An in situ FT-IR evaluation of candidate organic corrosion inhibitors for carbon steel in contact with alkaline aqueous solutions

被引:9
作者
Bozzini, B. [1 ]
Mele, C. [1 ]
Romanello, V. [1 ]
机构
[1] Univ Lecce, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy
来源
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2007年 / 58卷 / 05期
关键词
D O I
10.1002/maco.200604015
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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.
引用
收藏
页码:362 / 368
页数:7
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