Comparative Evaluation of Anticorrosive Properties of Mahaleb Seed Extract on Carbon Steel in Two Acidic Solutions

Ganash, Aisha A.

doi:10.3390/ma12183013

Cited by 16 publications

(4 citation statements)

References 50 publications

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“…FTIR that is obviously sensitive to changes in molecular dipole moments was applied to determine how PCA molecules weaken the solvation interaction between Al 3+ and H 2 O. Figure C exhibits the typical vibration peaks of Al(OTf) 3 : −CF 3 group at 1247.4 cm –1 and the ether sulfonate group −SO 3 at 1029.8–1179.3 cm –1 . , A strong band in the FTIR spectra at ∼3370 cm –1 is ascribed to free −OH stretching from water molecules. , Notably, the vibration stretching of −OH in electrolyte encountered a slight blue shift (3267.8 and 3421.5 cm –1 for AE and HE-0.6, respectively) when PCA with different concentrations were introduced. In addition, further analysis of the FTIR spectra shows that the FTIR spectrum of HE-0.4 has two main peaks at ca.…”

Section: Resultsmentioning

confidence: 99%

“…28,29 A strong band in the FTIR spectra at ∼3370 cm −1 is ascribed to free −OH stretching from water molecules. 30,31 Notably, the vibration stretching of −OH in electrolyte encountered a slight blue shift (3267.8 and 3421.5 cm −1 for AE and HE-0.6, respectively) when PCA with different concentrations were introduced. In addition, further analysis of the FTIR spectra shows that the FTIR spectrum of HE-0.4 has two main peaks at ca.…”

Section: Solvent Control Of O−h Bonds In Dilute Aqueousmentioning

confidence: 99%

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Solvation Structure Regulation for Highly Reversible Aqueous Al Metal Batteries

Zhao,

Zhang,

et al. 2024

J. Am. Chem. Soc.

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Metallic Al has been deemed an ideal electrode material for aqueous batteries by virtue of its abundance and high theoretical capacity (8056 mAh cm −3 ). However, the development of aqueous Al metal batteries has been hindered by several side reactions, including water decomposition, Al corrosion, and passivation, which arise from the solvation reaction of Al and H 2 O in conventional aqueous electrolytes. In this work, we report that water activity in electrolyte can be suppressed by optimizing the Al 3+ solvation structure through intercalation of polar pyridine-3-carboxylic acid in an aluminum trifluoromethanesulfonate aqueous environment. Furthermore, the pyridine-3-carboxylic acid molecules are inclined to alter the surface energy of Al, thus suppressing the random deposition of Al. As a result, the Al corrosion in the hybrid electrolyte is restrained, and the long-term electrochemical stability of the electrolyte is tremendously improved. These merits bring remarkable reversibility to aqueous Al batteries using Al-preintercalated MnO 2 cathodes, delivering a retaining energy density of >250 Wh kg −1 at 0.2 A g −1 after 600 cycles.

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Section: Resultsmentioning

confidence: 99%

Section: Solvent Control Of O−h Bonds In Dilute Aqueousmentioning

confidence: 99%

Solvation Structure Regulation for Highly Reversible Aqueous Al Metal Batteries

Zhao,

Zhang,

et al. 2024

J. Am. Chem. Soc.

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“…As we noted, the impedance spectra (Figs.3 and 4) dispose of a unique capacitive loop. This unique capacitive loop indicating that the only process occurring is charge transfer 33,34 . Furthermore, these capacitive loops are not the perfect semicircles due to a frequency dispersion effect 35 From the resulting data on impedance (Table 3) PMP found to be the best inhibitor.…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 97%

Experimental and theoretical study on corrosion inhibition of new synthesized menthone derivatives (Menthopyrazole compounds) for mild steel in 1 M HCl solution

Ansari¹,

Manssouri²,

Znini³

et al. 2020

Mediterr.J.Chem.,

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The aim of the present work is to evaluate the protective ability of newly menthone derivatives 7-isopropyl-4-methyl-4,5,6,7-tetrahydro-1H-indazole (HMP) and 7-isopropyl-4-methyl-1-phenyl-4,5,6,7-tetrahydro-1H-indazole (PMP) as mild steel corrosion inhibitors in 1M HCl, which may get applications as eco-friendly corrosion inhibitors in acidizing processes in the industry. The corrosion attitude of mild steel at various concentrations of the inhibitors was examined in the range from 298 to 328 K. An increase in the inhibitory effectiveness in acidic solution at higher concentration and temperature follow the existence of inhibitors. The aspect of adsorption mixed type of inhibitors was highlighted by the Polarization curves. The adsorption of HMP and PMP is in line with the Langmuir isotherm model. Theoretical indices study of both inhibitors (HMP and PMP) via CDFT (the conceptual density functional theory) has been studied. To search for the best spatial configuration of steel/inhibitor a Monte Carlo simulation studies were applied.

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“…As shown in Table 3, it appears that the corrosion current decreases with an increasing concentration of inhibitor, and the corrosion potential shifts to less negative values. That is, the corrosion potential shifts toward the anode, which means that the presence of the inhibitor inhibits the anodic reaction more than the cathodic reaction [40]. In other words, CoO/Co 3 O 4 NPs act as a mixed type of inhibitor, with the predominant anodic effect.…”

Section: The Potentiodynamic Polarization Techniquementioning

confidence: 99%

The Use of Synthesized CoO/Co3O4 Nanoparticles as A Corrosion Inhibitor of Low-Carbon Steel in 1 M HCl

Al-Senani

Al-Saeedi

2022

Materials

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CoO/Co3O4 nanoparticles (CoO/Co3O4 NPs) were synthesized with egg white. The effectiveness of CoO/Co3O4 NPs to inhibit the corrosion of carbon steel has verified in acidic medium (1 M HCl). It has been found that Langmuir adsorption isotherm is the dominant adsorption process of CoO/Co3O4 NPs on the surface of low-carbon steel. The thermodynamic parameters also demonstrated that the adsorption process of CoO/Co3O4 NPs was a physicochemical, spontaneous, and exothermic process. The electrochemical impedance spectroscopy technique and potentiodynamic polarization were applied. The results obtained in this study showed that CoO/Co3O4 NPs acted as a mixed inhibitor for the anodic reaction and the cathodic reaction, and the efficiency to inhibit the corrosion was 93% at 80 ppm of the inhibitor. The results of scanning electron microscopy (SEM) technique, energy-dispersive X-ray spectroscopy (EDS), and X-ray electron spectroscopy (XPS) confirmed the effectiveness that was obtained using the inhibitor to protect the surface of low carbon steel. Thus, low-carbon steel can be protected against corrosion in acidic medium using CoO/Co3O4 NPs as inhibitors.

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Comparative Evaluation of Anticorrosive Properties of Mahaleb Seed Extract on Carbon Steel in Two Acidic Solutions

Cited by 16 publications

References 50 publications

Solvation Structure Regulation for Highly Reversible Aqueous Al Metal Batteries

Solvation Structure Regulation for Highly Reversible Aqueous Al Metal Batteries

Experimental and theoretical study on corrosion inhibition of new synthesized menthone derivatives (Menthopyrazole compounds) for mild steel in 1 M HCl solution

The Use of Synthesized CoO/Co3O4 Nanoparticles as A Corrosion Inhibitor of Low-Carbon Steel in 1 M HCl

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