Corrosion inhibition of P110 carbon steel useful for casing and tubing applications in 3.5% NaCl solution using quaternary ammonium-based copolymers

Mubarak, Ghadeer; Verma, Chandrabhan; AJ Mazumder, Mohammad; Barsoum, Imad; Alfantazi, Akram

doi:10.1016/j.molliq.2024.124691

Cited by 5 publications

(1 citation statement)

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“…In this equation, the R ct(inh) and R ct are the charge transfer resistances in the presence of inhibitor and without inhibitor, respectively. The protective layer results in a decrease in the rate of charge transfer (electron exchange) between metallic surface and the electrolyte and causes an increase in inhibition efficiency 33 , 46 , 47 . Thus, a significant increase in R ct and a remarkable decrease in C dl values in the inhibited solutions compared with the values for samples corroded in blank are observed in Table 2 .…”

Section: Resultsmentioning

confidence: 99%

Prolonged corrosion protection via application of 4-ferrocenylbutyl saturated carboxylate ester derivatives with superior inhibition performance for mild steel

Jamali,

Moradi-Alavian,

Asghari

et al. 2024

Sci Rep

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A series of 4-ferrcenylbutyl carboxylate esters with different alkyl chain length (C2-C4) of carboxylic acids were synthesized using Fe3O4@SiO2@(CH2)3-Im-bisEthylFc[I] nanoparticles as catalyst and have been characterized with FT-IR, 1H NMR, and 13C NMR. Ferrocenyl-based esters were used as corrosion inhibitors of mild steel in the 1M HCl solution as corrosive media. The corrosion inhibition efficiency of the synthesized ferrocenyl-based esters has been assessed by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), atomic force microscopy (AFM), and scanning electron microscopy (SEM). The 4-ferrocenylbutyl propionate showed a more effective corrosion inhibition behavior among the studied esters with 96% efficiency after immersion in the corrosive media for 2 weeks. The corrosion inhibition mechanism is dominated by formation of passive layer of inhibitor on the surface of the mild steel by adsorption. Moreover, the adsorption characteristics of 4-butylferrcenyl carboxylate esters on mild steel were thoroughly explored using density functional theory calculations. It was found that the Fe atoms located around the C impurity in the mild steel are the most efficient and active sites to adsorb 4-butylferrcenyl carboxylate esters.

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Section: Resultsmentioning

confidence: 99%