Effective prevention of structure II gas hydrate formation using the newly synthesized kinetic inhibitors

Gnezdilov, Dmitriy; Varfolomeev, Mikhail; Farhadian, Abdolreza; Pavelyev, Roman; Semenov, Matvei; Chirkova, Yulia; Nazarychev, Sergei; Balachina, Ekaterina; Semenov, Anton; Stoporev, Andrey

doi:10.1016/j.ces.2024.119986

Cited by 6 publications

(1 citation statement)

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“…The length of alkyl chain and steric hindrance are two main factors that can affect the inhibition performances. Longer alkyl chains give more effective inhibition properties 11 , 49 . Besides, increasing steric hindrance lowers the protective properties of inhibitors.…”

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%