Gemini surfactant as multifunctional corrosion and biocorrosion inhibitors for mild steel

PAKIET, M., KOWALCZYK, I., LEIVA GARCIA, R., MOORCROFT, R., NICHOL, Tim, SMITH, Thomas, AKID, R. and BRYCKI, B. (2019). Gemini surfactant as multifunctional corrosion and biocorrosion inhibitors for mild steel. Bioelectrochemistry, 128, 252-262.

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Biocorrosion is an important type of corrosion which leads to economic losses across oil and gas industries, due to increased monitoring, maintenance, and a reduction in platform availability. Ideally, a chemical compound engineered to mitigate against biocorrosion would possess both antimicrobial properties, as well as efficient corrosion inhibition. Gemini surfactants have shown efficacy in both of these properties, however there still remains a lack of electrochemical information regarding biocorrosion inhibition. The inhibition of corrosion and biocorrosion, by cationic gemini surfactants, of carbon steel was investigated. The results showed that the inhibition efficiency of the gemini surfactants was high (consistently >95%), even at low concentrations. Gemini surfactants also showed strong antimicrobial activity, with a minimum inhibitory concentration (0.018 mM). Corrosion inhibition was investigated by electrochemical impedance spectroscopy (EIS) and linear polarisation resistance (LPR), with biocorrosion experiments carried out in an anaerobic environment. Surface morphology was analysed using scanning electron microscopy (SEM).

Item Type: Article
Uncontrolled Keywords: Biocorrosion inhibitor; Carbon steel; Corrosion inhibitor; Gemini surfactant; 0306 Physical Chemistry (incl. Structural); 0601 Biochemistry and Cell Biology; Analytical Chemistry
Identification Number:
Page Range: 252-262
SWORD Depositor: Symplectic Elements
Depositing User: Symplectic Elements
Date Deposited: 17 Jun 2019 10:54
Last Modified: 18 Mar 2021 02:04

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