Synthesis and evaluation of a new water soluble corrosion inhibitor from recycled poly(ethylene terphethalate)

Migahed, M.A.; Abdul-Raheim, A. Mahmoud; Atta, Ayman M.; Brostow, Witold

doi:10.1016/j.matchemphys.2010.01.018

Cited by 65 publications

(25 citation statements)

References 33 publications

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“…[1][2][3] Among numerous prevention measures, corrosion inhibitor, bearing advantages of economy, high efficiency and wide applicability had been widely used. [4][5][6][7] Traditionally, inhibition performance test was mainly conducted using experimental methods, such as weight loss assessment, polarisation curves, electrochemical impedance spectroscopy, etc.…”

Section: Introductionmentioning

confidence: 99%

Theoretical evaluation of inhibition performance of purine corrosion inhibitors

Yan

Wang

Zhang

et al. 2013

Molecular Simulation

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Inhibition mechanism of three purine compounds, adenine (A), 2-amino-6-thiol-9H-purine (B) and 2,6-dithiol-9H-purine (C), was investigated by quantum chemical calculation and molecular dynamic simulation. The molecular reactivity was studied by quantum chemical calculation, and the distribution of the highest occupied molecular orbital (HOMO), the lowest unoccupied molecular orbital (LUMO), the energy gap between HOMO and LUMO and the Fukui index were proposed to describe the active sites of molecules, and the inferred inhibition efficiency followed the order of A , B , C. Furthermore, the adsorption behaviour of these three purine molecules on a metal surface was investigated via molecular dynamics simulation. The analysis of adsorption configuration indicated that these three purine molecules adsorbed parallely onto the metal surface, and the inferred inhibition efficiency from interaction energy also followed the order of A , B , C. These inferred inhibition efficiency from theoretical calculation was in good accordance with experimental results. This accordance indicated that our proposed theoretical method might be a feasible approach to assess the inhibition performance of inhibitors. Moreover, our research was helpful to filter the aimed inhibitor and design of the new inhibitor.

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Section: Introductionmentioning

confidence: 99%

Theoretical evaluation of inhibition performance of purine corrosion inhibitors

Yan

Wang

Zhang

et al. 2013

Molecular Simulation

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“…The inhibitor molecules may also reduce the capacitance by increasing the thickness of the double layer according to the Helmholtz model [25]:…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

Utilization of sulfidated poly (acrylamide-vinyl acetate) as a new corrosion inhibitor for carbon steel in acidic media

El‐Din

Khamis

2015

Journal of Industrial and Engineering Chemistry

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“…The adsorption is inuenced by the occurrence of a polar group in the inhibitor structure by which the molecules may connect themselves to the surface of the metal. [9][10][11][12] Free electron pairs on heteroatoms or p electrons and polar groups containing nitrogen, oxygen, phosphorus and/or sulphur in the molecular structure are fundamental characteristics of good inhibitors. [13][14][15][16] The structure and coverage of the inhibitory molecules both determine their inhibiting ability.…”

Section: Introductionmentioning

confidence: 99%

Ionic salt (4-ethoxybenzyl)-triphenylphosphonium bromide as a green corrosion inhibitor on mild steel in acidic medium: experimental and theoretical evaluation

et al. 2017

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A new phosphonium salt (4-ethoxybenzyl)-triphenylphosphonium bromide (EBTPPB), having different substituents attached to phosphorous and having different anions, is investigated as an inhibitor for mild steel (MS) corrosion in 0.5 M H 2 SO 4 solutions via electrochemical polarization and electrochemical impedance (EI) spectroscopy. Electrochemical results show that EBTPPB compound has practically good inhibiting features for MS corrosion in the corrosive medium with efficiencies of approximately 98% at an optimum 10 À2 M concentration. The inhibition is of a mixed cathodic-anodic type. Passive potential (E pp ) of the modified steel specimen is in the inactive region and thus inhibits the corrosion process.Langmuir Adsorption (LA) isotherm was performed to provide precise information on the adsorption behavior of the ionic salt. It exhibits both physisorption and predominantly chemisorption mechanism on MS surface. Scanning Electron Microscopy (SEM) associated with Energy Dispersion X-ray (EDX) and Atomic Force Microscopy (AFM) assessment of the electrode surface is consistent with the existence of adsorbing screen of EBTPPB molecules. An apparent connection was ascertained between the experimental corrosion inhibition efficiency (IE%) and the theoretical parameters using quantum chemical calculations.

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Synthesis and evaluation of a new water soluble corrosion inhibitor from recycled poly(ethylene terphethalate)

Cited by 65 publications

References 33 publications

Theoretical evaluation of inhibition performance of purine corrosion inhibitors

Theoretical evaluation of inhibition performance of purine corrosion inhibitors

Utilization of sulfidated poly (acrylamide-vinyl acetate) as a new corrosion inhibitor for carbon steel in acidic media

Ionic salt (4-ethoxybenzyl)-triphenylphosphonium bromide as a green corrosion inhibitor on mild steel in acidic medium: experimental and theoretical evaluation

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