Synergistic mechanism of ternary green corrosion inhibitors for N80 steel in 20 wt% HCl solution: Encapsulation and transportation of vanillin through micelles formed by ionic liquids

Yan, Huan; Dai, Shanshan; Liu, Peng; Zhu, Yuanqiang

doi:10.1016/j.corsci.2023.111750

Cited by 9 publications

(3 citation statements)

References 41 publications

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“…The adsorption of inhibitors onto the steel surface plays a crucial role in corrosion inhibition. , Therefore, the corrosion inhibition effect of MPF was further analyzed by investigating the isothermal adsorption of MPF on the steel surface in a 3.5 wt % NaCl solution. According to the Langmuir adsorption isotherm, the relationship between the concentration of inhibitor ( C inh ) and the surface coverage of the inhibitor on the steel (θ) could be defined as follows: − italicC inh θ = 1 italicK ads + italicC inh where K ads represents the adsorption–desorption equilibrium constant.…”

Section: Resultsmentioning

confidence: 99%

Self-Oriented Functionalized MXene with Excellent Antioxidant Properties for Enhancing Anticorrosion Properties of Waterborne Epoxy Resin

Fan,

Wu,

Zhang

et al. 2024

Ind. Eng. Chem. Res.

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A MXene/poly(dimethyl diallyl ammonium chloride) (PDDA)/Fe 3 O 4 (MPF) hybrid with exceptional oxidation resistance was synthesized via electrostatic self-assembly. Subsequently, a magnetic field was utilized to construct the parallelaligned MPF within the waterborne epoxy coating (WEC). This parallel-aligned hybrid could significantly hinder the penetration of the corrosive ions. The electrochemical impedance spectroscopy (EIS) results revealed that the WEC containing parallel-aligned MPF (VMPF/WEC) exhibited the highest low-frequency impedance modulus (|Z 0.01 Hz |) among all coatings, which was 3 orders of magnitude higher than that of WEC in the initial stage of corrosion. After 42 days of the corrosion, the |Z 0.01 Hz | of VMPF/ WEC surpassed that of WEC by more than 2 orders of magnitude, thereby indicating the exceptional long-term corrosion resistance of VMPF/WEC. This work proposed novel ideas for constructing high-performance anticorrosion WECs.

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Section: Resultsmentioning

confidence: 99%

Self-Oriented Functionalized MXene with Excellent Antioxidant Properties for Enhancing Anticorrosion Properties of Waterborne Epoxy Resin

Fan,

Wu,

Zhang

et al. 2024

Ind. Eng. Chem. Res.

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“…The original cations in the gas phase were used to investigate the extraction desulfurization mechanism of the ILs. Quantum chemical parameters, namely, energy of the highest occupied molecular orbital ( E HOMO ), energy of the lowest unoccupied molecular orbital ( E LUMO ), energy gap (Δ E ), global hardness (η g ) and softness (σ), electronegativity (χ), fraction of electron transfer (Δ N ), and van der Waals volume ( V ) were calculated . More computational details are given in the Supporting Information.…”

Section: Methodsmentioning

confidence: 99%

Ionic Liquids as Extraction Desulfurizers and Corrosion Inhibitors: Experimental and Theoretical Studies

Cui,

Zhan,

Laiwang

et al. 2024

ACS Sustainable Chem. Eng.

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Ionic liquids (ILs) have received widespread attention in the field of green desulfurization in the past few years due to their excellent desulfurization ability and infinite potential for designability. However, the additional costs and environmental issues faced when dealing with ILs with degraded desulfurization performance have limited their practical applications. To solve the reuse problem of degraded ILs, this study analyzed the feasibility of using ILs as extraction desulfurizers and corrosion inhibitors in refineries using methods such as liquid chromatography, electrochemical impedance spectroscopy, quantum chemistry, and molecular dynamics simulation. The results indicated that 1-hydroxyethyl-3-hexylimidazolium bromide gave a great thiophene desulfurization efficiency of 50.82% and an excellent corrosion inhibition efficiency of 98.29%. After undertaking desulfurization tasks, the IL could continue to act as an interface-type inhibitor to adsorb on the Q235 surfaces, hindering aqueous electrolyte attack and thus inhibiting the corrosion rate of refining equipment. Its adsorption obeyed the Langmuir isotherm. Improving the electron donating ability, side chain interaction, imidazolium ring, and thiophene interaction, as well as the adsorption of thiophene S atoms on long side chains of IL cations, while suppressing the interaction between the imidazolium ring and n-heptane and the adsorption of n-heptane on the long side chains, could further increase the corrosion inhibition and desulfurization performance of ILs. Using ILs as extraction desulfurizers and corrosion inhibitors is expected to solve environmental and safety issues in the refining process and reduce the adverse effects of high prices on the practical application of ILs.

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“…When choosing an inhibitor, there are many factors that determine it, including cost, ease of availability, and most importantly, environmental safety and its types [8]. Green inhibitors are classified as environmentally friendly inhibitors that are produced from renewable, low-cost, nontoxic sources and provide a high rate of inhibition efficiency [9]. They are represented by plants such as "extracts and oils," pharmaceutical liquids, ionic, etc.…”

Section: Introductionmentioning

confidence: 99%

Red pepper extract as eco-friendly corrosion inhibitor for Carbon steel N80 in 1 M HCl: Electrochemical and surface morphological studies

Aksh,

Abdul Nabi

2024

J. Basrah Res. (Sci.)

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Four different concentrations of a plant inhibitor (dry red pepper) were created to investigate its effectiveness in preventing corrosion of a N80 carbon steel alloy used in petroleum pipe manufacturing. This was done in a 1M HCl acidic solution at various temperatures using electrochemical techniques and surface analysis. The inhibitor was discovered to be effective and efficient. As inhibitor concentrations rise, inhibition also increases because the protective layer becomes thicker. At a concentration of 200 ppm at a temperature of 298 K, the inhibition efficiency reached 92.69%. Corrosion rate decreases in the presence of the plant inhibitor. Despite the presence of the plant inhibitor, the corrosion rate in the acidic media (HCl 1M) was 15.58 mpy lower than when the inhibitor was absent. It reached 1.138 when it was. This is because of the reduction in the current density of Icorr. The polarisation results showed that the addition of the inhibitor reduced the corrosion current density of the steel. The Carbon N80 corrosion rate ranges from 34.22 µA/cm2 for the sample without inhibitor to 2.5 µA/cm2 for the sample including 200 ppm of inhibitor (C). The polarisation curves and electrochemical investigations suggest that the corrosion inhibitor exhibits both anodic and cathodic inhibition processes, indicating a mixed kind of inhibition. FT-IR technology analysed the inhibitor's chemical composition and revealed the presence of functional groups and heteroatoms. SEM was utilised to locate the inhibitor layer on the carbon steel alloy surface, which serves to prevent corrosion

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Synergistic mechanism of ternary green corrosion inhibitors for N80 steel in 20 wt% HCl solution: Encapsulation and transportation of vanillin through micelles formed by ionic liquids

Cited by 9 publications

References 41 publications

Self-Oriented Functionalized MXene with Excellent Antioxidant Properties for Enhancing Anticorrosion Properties of Waterborne Epoxy Resin

Self-Oriented Functionalized MXene with Excellent Antioxidant Properties for Enhancing Anticorrosion Properties of Waterborne Epoxy Resin

Ionic Liquids as Extraction Desulfurizers and Corrosion Inhibitors: Experimental and Theoretical Studies

Red pepper extract as eco-friendly corrosion inhibitor for Carbon steel N80 in 1 M HCl: Electrochemical and surface morphological studies

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