Extract as an Environment-Friendly Green Inhibitor for Corrosion of Mild Steel in 1 M Sulfamic Acid

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