Electrochemical and DFT studies of quinoline derivatives on corrosion inhibition of AA5052 aluminium alloy in NaCl solution

Wang, Dapeng; Yang, Dong; Zhang, Daquan; Li, Kang; Gao, Lixin; Lin, Tong

doi:10.1016/j.apsusc.2015.09.206

Cited by 101 publications

(25 citation statements)

References 39 publications

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“…In case of CSB-2, the R p is equal to R s + R ct , whereas in case of CSB-3, R p is equivalent to the R s + R ct + R f . 31 The IE was calculated from the R p by using the following equationwhere R p 0 and R p i represent the polarization resistance in the absence and presence of inhibitor, respectively. The obtained impedance results are listed in Table 2.…”

Section: Results and Discussionmentioning

confidence: 99%

Microwave-Induced Synthesis of Chitosan Schiff Bases and Their Application as Novel and Green Corrosion Inhibitors: Experimental and Theoretical Approach

et al. 2018

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Environmentally friendly three chitosan Schiff bases (CSBs) were first time synthesized under microwave irradiation by the reaction of chitosan and aldehydes [benzaldehyde (CSB-1), 4-(dimethylamino)benzaldehyde (CSB-2), and 4-hydroxy-3-methoxybenzaldehyde (CSB-3)] and characterized by IR and NMR spectroscopy. The corrosion inhibition performance of the synthesized inhibitors was studied by the electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP). The results show that all the Schiff bases (CSBs) act as effective corrosion inhibitors for mild steel in 1 M HCl solution. Among the synthesized Schiff bases, CSB-3 exhibited the maximum inhibition efficiency of 90.65% at a very low concentration of 50 ppm. The EIS results showed that the CSBs inhibit corrosion by the adsorption mechanism. The PDP results show that all the three Schiff bases are mixed-type inhibitors. The formation of inhibitor films on the mild steel surface was supported by scanning electron microscopy/energy dispersive X-ray analysis and Fourier-transform infrared spectroscopy methods. The adsorption of CSBs on the mild steel surface obeys the Langmuir adsorption isotherm. The theoretical studies via density functional theory and molecular dynamics simulation corroborated the experimental results.

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Section: Results and Discussionmentioning

confidence: 99%

Microwave-Induced Synthesis of Chitosan Schiff Bases and Their Application as Novel and Green Corrosion Inhibitors: Experimental and Theoretical Approach

et al. 2018

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“…Anodic (5) Likewise in the cathodic area, the reduction (hydrogen gas formation) reaction was considerably decreased due to the alkylation impact of ionic liquid on the adsorption effect instead of H + , and thus hydrogen gas evolution was reduced.…”

Section: Study Of Hydrogen Gas Evolution Over N 1 Atom Of Ionic Liquimentioning

confidence: 99%

“…Over the last few decades, several types of organic compounds have been synthesized and used as corrosion inhibitors to mitigate the corrosion process in different environments [3][4][5]. More recently, ionic liquids have been recognized as a better corrosion inhibitor for metal corrosion in an acid environment [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Structural Effect in Ionic Liquids Is the Vital Role to Enhance the Corrosion Protection of Metals in Acid Cleaning Process

Kannan¹,

Varghese²

2019

Corrosion Inhibitors

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Various kinds of methods have been developed and used to overcome different types of corrosion throughout the world. One possible and easy way to avert corrosion is use of an inhibitor. An inhibitor can be applicable to any type of metal irrespective of medium (acid, alkaline, and neutral). Still, several inhibitors are emerging day by day in the corrosion world and most of them are heterocyclic compounds. In this respect, ionic liquid is attracting the attention of the research community. Because of ionic liquid's salient feature of melting and boiling points, it is being employed as a solvent in various types of reaction. In recent years, synthesizing and functionalizing the structure of ionic liquids in such a way to attain the desire requirement have become significant key factors in the field. By altering the cationic part or anionic part (halogen group), the chemical property of ionic liquids will change considerably. Besides, it will enhance the tendency of the electrondonating nature of the cationic part. This behavior equips them to be employed in the field of corrosion. While it meets the metal surface in the aggressive medium it will be attracted, leads to better surface protection from metal dissolution.

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“…This finding indicates that the adsorption of the ortho-aniline compounds on aluminum surface and protect the surface from aggressive attack by H 2 SO 4 solution. 13…”

Section: Surface Morphologymentioning

confidence: 99%

“…Density functional theory (DFT) has become very helpful and popular in studying the metal-electrolyte interface relationship, adsorption properties, and corrosion inhibition mechanism, as well as to analyze the experimental data. 12,13 The goal of our work is to investigate and explain the corrosion protection of aluminum through studying the aluminumelectrolyte interface relationship in an aggressive sulphuric acid solution in the absence and presence of ortho-aniline derivatives ( Fig. 1) containing different electronic nature groups (either donating or withdrawing) using electrochemical measurements, surface analysis, and DFT calculations.…”

Section: Introductionmentioning

confidence: 99%

Effect ofortho-substituted aniline on the corrosion protection of aluminum in 2 mol/L H₂SO₄solution

2017

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Electrochemical and DFT studies of quinoline derivatives on corrosion inhibition of AA5052 aluminium alloy in NaCl solution

Cited by 101 publications

References 39 publications

Microwave-Induced Synthesis of Chitosan Schiff Bases and Their Application as Novel and Green Corrosion Inhibitors: Experimental and Theoretical Approach

Microwave-Induced Synthesis of Chitosan Schiff Bases and Their Application as Novel and Green Corrosion Inhibitors: Experimental and Theoretical Approach

Structural Effect in Ionic Liquids Is the Vital Role to Enhance the Corrosion Protection of Metals in Acid Cleaning Process

Effect ofortho-substituted aniline on the corrosion protection of aluminum in 2 mol/L H₂SO₄solution

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Electrochemical and DFT studies of quinoline derivatives on corrosion inhibition of AA5052 aluminium alloy in NaCl solution

Cited by 101 publications

References 39 publications

Microwave-Induced Synthesis of Chitosan Schiff Bases and Their Application as Novel and Green Corrosion Inhibitors: Experimental and Theoretical Approach

Microwave-Induced Synthesis of Chitosan Schiff Bases and Their Application as Novel and Green Corrosion Inhibitors: Experimental and Theoretical Approach

Structural Effect in Ionic Liquids Is the Vital Role to Enhance the Corrosion Protection of Metals in Acid Cleaning Process

Effect ofortho-substituted aniline on the corrosion protection of aluminum in 2 mol/L H2SO4solution

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Effect ofortho-substituted aniline on the corrosion protection of aluminum in 2 mol/L H₂SO₄solution