“…The produce was washed, using deionized water and then recrystallized from ethanol. Figure 1 The melting-point was recorded with complete compatible comparing with those in literatures; 80–82 °C 35 . Figure 1 Preparation of 2-(2-bromoethoxy) naphthalene.…”
Section: Methodssupporting
confidence: 64%
“…These data led some researchers to suggest that ILs are the best substance for preventing corrosion in metals 34 , 35 . Investigations into ILs corrosion inhibitors are growing fast from a different perspective.…”
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.
“…The produce was washed, using deionized water and then recrystallized from ethanol. Figure 1 The melting-point was recorded with complete compatible comparing with those in literatures; 80–82 °C 35 . Figure 1 Preparation of 2-(2-bromoethoxy) naphthalene.…”
Section: Methodssupporting
confidence: 64%
“…These data led some researchers to suggest that ILs are the best substance for preventing corrosion in metals 34 , 35 . Investigations into ILs corrosion inhibitors are growing fast from a different perspective.…”
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.
“…These MOFs demonstrated exceptional performance and found practical applications in biomedicine, energy storage, separation and adsorption, catalysts, and sensors, among other fields. 3,13 Similarly to the organic compounds and ionic liquids additives, 30,31 the ferrocene and its derivatives also have been extensively used as functional additives in diesel fuels or lubricants for the enhancement of combustion performance or boundary lubrication. [32][33][34][35] For instance, using ferrocene and CeO 2 nanoparticles as catalysts, the resultant fuels were effective in reducing the diesel particulate matter mass emissions and facilitated soot oxidation.…”
Tailoring of organometallics structure toward desirable properties continues to be both fascinating and challenging in the field of materials science. Herein, a novel ferrocene derivative with long straight‐chain alkane mono‐substituent is synthesized and used as multifunctional organometallic additive in the base oil. This ferrocene‐based organometallic compound (MFc) is synthesized via the Friedel‐Crafts acylation of ferrocene with myristyl chloride, followed by reduction with sodium borohydride. The chemical structure, crystallizability, surface morphology, and the thermal properties of the as‐synthesized compound are systematically characterized. As the iron‐containing standard substance, the MFc was preferable dissolve in lubricating oil with the iron element content as high as 2*105 ppm. Resultantly, the MFc/oil solutions exhibited excellent stability even after high‐speed centrifugal treatment, long‐term storage up to 3 months, and ultra‐low temperature treatment at −40°C for 24 h. Moreover, the MFc as a functional lubricant additive could reduce the average wear scar diameter, wear volume, and coefficient of friction with 40%, 73%, and 18%, respectively, as compared to the corresponding pure base oil. This synthetic strategy provides a novel perspective for the design of functional organometallics, and the as‐synthesized novel ferrocene derivative may find a wide range of advanced potential applications in analytical chemistry, tribology, and interfacial science.
“…Crude oil transportation is considered as a difficult and extremely technical operation. More efficient and commercial methods are required to deal with the high viscosity which represents the main difficulties in the pipeline transportation [1][2][3][4][5][6][7][8][9]. Its well-known that, wax crude oils carries a high viscosity and a high pour point make the production, transportation and refining operations more difficult, especially at a low temperature.…”
T HIS work was focused on an investigating of flow ability of waxy crude oil by nontraditional polymer compound. For this propose, a spirocompound consisted of benzaldehyede and triethanolamine 6,6'-(((phenylmethylene) bis (oxy)) bis (ethane-2,1-diyl)) bis (2-phenyl-1,3,6dioxazocane) [SB1] was synthesized using zeolite as a catalyst. The chemical structure of the [SB1] was investigated by FT-IR, TGA,GPC, H1NMR and Mass spectroscopy. The rheological behavior and pour point depression of waxy crude oil were also studied different dosages and temperatures. The results showed a significant reduction in the viscosity at different temperatures and dosages. Moreover, it was noticed a decrease in the apparent viscosity and the Bingham yield value for [SB1] 437.7, 367.1, and 307.1 cp and 0.48, 0.39 and 0.31 Pa at 15 ºC, 20 ºC and 30 ºC and concentration 1000 ppm respectively. While the blank experiment displayed 743.1, 694.2 and 607.2 cp and 0.74, 0.69 and 0.60 Pa at the same temperatures. This study included blends between [SB1] and the acrylate based polymers abbreviated as (B1, B2, B3 and B4). Furthermore, the rheological behavior and the pour point for these blends exhibited that the blend [B4] shew more reduction in the apparent viscosity than [SB1] being alone. The apparent viscosity and yield value for [B4] were; 267.8, 249.2 and 212.7 cp and 0.22, 0.11 and 0.09 Pa at 15ºC, 20ºC and 30ºC and concentration 1000 ppm respectively. The pour point depression (Δpp) of [SB1] was 9ºC while the blank pour point was 27 º C and the B4 was achieved the maximum depression in the pour point (Δpp= 18 º C) at a concentration of 1000 ppm. This result means that the addition of [SB1] to [B4] showed the most positive synergistic effect.
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