Macrocyclic compounds as green corrosion inhibitors for aluminium: electrochemical, surface and quantum chemical studies

doi:10.17675/2305-6894-2018-7-3-13

Cited by 7 publications

(6 citation statements)

References 27 publications

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“…From Figure 4, it is obviously seen that the addition of AY15 inhibitor affects both the cathodic and anodic curves. In addition the displacement in E corr value [24] was found to be 21 mV in case of AY15 which is obviously less than 85 mV, suggesting mixed type of inhibition. This means a reduction of both anodic metal dissolution and cathodic hydrogen gas evolution.…”

Section: Tafel Plots Measurementsmentioning

confidence: 85%

Corrosion inhibition studies of new synthesized 1,4-dioctyl-6-methyl-1,4-dihydroquinoxaline-2,3-dione on mild steel in 1.0 M HCl solution using gravimetric and electrochemical techniques supported by theoretical DFT calculations

Zouitini¹,

Rodi²,

Ouzidan³

et al. 2019

Int. J. Corros. Scale Inhib.

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The inhibition performance of 1,4-dioctyl-6-methyl-1,4-dihydroquinoxaline-2,3-dione (AY15) was studied as an inhibitor of mild steel in 1.0 M HCl solution at 308 K using experimental methods and theoretical calculations. 1,4-dioctyl-6-methyl-1,4-dihydroquinoxaline-2,3-dione (AY15) was synthesized and identified by elemental analysis, IR, 1 H NMR and 13 C NMR spectroscopy. The corrosion inhibition of (AY15) in 1.0 M HCl solution for mild steel was evaluated using weight loss and electrochemical techniques. The weight loss results show that inhibition efficiency increasing with increasing AY15 concentration and maximum value was obtained at 10-3 M concentration. Polarization analysis suggests that compound act as a mixed type of inhibitor. EIS data showed that in the presence of inhibitor, transfer resistance increased and C dl decreased due adsorption of inhibitor at the metal surface. It was found also that the adsorption of the inhibitor on the mild steel surface obeys the Langmuir isotherm model. The weight loss, electrochemical and Density Functional Theory (DFT) calculations are in good agreement.

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Section: Tafel Plots Measurementsmentioning

confidence: 85%

Corrosion inhibition studies of new synthesized 1,4-dioctyl-6-methyl-1,4-dihydroquinoxaline-2,3-dione on mild steel in 1.0 M HCl solution using gravimetric and electrochemical techniques supported by theoretical DFT calculations

Zouitini¹,

Rodi²,

Ouzidan³

et al. 2019

Int. J. Corros. Scale Inhib.

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show abstract

“…Same equivalent circuit was proposed in the literature for acidic corrosion of mild steel in presence of inhibitor organic [26]. The use of CPE-type impedance has been extensively stated by previous reports [27]. In this paper, the HOMO and LUMO orbital energies were calculated by using B3LYP method with 6-31G(d,p).…”

Section: V4 Electrochemical Impedance Measurementsmentioning

confidence: 91%

6-Nitro-1,4-di(prop-2-yn-1-yl)quinoxaline-2,3(1H,4H)-dione (NQPr) – a novel corrosion inhibitor for mild steel in hydrochloric acid environment

2019

Int. J. Corros. Scale Inhib.

