Inhibition Performance and Adsorption Behavior of Spinacia Oleracea Leaves Extracts on Mild Steel Corrosion in Hydrochloric Acid Medium

Shivakumar, S. S.; Mohana, K. N.; Gurudatt, Doddahosuru Mahadevappa

doi:10.7598/cst2013.302

Cited by 9 publications

(11 citation statements)

References 32 publications

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“…It was shown that the rate of steel corrosion increased with temperature for a particular OPE and OPE-CuO NPs concentration. Additionally, the outcomes obtained showed that the investigated OPE had an inhibitory effect at the evaluated temperatures, and that the extract inhibitor's efficiency was temperature-dependent, and that the percentage decreased as the temperature increased due to physisorption [53][54][55].…”

Section: Figure 6 the Variation Of η%Of Ope-cuo Nps On Carbon Steel W...mentioning

confidence: 97%

Onion Peel Extract/Copper Oxide Nanoparticles as Corrosion Inhibitors for Carbon Steel in Hydrochloric Acid; Extraction, Characterization, Electrochemical Study, and Theoretical Explorations

Darweesh,

Emam,

Wahba

et al. 2024

Preprint

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The effectiveness of onion peel extract, (OPE), for carbon steel in one molar (1 M) hydrochloric acid solution was illustrated utilizing weight loss (WL) techniques, potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), and surface morphological examination. Also, this process was characterized using Fourier transform infrared (FT-IR), energy dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), atomic force microscopy (AFM), and scanning electron microscope (SEM). The protective efficiency rises as OPE concentration rises and decreases with corrosive solution temperature, according to weight loss measurements. Polarization curves display that OPE behaves as a mixed-type inhibitor in hydrochloric acid. The adsorption process mechanism is supported by EIS, which demonstrates that charge-transfer resistance rises, and double-layer capacitance falls with inhibitor concentration. OPE adhering to carbon steel follows the Langmuir isotherm, through a physical adsorption process and the inhibitor molecules were shown to have spontaneously adsorbed onto the carbon steel based on the negative values of Gibb's free energy of adsorption. The synergistic effect of copper oxide nanoparticles, CuO-NPs in combination with OPE on the inhibition corrosion of carbon steel was evaluated. The results showed that the inhibition efficiency of OPE increases in the presence of CuO-NPs due to synergistic interactions of OPE extract molecules with CuO-NPs. The electron-donating capacity of the chemical component of the OPE has been shown in theoretical studies employing quantum chemistry methods.

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Section: Figure 6 the Variation Of η%Of Ope-cuo Nps On Carbon Steel W...mentioning

confidence: 97%

Onion Peel Extract/Copper Oxide Nanoparticles as Corrosion Inhibitors for Carbon Steel in Hydrochloric Acid; Extraction, Characterization, Electrochemical Study, and Theoretical Explorations

Darweesh,

Emam,

Wahba

et al. 2024

Preprint

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“…Above 1200 ppm, the corrosion rate approximately remained constant. The constant rate obtained could be attributed to the competitive adsorption effect between inhibitor molecules and the metal surface which is already covered with initial layers of molecules [22]. The % IE at different concentrations of AA extracts decreases with increasing temperature from 303 K to 333 K ( Figure 1).…”

Section: Mass Loss Studiesmentioning

confidence: 98%

The Effect ofAchyranthes asperaExtracts on Mild Steel Corrosion in Industrial Water Medium

Kumar

Mohana

2013

ISRN Corrosion

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Achyranthes aspera (AA) extracts were studied as corrosion inhibitor for mild steel (MS) in industrial water medium using mass loss and electrochemical techniques. The results of the study revealed that AA extracts inhibit MS corrosion through adsorption process following Langmuir adsorption isotherm model. The protection efficiency increased with increase in inhibitor concentration and decreased with temperature. The electrochemical impedance spectroscopy (EIS) measurements showed that the charge transfer resistance increases with increase in the concentration of AA extracts. The polarization curves obtained indicate that AA extracts act as mixed type of inhibitor. Scanning electron microscopy (SEM) was used to analyze the surface adsorbed film.

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“…The refluxed solution was filtered using No.1 Whatman filter paper and heated on a water bath to evaporate the water content until a dried component was obtained. [15,24] For the preparation of DILE inhibitor, dried extract about 30, 60, 90, and 120 mg was used in 100 mL of 1 M NaOH to obtain 300, 600, 900, and 1200 ppm of (0.3, 0.6, 0.9, and 1.2 g/L) concentrations for corrosion studies.…”

Section: Preparation Of Derris Indica Leaves Extract (Dile)mentioning

confidence: 99%

Derris Indica Leaves Extract as a Green Inhibitor for the Corrosion of Aluminium in Alkaline Medium

Nambiar¹,

Brindha²,

Punniyakotti³

et al. 2021

Eng. Sci.

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The corrosion inhibitive effect of Derris indica leaves extract (DILE) on aluminium in 1 M NaOH is investigated at different temperatures. For this purpose, weight loss studies and electrochemical methods including potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) technique are employed. Surface analysis of the treated and untreated aluminium coupons are done by using metallurgical microscopy. About 60.2% of maximum corrosion inhibition efficiency is attained with an optimum inhibitor concentration of 1.2 g/L. Both weight loss and electrochemical studies confirmed that DILE plays a crucial role in the formation of a protective layer over metal surfaces. Also, electrochemical measurements revealed that DILE behaves as a mixed type of corrosion inhibitor. The kinetic parameters and thermodynamic parameters are calculated using Arrhenius theory and transition state theory. Langmuir adsorption isotherm was found to be the best fit and physical adsorption mechanism was proposed.

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Inhibition Performance and Adsorption Behavior of Spinacia Oleracea Leaves Extracts on Mild Steel Corrosion in Hydrochloric Acid Medium

Cited by 9 publications

References 32 publications

Onion Peel Extract/Copper Oxide Nanoparticles as Corrosion Inhibitors for Carbon Steel in Hydrochloric Acid; Extraction, Characterization, Electrochemical Study, and Theoretical Explorations

Onion Peel Extract/Copper Oxide Nanoparticles as Corrosion Inhibitors for Carbon Steel in Hydrochloric Acid; Extraction, Characterization, Electrochemical Study, and Theoretical Explorations

The Effect ofAchyranthes asperaExtracts on Mild Steel Corrosion in Industrial Water Medium

Derris Indica Leaves Extract as a Green Inhibitor for the Corrosion of Aluminium in Alkaline Medium

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