Imidazole and Al3+nano material as corrosion inhibitor for mild steel in hydrochloric acid solutions

Pragathiswaran, C.; Ramadevi, P.; Kumar, Kaushik

doi:10.1016/j.matpr.2020.08.671

Cited by 13 publications

(4 citation statements)

References 7 publications

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“…There is much research on mild steel anticorrosion compounds in corrosive environments 13 , such as organic compounds with structural moieties including tetrazoles, imidazoles, triazoles, quinolones, pyridines, Schiff bases, quaternary ammonium salts, and Mannich bases 23 – 30 . A particularly significant class of corrosion inhibitors utilized in the highly concentrated acidic environment is Schiff bases made from thiadiazoles and aldehydes 31 , 32 .…”

Section: Introductionmentioning

confidence: 99%

Corrosion inhibition properties of schiff base derivative against mild steel in HCl environment complemented with DFT investigations

Betti

Al-Amiery

Al‐Azzawi³

et al. 2023

Sci Rep

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There is growing interest in using corrosion inhibitors and protective treatments to limit the degradation of mild steel, leading to the development of numerous Schiff bases as cutting-edge inhibitors. In this study, the effectiveness of a Schiff base, 3-((5-mercapto-1,3,4-thiadiazol-2-yl)imino)indolin-2-one (MTIO), to prevent mild steel corrosion in HCl was investigated using weight loss measurements, potentiodynamic polarization measurements, electrochemical impedance spectroscopy techniques, and surface characterization. The experimental results showed that 0.5 mM MTIO exhibited a satisfactory inhibitor efficiency of 96.9% at 303 K. The MTIO molecules physically and chemically adsorbed onto the mild steel surface following the Langmuir model, forming a compact protective film attributed to the presence of a thiazole ring in the MTIO structure. Theoretical calculations were combined with experimental techniques to investigate the anticorrosion performance and mechanism of inhibition.

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Section: Introductionmentioning

confidence: 99%

Corrosion inhibition properties of schiff base derivative against mild steel in HCl environment complemented with DFT investigations

Betti

Al-Amiery

Al‐Azzawi³

et al. 2023

Sci Rep

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“…Therefore, organic corrosion inhibitors are one of the most promising methods to mitigate corrosion. Most organic corrosion inhibitors chiefly contain O, N, and S heteroatoms, aromatic rings, and multi-bonds, all of which can contribute to the lone pairs of electrons, allowing for stronger adsorption of the inhibitor molecule to the metal surface [6][7][8]. It can physically or chemically interact with the metal surface and adsorb firmly on the metal surface, thus forming a protective film that can isolate the corrosive medium [9].…”

Section: Introductionmentioning

confidence: 99%

“…Over the past few decades, several studies have been reported on the corrosion inhibition properties of organic corrosion inhibitors on mild steels under acidic conditions, including Mannich base [10,11], schiffine [12,13], pyridine [14,15], imidazole [6], quinoline [16,17], etc. Mannich base compounds have attracted abundant attention because of their aromatic rings, heteroatom structures, and good acid solubility.…”

Section: Introductionmentioning

confidence: 99%

Newly Synthesized Morpholinyl Mannich Bases as Corrosion Inhibitors for N80 Steel in Acid Environment

Chen

Zhuo

2022

Materials

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New Mannich bases, 3-morpholino-1-phenylpropan-1-one (MPO) and 3-morpholino-1-phenyl-3-(pyridin-4-yl) propan-1-one (MPPO), were synthesized, characterized, and studied as corrosion inhibitors for N80 steel in 1 M hydrochloric acid (HCl) solution using weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, and FT-IR spectroscopy. The inhibition efficiency increases with increasing inhibitor concentrations, and the corrosion inhibition efficiency of the MPO and MPPO could reach 90.3% and 91.4%, respectively, at a concentration of 300 ppm at 305 K. The effect of the temperature on the corrosion inhibition behavior of inhibitors was discussed. Electrochemical tests showed that the synthesized inhibitors are mixed. The EIS test results showed that the presence of MPO and MPPO reduced the double-layer capacitance in the corrosion process, thereby reducing the charge transfer resistance. The SEM and EDX results showed that the MPO and MPPO formed a uniform adsorption film on the surface of the N80 steel. The adsorption mechanism of the inhibitors was simulated with different adsorption models and the results showed that the inhibitors were the chemisorbed type. The results of the FT-IR spectroscopy proved that the inhibitor interacted with metal atoms on the steel surface.

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“…There has been a vast amount of research literature on corrosion inhibitors for mild steel in strong acid media . Organic molecules with structural moieties, such as imidazoles, tetrazoles, triazoles, pyridines, quinolones, Shiff bases, Mannich bases, and quaternary ammonium salts have been investigated to serve industrial demands. Among them, Mannich bases prepared from acetophenone, formaldehyde, and organic amine represent a very important type of corrosion inhibitors used in highly concentrated acid media and at high temperatures. , Unfortunately, conventional commercial inhibitors that work well in the hydrochloric acid system are unsatisfactory when used in lactic acid.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Corrosion Inhibition Performance of Mannich Bases on Mild Steel in Lactic Acid Media

Zhang

et al. 2022

ACS Omega

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Heterocyclic Mannich bases, N -(3-oxo-3-phenylpro-pyl)thiazol-2-aminium chloride (DTZA) and N -(3-oxo-3-phenylpropyl)-1 H -pyrazol-3-aminium chloride (DPZA), were developed for the corrosion inhibition of N80 steel in a 15 wt % lactic acid solution. Weight loss measurements, electrochemical techniques, surface characterization, and theoretical calculations were combined to investigate their anticorrosion performance and mechanism. The results showed that DTZA exhibited a satisfactory inhibitor efficiency of 97.56% with a dosage of 0.15% at 363 K, while DPZA achieved only 58.3% under the same conditions. Adsorptions of both inhibitors on the metal surface followed the Langmuir model with physical and chemical adsorptions. Based on X-ray photoelectronic spectroscopy (XPS) analysis, DFT calculations, and molecular dynamics (MD) simulations, stronger interactions between DTZA and iron than those in the case of DPZA were revealed, leading to the formation of a compact protective film on the metal surface, which is attributed to the presence of a thiazole ring in the DTZA chemical structure.

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Imidazole and Al3+nano material as corrosion inhibitor for mild steel in hydrochloric acid solutions

Cited by 13 publications

References 7 publications

Corrosion inhibition properties of schiff base derivative against mild steel in HCl environment complemented with DFT investigations

Corrosion inhibition properties of schiff base derivative against mild steel in HCl environment complemented with DFT investigations

Newly Synthesized Morpholinyl Mannich Bases as Corrosion Inhibitors for N80 Steel in Acid Environment

Synthesis and Corrosion Inhibition Performance of Mannich Bases on Mild Steel in Lactic Acid Media

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