Carboxamide derivatives as new corrosion inhibitors for mild steel protection in hydrochloric acid solution

Erami, Roghayeh Sadeghi; Amirnasr, Mehdi; Meghdadi, Soraia; Talebian, Milad; Farrokhpour, Hossein; Raeissi, K.

doi:10.1016/j.corsci.2019.02.019

Cited by 176 publications

(34 citation statements)

References 53 publications

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“…EIS can not only quickly analyze the corrosion resistance of the electrode surface, but also obtain the specific electrochemical information of electrodes. [ 18 ] The magnitude of the capacitive reactance arc in high‐frequency region can reflect the shielding performance and dielectric performance of the film, namely the anticorrosion performance, while that in low frequency can reflect the corrosion process and provide information about the metal/solution interface. [ 19 ]…”

Section: Methodsmentioning

confidence: 99%

Investigation of a hydrophobically associating AMAHS polyacrylamides: A new corrosion inhibitor for mild steel in HCl

Rao

Zhang

et al. 2020

Materials & Corrosion

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A polyacrylamide with capsaicin‐derived monomers (AM–MAA–AMPS–HMBA–SMA; AMAHS) was synthesized and investigated as a novel environment‐friendly polymer inhibitor for Q235 mild steel at 25°C in 1 M HCl solution. The inhibition efficiency was evaluated by weight loss measurements, electrochemical experiments, and surface investigation methods as well as by theoretical calculations. Experimental results indicated that the efficiency of AMAHS was up to 94.86% at the concentration of 2 g/L. Electrochemical tests and surface morphology analysis showed that AMAHS served as a mixed‐type corrosion inhibitor, which could be adsorbed and self‐assembled on the surface of mild steel forming a highly hydrophobic protective film (contact angle of 172°). Density functional theory calculations revealed that heteroatoms in AMAHS, such as O, N, S, are active sites in forming coordination bonds with surface iron atoms. In addition, hydrophobic groups played an important role in protecting the metal surfaces from corrosion media.

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Section: Methodsmentioning

confidence: 99%

Investigation of a hydrophobically associating AMAHS polyacrylamides: A new corrosion inhibitor for mild steel in HCl

Rao

Zhang

et al. 2020

Materials & Corrosion

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“…In order to ensure the reproducibility of the results, each test was performed three times. The inhibition efficiency of NCDs was calculated according to the Equations ( 1) and (2), where i corr is the corrosion current density and R p is the polarization resistance [27,28].…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

“…Hence, taking effective approaches to retard the acid corrosion of metals is of great significance. Usually, organic inhibitors including different active sites (e.g., heteroatoms (O, N, S and P), π bonds and polar functional groups) are employed to protect the steel from corrosion by forming an adsorbed film on the steel surface, which is because these active sites can promote the physical or chemical adsorption of inhibitors on the steel surface [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Effective Corrosion Inhibition of Carbon Steel in Hydrochloric Acid by Dopamine-Produced Carbon Dots

Cui

Zheng

2021

Polymers

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In present study, novel nitrogen doped carbon dots (NCDs) are synthesized using a green material—dopamine—as a precursor and studied as corrosion inhibitors for Q235 carbon steel in 1 M HCl solution. According to the electrochemical results, it is found that NCDs acting as a mixed-type corrosion inhibitor can effectively retard the acid corrosion of carbon steel, and their inhibition efficiency increases with the concentration increasing from 50 to 400 ppm. The highest inhibition efficiency is 96.1% in the presence of 400 ppm NCDs at room temperature. Additionally, the adsorption of NCDs obeys the Langmuir adsorption isotherm. In addition, weight loss results show that the inhibition efficiency in the presence of 400 ppm NCDs increases with prolonged exposure time and rising temperature (298–328 K), owing to the strong adsorption of NCDs on the steel surface, and the η value is 92.2% at 60 h of immersion and 86.2%, 89.1%, 90.6% and 92.9% at 298, 308, 318 and 328 K, respectively. Surface analysis by scanning electron microscope (SEM), laser scanning confocal microscope (LSCM) and X-ray photoelectron spectroscopy (XPS) further proves the formation of a protective NCD film on the steel surface.

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“…Authors utilized electrochemical impedance spectroscopy and potentiodynamic polarization techniques and concluded that the inhibitors belonged to the mixed type. Best results were obtained with oleoylsarcosine (C-18) with 99.6% and 97.4% for the two different steel typesfollowed by myristoyl (C- Roghayeh Sadeghi Erami and co-workers [39] described anti corrosion properties exhibited by carboxamide ligands (N-(quinolin-8-yl)quinoline-2-carboxamide (Hqcq) and N-(quinolin-7-yl)pyrazine-2-carboxamide (Hqpzc) (Fig. 21)in presence of 1 M HCl solution at 25 o C for mild steel surfaces.…”

Section: Structure Of N-(furan-2ylmethyl)-7-h-purin-6-aminementioning

confidence: 99%

Green Organic Inhibitors for Corrosion Protection

Nageswar

2021

Sustainable Corrosion Inhibitors

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Plants are a rich source of different varied organic compounds. Due to the important applications of naturally occurring chemicals their derivatives are also pursued for modifying and potentiating the activities of natural products. Metallic corrosion is a natural process resulting in heavy losses in various fields. Non hazardous and non toxic corrosion inhibitors gained significance due to the environmental regularities and guidelines issued in the course of saving the pristine nature of environment and to maintain the sustainability of our earth. Green corrosion inhibitors play a potential role for the above said cause. Recent research contributions on green corrosion inhibitors from the active researchers in the concerned expertise are presented briefly here to give an idea about the current research activity across the world.

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Carboxamide derivatives as new corrosion inhibitors for mild steel protection in hydrochloric acid solution

Cited by 176 publications

References 53 publications

Investigation of a hydrophobically associating AMAHS polyacrylamides: A new corrosion inhibitor for mild steel in HCl

Investigation of a hydrophobically associating AMAHS polyacrylamides: A new corrosion inhibitor for mild steel in HCl

Effective Corrosion Inhibition of Carbon Steel in Hydrochloric Acid by Dopamine-Produced Carbon Dots

Green Organic Inhibitors for Corrosion Protection

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