Inhibition effect of two mercaptopyrimidine derivatives on cold rolled steel in HCl solution

Li, Xianghong; Xie, Xiaoguang; Deng, Shuduan; Du, Guanben

doi:10.1016/j.corsci.2014.11.044

Cited by 60 publications

(5 citation statements)

References 36 publications

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“…It can be found that the increase of acid concentration resulted in decrease of inhibition efficiency gradually, and the minimum inhibition efficiency in 2.0 M HCl is 90.92%. A similar result has been reported in the literature [19]. Figure 6.…”

Section: Potentiodynamic Polarization Measurementssupporting

confidence: 91%

A Study of N,N-Diethylammonium O,O′-Di(p-methoxyphenyl)dithiophosphate as New Corrosion Inhibitor for Carbon Steel in Hydrochloric Acid Solution

Lai

Xie

Liu

et al. 2016

International Journal of Corrosion

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N,N-Diethylammonium O,O′-di(p-methoxyphenyl)dithiophosphate (EAPP) as a new corrosion inhibitor was synthesized in the present work. The corrosion inhibition of EAPP in hydrochloric acid for carbon steel was evaluated by potentiodynamic polarization measurements, electrochemical impedance spectroscopy, weight loss measurements, and scanning electron microscopy. The results indicate that the EAPP is mixed type inhibitor, and the adsorption of EAPP on carbon steel surface obeys Langmuir isotherm. In addition, the inhibition efficiency increases with increasing the concentration of inhibitor and decreases with increasing the hydrochloric acid concentration, temperature, and storage time.

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Section: Potentiodynamic Polarization Measurementssupporting

confidence: 91%

A Study of N,N-Diethylammonium O,O′-Di(p-methoxyphenyl)dithiophosphate as New Corrosion Inhibitor for Carbon Steel in Hydrochloric Acid Solution

Lai

Xie

Liu

et al. 2016

International Journal of Corrosion

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show abstract

“…The inductive loop appearing in the low frequency domain can be related to the relaxation process of -Cl ads or + H ads on the aluminum surface [38]. Additionally, the shapes of the EIS diagrams for both the bare and superhydrophobic aluminum corrosion in a 3.5 wt% NaCl solution are similar, which means that the corrosion mechanism is not changed after the superhydrophobic modification of the aluminum surface [39].…”

Section: Resultsmentioning

confidence: 97%

Corrosion inhibition by a superhydrophobic surface on aluminum that was prepared with a facile electrochemical route

Chen

2020

Mater. Res. Express

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A superhydrophobic surface featuring high roughness and low surface energy is designed for effective corrosion protection on aluminum via a facile and cost-effective electrochemical route. The effects of the electrolyte composition and electrodeposition time on the surface wettability were investigated. Moreover, the corrosion resistance performance of the as-prepared superhydrophobic aluminum surface was studied using electrochemical impedance spectroscopy and electrochemical noise techniques. The results show that the superhydrophobic aluminum surface obtained at 2 V for 20 min has a high static water contact angle of 155.8°. Both the average corrosion rate and pitting intensity are remarkably inhibited by the as-prepared superhydrophobic surface on aluminum. Moreover, the static water contact angle for the obtained superhydrophobic surface remains above 150°after exposure to 3.5 wt% NaCl solution for 30 days. This facile and economical superhydrophobic surface, with its excellent anti-corrosion property and stability, shows significant potential for use in industrial applications.

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“…The surface charge properties of metal can be obtained by comparing the difference between potential of zero charge (E PZC ) and E ocp . [43,44] The value of E ocp and E pzc were given in the Figure 19. In 1 M HCl solution, the E ocp value of carbon steel was À 0.47 V and the value of E pzc was À 0.55 V. When E ocp -E pzc > 0, the surface of electrode was positive.…”

Section: Corrosion Inhibition Mechanismmentioning

confidence: 99%

1‐Vinyl‐3‐allyl Imidazolium Bromide as a New Corrosion Inhibitor for Carbon Steel in 1 M HCl Solution

Chen

Yang

2020

ChemistrySelect

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The performance of 1-vinyl-3-allyl imidazolium bromide ([VAIM] [Br]) for inhibiting the corrosion of carbon steel in 1 M HCl solution from 298 K to 338 K was assessed. Electrochemical impedance spectroscopy (EIS) measurements proved that the inhibition efficiency (η) of [VAIM][Br] was as high as 95 %, and after immersion of 144 h, η still kept more than 90 %. Polarization curve verified that [VAIM][Br] acted as a mixed-type inhibitor and adsorption of [VAIM][Br] was found to obey Langmuir adsorption isotherm. Molecular dynamic simulations suggested that the addition of vinyl group increased interaction energy between [VAIM] + and (0 0 1) plane of Fe from 43.92 kcal mol À 1 to 71.98 kcal mol À 1. Liquid chromatographymass spectrometry (LC-MS) and UV-vis spectrum demonstrated that [VAIM][Br] and Fe atom can form stable complex (Fe 2 (VAIM) 2 Br 4), which hindered the corrosion of carbon steel.

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Inhibition effect of two mercaptopyrimidine derivatives on cold rolled steel in HCl solution

Cited by 60 publications

References 36 publications

A Study of N,N-Diethylammonium O,O′-Di(p-methoxyphenyl)dithiophosphate as New Corrosion Inhibitor for Carbon Steel in Hydrochloric Acid Solution

A Study of N,N-Diethylammonium O,O′-Di(p-methoxyphenyl)dithiophosphate as New Corrosion Inhibitor for Carbon Steel in Hydrochloric Acid Solution

Corrosion inhibition by a superhydrophobic surface on aluminum that was prepared with a facile electrochemical route

1‐Vinyl‐3‐allyl Imidazolium Bromide as a New Corrosion Inhibitor for Carbon Steel in 1 M HCl Solution

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