Synthesis, characterization, and studies of the interfacial and anticorrosion properties of a ternary cationic ionic liquid on carbon steel in a molar concentration of hydrochloric acid: Experimental and computational insights
“…7 It consists of R s (solution resistance), Rct (charge transfer resistance), a CPE (constant phase element) and the film resistance element Rf . CPE is used instead of an ideal capacitor due to the heterogeneity of the surface as reflected by the imperfectness of the semicircles 46 . Figure 7 The selected Equivalent Circuits describing EIS data ( A , C for blank and B , D for 100 ppm concentration of 1MPyrBr).…”
Section: Resultsmentioning
confidence: 99%
“…Showing that the IL-3MPyBr's capacity to adhere to the surface of carbon steel and enhance inhibition is stronger 37 , 53 . Furthermore, the selection of inhibitory molecules to protect carbon steel's surface from corrosive environments is influenced by the molecular surface of the material 46 .…”
The challenge of corrosion posed as a result of acidic sittings is considered as a major industrial concern, wherein ionic liquids serve as crucial in addressing the corrosive impacts on metals. In this study, five selected cyclic ammonium based ionic liquids were synthesized; IL-1MPyrBr, IL-1MPipBr, IL-2PyBr, IL-3MPyBr and IL-4MPyBr and their chemical structures were characterized using a variety of spectroscopic techniques (FT-IR, IH-NMR, 13C-NMR, Elemental analysis and thermal gravimetric analysis (TGA). Their corrosion inhibition efficiency was studied on carbon steel in 1 M HCl via different concentrations at 298 K using chemical and electrochemical parameters (PDP and EIS). DFT quantum parameters were computed, and the noted results were in complete compatible with the experimental. The synthesized ILs recorded excellent inhibition on the carbon steel corrosion in acidic media with increasing efficiency by increasing the inhibitor concentrations from 20 to 100 ppm. Different cations in the synthesized ILs affect the anti-corrosion effect and IL-3MPyBr showed the highest inhibition (ηR); 96.12% using the lowest concentration. Kinetic and thermodynamic considerations were studied and illustrated.
“…7 It consists of R s (solution resistance), Rct (charge transfer resistance), a CPE (constant phase element) and the film resistance element Rf . CPE is used instead of an ideal capacitor due to the heterogeneity of the surface as reflected by the imperfectness of the semicircles 46 . Figure 7 The selected Equivalent Circuits describing EIS data ( A , C for blank and B , D for 100 ppm concentration of 1MPyrBr).…”
Section: Resultsmentioning
confidence: 99%
“…Showing that the IL-3MPyBr's capacity to adhere to the surface of carbon steel and enhance inhibition is stronger 37 , 53 . Furthermore, the selection of inhibitory molecules to protect carbon steel's surface from corrosive environments is influenced by the molecular surface of the material 46 .…”
The challenge of corrosion posed as a result of acidic sittings is considered as a major industrial concern, wherein ionic liquids serve as crucial in addressing the corrosive impacts on metals. In this study, five selected cyclic ammonium based ionic liquids were synthesized; IL-1MPyrBr, IL-1MPipBr, IL-2PyBr, IL-3MPyBr and IL-4MPyBr and their chemical structures were characterized using a variety of spectroscopic techniques (FT-IR, IH-NMR, 13C-NMR, Elemental analysis and thermal gravimetric analysis (TGA). Their corrosion inhibition efficiency was studied on carbon steel in 1 M HCl via different concentrations at 298 K using chemical and electrochemical parameters (PDP and EIS). DFT quantum parameters were computed, and the noted results were in complete compatible with the experimental. The synthesized ILs recorded excellent inhibition on the carbon steel corrosion in acidic media with increasing efficiency by increasing the inhibitor concentrations from 20 to 100 ppm. Different cations in the synthesized ILs affect the anti-corrosion effect and IL-3MPyBr showed the highest inhibition (ηR); 96.12% using the lowest concentration. Kinetic and thermodynamic considerations were studied and illustrated.
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