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Portugaliae Electrochimica Acta

versão impressa ISSN 0872-1904


KASILINGAM, T; THANGAVELU, C  e  PALANIVELA, V. Nano Analyses of Adsorbed Film onto Carbon Steel. Port. Electrochim. Acta [online]. 2014, vol.32, n.4, pp.259-270. ISSN 0872-1904.

The inhibition performance of a non-oxidising surfactant, namely cetyl trimethyl ammonium bromide (CTAB), and its co-adsorption behaviour with zinc ion on carbon steel in well water was studied by potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), weight loss, as well as atomic force microscopy (AFM) and scanning electron microscopy. Results indicated that the formulation acted as an anodic inhibitor. Adsorption of the used inhibitor led to a reduction in the double layer capacitance and an increase in the charge transfer resistance. A synergistic effect was also observed for the studied inhibitor with Zn2+ in weight loss measurements and electrochemical studies.

Palavras-chave : Weight loss; Electrochemical studies; AFM; SEM.

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