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Comparison of a Cationic Gemini Surfactant and the Corresponding Monomeric Surfactant for Corrosion Protection of Mild Steel in Hydrochloric Acid

M. Mahdavian ; Ali Reza Tehrani-Bagha (Institutionen för kemi- och bioteknik, Teknisk ytkemi) ; Krister Holmberg (Institutionen för kemi- och bioteknik, Teknisk ytkemi)
JOURNAL OF SURFACTANTS AND DETERGENTS (1097-3958). Vol. 14 (2011), 4, p. 605-613.
[Artikel, refereegranskad vetenskaplig]

A cationic gemini surfactant, N,N'-didodecyl-N,N,N',N'-tetramethyl-1,4-butanediammonium dibromide (12-4-12) and the corresponding monomeric surfactant dodecyltrimethylammonium bromide were compared with respect to corrosion inhibition efficiency in 1 M hydrochloric acid solution. Polarization and electrochemical impedance spectroscopy were used to evaluate corrosion inhibition. The 12-4-12 surfactant showed an extremely high corrosion inhibition efficiency at very low concentration. Surface tension measurements performed under the strongly acidic conditions revealed that the gemini surfactant is remarkably electrolyte tolerant, which is beneficial for adsorption at the steel surface.

Nyckelord: Acid inhibition, Mild steel, Polarization, EIS, Cationic surfactant



Denna post skapades 2011-10-14. Senast ändrad 2016-07-13.
CPL Pubid: 147233

 

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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Teknisk ytkemi (2005-2014)

Ämnesområden

Kemi

Chalmers infrastruktur