Chemical and Electrochemical Investigation of a Novel Liquid Crystal as an Anticorrosion Agent for Mild Steel in Acidic Media

Elsawy, Ahmed Noubi; Khalil, Hazem; Ashmawy, Ashraf M.

doi:10.21608/ejchem.2022.142387.6224

Cited by 4 publications

(4 citation statements)

References 30 publications

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“…Thermostat-controlled experiments were conducted at constant temperatures of 298, 303, 313, and 323 K in freshly produced solutions. The corrosion rate (CR) was calculated using the weight loss 39 .…”

Section: Methodsmentioning

confidence: 99%

Corrosion inhibition of mild steel in 1 M HCl by pyrazolone-sulfonamide hybrids: synthesis, characterization, and evaluation

Ashmawy,

Mostafa,

Kamal

et al. 2023

Sci Rep

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Carbon steel is widely used in the petroleum industry for pipelines, storage tanks, and equipment due to its mechanical properties, and strength. However, challenges such as environmental conditions and corrosive materials can affect its lifespan and require maintenance and repair. This work aimed to prepare pyrazalone-sulfonamide hybrids, and confirmed by mass spectra, FTIR, 1H-NMR, and 13C-NMR. These compounds were examined as mild steel corrosion inhibitors in 1 M HCl solutions at 298–323 K using the gravimetric technique, electrochemical measurements, scanning electronic microscope analysis, and quantum chemical calculations. The values of inhibitory efficiency identified by electrochemical and non-electrochemical techniques exhibit good agreement. At various temperatures and in the 50 to 500 ppm concentration range. During the adsorption process, these substances connect to the Langmuir adsorption isotherm. Some adsorption isotherm and kinetic parameters have been developed and discussed. The metal surface had a thin inhibitory protective layer, according to investigations using energy dispersive X-ray spectroscopy (EDX) and scanning electron microscope (SEM). These findings demonstrated the potential of pyrazolone-sulfonamide as effective organic corrosion inhibitors for carbon steel.

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Section: Methodsmentioning

confidence: 99%

Corrosion inhibition of mild steel in 1 M HCl by pyrazolone-sulfonamide hybrids: synthesis, characterization, and evaluation

Ashmawy,

Mostafa,

Kamal

et al. 2023

Sci Rep

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show abstract

“…After being cleaned with acetone, rinsed with distilled water, polished with aluminium oxide sheets of varying grades (300–2000), and given a brief opportunity to dry before being submerged in the test solution, the working electrode was put through a series of steps. PP measurements were carried out in accordance with standard working practices utilizing a Gamry Potentiostat Reference 3000-Model number and corrosion software 9 , 31 , 32 .…”

Section: Methodsmentioning

confidence: 99%

“…Organic corrosion inhibitors are one of the finest choices because of their relatively low price, high corrosion inhibition efficiency, and environmentally friendly behaviour 6 . In general, literatures reported that heterocyclic compounds with conjugated double bonds and polar groups, such as sulphur, nitrogen, oxygen are effective inhibitors of iron corrosion 7 – 9 . These substances work by binding the metal surface via chemisorption, physisorption, complexation, or precipitation to block oxygen from reaching the cathode, block hydrogen from diffusing from the cathode, or block metal dissolution (anodic inhibitors) 10 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, description, and application of novel corrosion inhibitors for CS AISI1095 in 1.0 M HCl based on benzoquinoline derivatives

Sayed,

Ashmawy,

Elgammal

et al. 2023

Sci Rep

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This study aims to synthesize and evaluate the corrosion inhibition properties of three newly prepared organic compounds based on benzo[h]quinoline hydrazone derivatives. The compounds structure were characterised using FTIR, 1H-NMR, 13C-NMR and Mass spectroscopy. Electrochemical methods, including Potentiodynamic Polarization (PP), Electrochemical Frequency Modulation (EFM), and Electrochemical Impedance Spectroscopy (EIS) were employed to evaluate the compounds as corrosion inhibitors in HCl (1.0 M) for carbon steel (CS). Additionally, surface examination techniques such as scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) were used to investigate the surface morphology and elemental composition of the CS before and after exposure to the synthesized compounds. The electrochemical measurements showed that compound VII achieved corrosion inhibition efficiency. SEM and EDX analysis further confirmed the creation of a passive film on the CS surface. These findings demonstrated the potential of benzo[h]quinoline hydrazone derivatives as effective organic corrosion inhibitors for CS in aggressive solution.

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“…Thermostat-controlled experiments were conducted at constant temperatures of 298, 303, 313, and 323 K in freshly produced solutions. The corrosion rate was calculated using the weight loss [39].…”

Section: Gravimetric Techniquementioning

confidence: 99%

Study corrosion inhibitor for mild steel in 1M HCl by pyrazolone-sulfonamide hybrids: Synthesis, characterization evaluation as corrosion inhibitors

Ashmawy,

Mostafa,

Kamal

et al. 2023

Preprint

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Carbon steel is widely used in the petroleum industry for pipelines, storage tanks, and equipment due to its mechanical properties, and strength. However, challenges such as environmental conditions and corrosive materials can affect its lifespan and require maintenance and repair. This work aimed to prepare pyrazalone-sulfonamide hybrids, and confirmed by mass spectra, FTIR, 1H-NMR, and 13C-NMR.These compounds were examined as mild steel corrosion inhibitors in 1 M HCl solutions at 298–323 K using the gravimetric technique, electrochemical measurement, scanning electronic microscope analysis, and quantum chemical calculations. The values of inhibitory efficiency identified by electrochemical and non-electrochemical techniques exhibit good agreement. At various temperatures and in the 50 to 500 ppm concentration range. During the adsorption process, these substances connect to the Langmuir adsorption isotherm. Some adsorption isotherm and kinetic parameters have been developed and discussed. The metal surface had a thin inhibitory protective layer, according to investigations using energy dispersive X-ray spectroscopy (EDX) and scanning electron microscope (SEM). These findings demonstrated the potential of pyrazolone-sulfonamide as effective organic corrosion inhibitors for Carbon Steel. in aggressive solution.

show abstract

Chemical and Electrochemical Investigation of a Novel Liquid Crystal as an Anticorrosion Agent for Mild Steel in Acidic Media

Cited by 4 publications

References 30 publications

Corrosion inhibition of mild steel in 1 M HCl by pyrazolone-sulfonamide hybrids: synthesis, characterization, and evaluation

Corrosion inhibition of mild steel in 1 M HCl by pyrazolone-sulfonamide hybrids: synthesis, characterization, and evaluation

Synthesis, description, and application of novel corrosion inhibitors for CS AISI1095 in 1.0 M HCl based on benzoquinoline derivatives

Study corrosion inhibitor for mild steel in 1M HCl by pyrazolone-sulfonamide hybrids: Synthesis, characterization evaluation as corrosion inhibitors

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