Journal
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
Volume 58, Issue 5, Pages 362-368Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/maco.200604015
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The influence of some organic additives on the anodic behaviour of a carbon steel electrode in contact with alkaline aqueous solutions was studied by in situ Fourier transform infrared (FT-IR) spectroscopy. FT-IR spectroscopy allows to obtain information at the molecular level regarding the metal-electrolyte interface. The following molecules have been considered: (i) benzyldimethylphenyl-ammonium chloride (BDMPAC), (ii) glutamic acid, (iii) triethyle- netetramine (TETA), (iv) sodium tartrate and (v) sodium benzoate. Potential-dependent spectra have been recorded for the different investigated systems. Quantitative information about the formation kinetics of corrosion products was derived by numerical analysis of the peak area as a function of the applied potential for the different systems investigated.
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