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The novel synthesis of 6-nitro-1,4-di(prop-2-yn-1-yl)quinoxaline-2,3(1H,4H)-dione, and its corrosion inhibition effect on mild steel in 1.0 M HCl solution was evaluated through electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (Tafel), gravimetric and density functional theory (DFT) methods. The changes of corrosion current density and impedance modulus of mild steel in different concentrations of corrosion inhibitor solutions showed that the 6-nitro-1,4-di(prop-2-yn-1-yl)quinoxaline-2,3(1H,4H)-dione presented a valid protective effect on mild steel in 1.0 M HCl environment. The inhibition efficiency of 6-nitro-1,4-di(prop-2-yn-1-yl)quinoxaline-2,3(1H,4H)-dione on mild steel increases by increasing its concentration. Results showed that 6-chloro-1,4-di(prop-2-yn-1yl)quinoxaline-2,3(1H,4H)-dione acted as mixed type inhibitor. The 6-nitro-1,4-di(prop-2-yn-1-yl)quinoxaline-2,3(1H,4H)-dione exhibited the maximum inhibition efficiency of about 93% at a concentration of 1.0×10 -3 M. Adsorption of 6-nitro-1,4-di(prop-2-yn-1-yl)quinoxaline-2,3(1H,4H)-dione obeyed the Langmuir adsorption isotherm model. Gibbs free energy of adsorption (ΔG ads ), adsorption constant (K ads ) and activation energy (E a ) values showed that the inhibitor 6-nitro-1,4-di(prop-2-yn-1-yl)quinoxaline-2,3(1H,4H)-dione is strongly and spontaneously adsorbed on the mild steel surface/electrolyte interface. The inhibitive properties of 6-nitro-1,4-di(prop-2-yn-1-yl)quinoxaline-2,3(1H,4H)-dione obtained from experimental method was supported by DFT. Numerous parameters were computed and discussed in order to describe its adsorption behavior.

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“…As the exploration of heterocyclic compounds for corrosion inhibition in acidic solutions continues to evolve, a crucial facet of research involves a comparative analysis of these compounds. This section delves into the effectiveness of various heterocyclic compounds, considering key factors such as inhibition efficiency, cost-effectiveness, and environmental considerations [169][170][171].…”

Section: Comparative Analysis: Unraveling the Efficacy Cost And Envir...mentioning

confidence: 99%

Inhibition of Corrosion in Acidic Solutions: A Mini-Review on the Role of Heterocyclic Compounds

A. Alamiery

2024

J. Mater. Eng.

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Corrosion poses a persistent challenge in acidic environments, necessitating the exploration of effective corrosion inhibitors. This mini-review focuses on the utilization of heterocyclic compounds as corrosion inhibitors in acidic solutions. Beginning with an overview of corrosion mechanisms in acidic environments, we delve into the diverse array of heterocyclic compounds investigated for their corrosion inhibition properties. Emphasis is placed on elucidating the mechanisms through which these compounds mitigate corrosion, ranging from surface adsorption to film formation. Recent advancements in the field are highlighted, showcasing novel compounds and formulations exhibiting promising results. A comparative analysis evaluates the effectiveness of various heterocyclic compounds, considering factors such as inhibition efficiency, cost, and environmental considerations. Despite notable successes, challenges and limitations are discussed, paving the way for future research directions. In conclusion, this mini-review underscores the significant strides made in harnessing heterocyclic compounds as corrosion inhibitors, offering a glimpse into their potential impact on addressing corrosion challenges in acidic environments.

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Macrocyclic compounds as green corrosion inhibitors for aluminium: electrochemical, surface and quantum chemical studies

Cited by 7 publications

References 27 publications

Corrosion inhibition studies of new synthesized 1,4-dioctyl-6-methyl-1,4-dihydroquinoxaline-2,3-dione on mild steel in 1.0 M HCl solution using gravimetric and electrochemical techniques supported by theoretical DFT calculations

Corrosion inhibition studies of new synthesized 1,4-dioctyl-6-methyl-1,4-dihydroquinoxaline-2,3-dione on mild steel in 1.0 M HCl solution using gravimetric and electrochemical techniques supported by theoretical DFT calculations

6-Nitro-1,4-di(prop-2-yn-1-yl)quinoxaline-2,3(1H,4H)-dione (NQPr) – a novel corrosion inhibitor for mild steel in hydrochloric acid environment

Inhibition of Corrosion in Acidic Solutions: A Mini-Review on the Role of Heterocyclic Compounds

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