Corrosion Inhibition of Gemini Surfactant for Copper in 3.5% NaCl

Abstract:

A new gemini surfactant containing long chain alkyl ammonium headgroups have been used as corrosion inhinbitor for copper in 3.5% NaCl solution. The weight loss and electrochemical methods results showed that presence of inhibitor greatly decrease corrosion rate, gemini surfactant acted as an excellent corrosion inhibitor with inhibition efficiency greater than 96% at an optimum concentration of 30 mg·L^-1. X-ray photoelectron spectroscopy reveals that the gemini surfactant molecules adsorb onto the copper surface through the two ammonium head groups (N⁺).

• Periodical: Advanced Materials Research (Volume 936)
• Pages: 1125-1131
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.936.1125
• Online since: June 2014
• Authors: Kun Cao*, Hu Yuan Sun, Bao Rong Hou
• Keywords: Copper, Corrosion, Electrochemical, Gemini Surfactant, XPS

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