The adsorption, CMC determination and corrosion inhibition of some N-alkyl quaternary ammonium salts on carbon steel surface in 2M H2SO4

Fuchs–Godec, Regina

doi:10.1016/j.colsurfa.2006.01.046

Cited by 184 publications

(75 citation statements)

References 31 publications

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“…The inhibitor molecule first adsorb on the copper surface and blocking the available reaction sites [25]. The surface coverage increases with the inhibitor concentration.…”

Section: Potentiodynamic Polarization Studiesmentioning

confidence: 99%

Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4‐amino‐4H,3,5‐di(methoxy)‐1,2,4‐triazole (ATD), BATD, and DBATD on copper metal in 1N H₂SO₄

John

Joy

Prajila

et al. 2011

Materials & Corrosion

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The interaction of 4-amino-4H,3,5-di(methoxy)-1,2,4-triazole (ATD), (4-(benzylideneamino)-4H-1,2,4-triazole-3,5-diyl) dimethanol (BATD), and (4-(4-(dimethylamino) benzylideneamino))-4H-1,2,4-triazole-3,5-diyl) dimethanol (DBATD) on copper in 1 N sulfuric acid was investigated by potentiodynamic polarization (Tafel), ac impedance (EIS), molecular dynamic (MD) studies, and quantum chemical calculations at 300 K. Polarization studies clearly showed that ATD, BATD, and DBATD act as mixed type inhibitors. As the electron density around the inhibitor molecule increases due to substitution, the inhibition efficiency also increases correspondingly. Quantum chemical approach was used to calculate some electronic properties of these molecules to ascertain the correlation between inhibitive effect and molecular structure. Both the experimental and theoretical studies agree well in this regard and confirm that DBATD is having a better interaction with the metal surface in 1 N sulfuric acid than BATD and ATD. The adsorption behaviors of these molecules on the copper surface have been studied using MDs method and density functional theory.

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“…The inhibitor molecule first adsorb on the copper surface and blocking the available reaction sites [25]. The surface coverage increases with the inhibitor concentration.…”

Section: Potentiodynamic Polarization Studiesmentioning

confidence: 99%

Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4‐amino‐4H,3,5‐di(methoxy)‐1,2,4‐triazole (ATD), BATD, and DBATD on copper metal in 1N H₂SO₄

John

Joy

Prajila

et al. 2011

Materials & Corrosion

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“…Nevertheless, a horizontal arrangement to the cathode can also be made of them. As there is an increment in the concentration of added ILs, the alkyl chain may trend for a vertical arrangement to improve absorption [75]. In this manner, more quaternary ammonium cations can adsorb at the cathode surface and act together to form a layer above the head group; this will block the cathode surface and bring about an increment in the inhibition efect on the approach of the Cu 2+ species and the resulting electroreduction reaction.…”

Section: Progress and Developments In Ionic Liquids 142mentioning

confidence: 99%

Ionic Liquids as Electrodeposition Additives and Corrosion Inhibitors

Zhang¹,

Ye²

2017

Progress and Developments in Ionic Liquids

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Ionic liquids (ILs) are molten salts with a melting point of 100°C or below and solely consist of cations and anions. As a kind of novel green solvent, ILs have been obtained broad and deep investigations, and enormous progresses in various ields have been made during the recent 20 years. Despite the fact that the application studies of ILs have been proposed in various ields, no processes have yet been developed to an industrial scale. However, the main interests are still focused on their industrial applications. In this chapter, two perspective applications of ILs in electrochemical ields including additives for metal electrodeposition and inhibitors for metal anti-corrosion were introduced.

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“…For chemisorption to occur Gibbs free energy must be more negative than -40 kJ/mol [33]. Within the effective temperature range (17°C to 60°C), Gibbs free energy results indicate that chemisorption is occurring.…”

Section: = − S (17)mentioning

confidence: 99%

Effectiveness of Imidazoline in Mitigating Transport Pipeline Corrosion

Akindeju¹,

Obanijesu²,

Boyanich³

et al. 2017

Struct Chem Crystallogr Commun

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The detrimental effects of corrosion in transportation pipelines have been a primary issue for the oil and gas industry for many years. Every year, millions of dollars are invested into corrosion inhibitors in order to minimise corrosions implication on flow assurance. Imidazoline and its derivatives have been a prevalent corrosion inhibitor owing to its good adsorption characteristics and film forming capabilities; however, there remains some uncertainty in literature pertaining to the effect of temperature on its performance. GULP simulation software was used to study the effect of temperature on the thermodynamic properties of imidazoline in carbon steel pipelines. Entropy, heat capacity, Helmholtz free energy, entropy and Gibbs free energy were influenced by changes in temperature. An optimal operating range was found to exist between 298K and 333K. Within this range, spontaneous chemisorption was occurring and the imidazoline molecules possessed enough kinetic energy to displace any bound water on the metal surface to permit the preferential adsorption of the imidazoline head group. However, beyond 333K, the kinetic energy of the system hindered the steady formation of the protective barrier, reducing its inhibitive potential. This study agrees with previous literature on the effect of temperature on the ability of imidazoline as a corrosion inhibitor, however further studies into the effect of pipeline conditions and imidazoline molecular structure are needed in order to affirm the optimal applicability of imidazoline as a corrosion inhibitor.

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The adsorption, CMC determination and corrosion inhibition of some N-alkyl quaternary ammonium salts on carbon steel surface in 2M H2SO4

Cited by 184 publications

References 31 publications

Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4‐amino‐4H,3,5‐di(methoxy)‐1,2,4‐triazole (ATD), BATD, and DBATD on copper metal in 1N H₂SO₄

Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4‐amino‐4H,3,5‐di(methoxy)‐1,2,4‐triazole (ATD), BATD, and DBATD on copper metal in 1N H₂SO₄

Ionic Liquids as Electrodeposition Additives and Corrosion Inhibitors

Effectiveness of Imidazoline in Mitigating Transport Pipeline Corrosion

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The adsorption, CMC determination and corrosion inhibition of some N-alkyl quaternary ammonium salts on carbon steel surface in 2M H2SO4

Cited by 184 publications

References 31 publications

Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4‐amino‐4H,3,5‐di(methoxy)‐1,2,4‐triazole (ATD), BATD, and DBATD on copper metal in 1N H2SO4

Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4‐amino‐4H,3,5‐di(methoxy)‐1,2,4‐triazole (ATD), BATD, and DBATD on copper metal in 1N H2SO4

Ionic Liquids as Electrodeposition Additives and Corrosion Inhibitors

Effectiveness of Imidazoline in Mitigating Transport Pipeline Corrosion

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Product

Resources

About

Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4‐amino‐4H,3,5‐di(methoxy)‐1,2,4‐triazole (ATD), BATD, and DBATD on copper metal in 1N H₂SO₄

Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4‐amino‐4H,3,5‐di(methoxy)‐1,2,4‐triazole (ATD), BATD, and DBATD on copper metal in 1N H₂SO₄