Comparison of anionic surfactants dodecylbenzene sulfonic acid and 1,2,4-triazole for inhibition of Co corrosion and study of the mechanism for passivation of the Co surface by dodecylbenzene sulfonic acid

Cheng, Yuanshen; Wang, Chenwei; Wang, Shengli; Zeng, Nengyuan; Lei, Shuangshuang

doi:10.1016/j.molliq.2022.118792

Cited by 30 publications

(7 citation statements)

References 63 publications

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“…Generally, when ΔG ads 0 is greater than −20 kJ mol −1 , the process is considered to be physical adsorption, and when ΔG ads 0 is less than −40 kJ mol −1 , it is considered to be chemisorption. 42 From the above calculated value, the adsorption of glycine on the surface of TiN can be concluded to be mixed physical and chemical adsorption, mainly physical adsorption.…”

Section: Resultsmentioning

confidence: 94%

Glycine as an Efficient Corrosion Inhibitor for TiN Oxidation Environments

Cheng

Wang²,

Wang³

et al. 2023

ECS J. Solid State Sci. Technol.

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In this study, the inhibition effect of glycine on TiN corrosion in hydrogen peroxide (H2O2) solution was studied through polishing experiments, static corrosion tests, and electrochemical tests. According to the results of electrochemical impedance spectroscopy, 3 wt% glycine exhibited an inhibition efficiency of more than 78% for TiN corrosion due to the greatly increased charge transfer resistance at the TiN/solution interface after its addition. Scanning electron microscopy, atomic force microscopy, and Fourier transform infrared spectroscopy analysis provided evidence that glycine molecules adsorbed on the TiN surface to form a protective film to prevent corrosion. Adsorption isotherm studies demonstrate that spontaneous, mixed physical and chemical adsorption occurs, which follows the Temkin model. The corrosion inhibition mechanism was investigated by X-ray photoelectron spectroscopy. The results show that glycine molecules can prevent TiN from being oxidized to titanium oxide, thus reducing the corrosion intensity. This study is of importance in solving the problem of a too fast corrosion rate of TiN in an oxidizing environment.

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Section: Resultsmentioning

confidence: 94%

Glycine as an Efficient Corrosion Inhibitor for TiN Oxidation Environments

Cheng

Wang²,

Wang³

et al. 2023

ECS J. Solid State Sci. Technol.

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“…The data fitted accurately into the Langmuir adsorption isotherm (LAI; R 2 ~1). The LAI equation is given below [ 45 , 46 ]:

where the equilibrium adsorption constant is denoted by

and whose values were derived from the straight line’s intercept, which was obtained by plotting C inh /θ against C inh . The LAI at different temperatures is displayed in Figure 4 .…”

Section: Resultsmentioning

confidence: 99%

“…The physical symbols have their standard meaning [ 45 , 46 ]. From Table 3 , it can be seen that the

were negative, suggesting the spontaneous reaction of the inhibitors being adsorbed on the MS, and the values are between −30 and −40 KJ mol −1 and hence, signify mixed adsorption, i.e., both physical (around −20 kJ mol −1 ) and chemical adsorption (>−40 kJ mol −1 ); and the adsorption tends to go towards chemisorption with increasing temperature.…”

Section: Resultsmentioning

confidence: 99%

Coco Monoethanolamide Surfactant as a Sustainable Corrosion Inhibitor for Mild Steel: Theoretical and Experimental Investigations

Ganjoo

Sharma

et al. 2023

Molecules

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Recent studies indicate that surfactants are a relatively new and effective class of corrosion inhibitors that almost entirely meet the criteria for a chemical to be used as an aqueous phase corrosion inhibitor. They possess the ideal hydrophilicity to hydrophobicity ratio, which is crucial for effective interfacial interactions. In this study, a coconut-based non-ionic surfactant, namely, coco monoethanolamide (CMEA), was investigated for corrosion inhibition behaviour against mild steel (MS) in 1 M HCl employing the experimental and computational techniques. The surface morphology was studied employing the scanning electron microscope (SEM), atomic force microscope (AFM), and contact measurements. The critical micelle concentration (CMC) was evaluated to be 0.556 mM and the surface tension corresponding to the CMC was 65.28 mN/m. CMEA manifests the best inhibition efficiency (η%) of 99.01% at 0.6163 mM (at 60 °C). CMEA performs as a mixed-type inhibitor and its adsorption at the MS/1 M HCl interface followed the Langmuir isotherm. The theoretical findings from density functional theory (DFT), Monte Carlo (MC), and molecular dynamics (MD) simulations accorded with the experimental findings. The MC simulation’s assessment of CMEA’s high adsorption energy (−185 Kcal/mol) proved that the CMEA efficiently and spontaneously adsorbs at the interface.

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“…6 Corrosion inhibitors have attracted widespread attention due to their simple operation, low investment, and high returns. 7,8 The commonly used corrosion inhibitors are various heterocyclic compounds, including imidazoline, amide, pyridine, and quinoline. 9,10 Due to the ability of lone electrons on heteroatoms to combine with the empty orbitals of metals, forming stable coordination bonds, and further enhancing the adsorption of corrosion inhibitors on metal surfaces through electrostatic attraction.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of new imidazoline derivative and 2‐aminopyridine as corrosion inhibitors for Q235: Experimental and theoretical study

Wang,

Fan,

Song

et al. 2024

Surface & Interface Analysis

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In order to reduce the investment of corrosion inhibitors, based on experimental and theoretical studies, the corrosion inhibition and mechanism of new imidazoline derivatives (SMIS) and 2‐aminopyridine (AMP) were investigated carefully. The best corrosion inhibition effect was at 0.7‐g/L SMIS and 0.3‐g/L AMP, the corrosion inhibition efficiency of weight loss, electrochemical impedance spectroscopy, and potentiodynamic polarization (Tafel) were 90.54%, 98.56% and 97.68%, respectively. Electrochemical research shows that SMIS&AMP belongs to cathodic corrosion inhibition. SMIS&AMP mainly increased the film resistance and charge transfer resistance in 1‐M HCl, thus playing a certain role in corrosion inhibition. X‐ray photoelectron spectroscopy and energy dispersive spectrometer proved that SMIS&AMP can be adsorbed on the surface of Q235, molecular dynamics showed that there was a certain synergy between SMIS and AMP. This study confirmed that SMIS and AMP have a good synergistic effect, improve the corrosion inhibition efficiency, reduce the synthesis cost of SMIS, and have a certain guiding significance for synergistic corrosion inhibition.

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Comparison of anionic surfactants dodecylbenzene sulfonic acid and 1,2,4-triazole for inhibition of Co corrosion and study of the mechanism for passivation of the Co surface by dodecylbenzene sulfonic acid

Cited by 30 publications

References 63 publications

Glycine as an Efficient Corrosion Inhibitor for TiN Oxidation Environments

Glycine as an Efficient Corrosion Inhibitor for TiN Oxidation Environments

Coco Monoethanolamide Surfactant as a Sustainable Corrosion Inhibitor for Mild Steel: Theoretical and Experimental Investigations

Synergistic effect of new imidazoline derivative and 2‐aminopyridine as corrosion inhibitors for Q235: Experimental and theoretical study

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