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Abstract:

The corrosion inhibition mechanism of the N-[2-[(2-aminoethyl)amino]ethyl]-9-octadecenamide on mild steel surface in CO2-saturated 5% NaCl solution has been studied. The inhibition efficiency decreases with increasing temperature. Adsorption of the inhibitor studied is found to follow the Frumkin adsorption isotherm. EIS results show that the mechanism of its corrosion inhibition at concentrations higher than critical micelle concentration is by forming a protective porous bi-layer. The activation energy, thermodynamic parameters and electrochemical results reveal a change in the adsorption mode of the inhibitor studied: the inhibitor could primarily be physically adsorbed at low concentrations, while chemisorption is favoured as concentration increases. © 2011 Elsevier Ltd.

Registro:

Documento: Artículo
Título:The effect of temperature and concentration on the corrosion inhibition mechanism of an amphiphilic amido-amine in CO2 saturated solution
Autor:Desimone, M.P.; Gordillo, G.; Simison, S.N.
Filiación:División Corrosión, INTEMA-CONICET, UNMdP, Juan B. Justo 4302, B7608FDQ Mar del Plata, Argentina
INQUIMAE (CONICET) - DQIAQF - Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, Buenos Aires, Argentina
Palabras clave:A. Mild steel; B. EIS; B. Polarization; Adsorption modes; Amphiphilics; B. EIS; Bi-layer; Corrosion inhibition; Corrosion inhibition mechanism; Effect of temperature; Frumkin adsorption isotherms; Inhibition efficiency; Low concentrations; Mild-steel surfaces; NaCl solution; Saturated solutions; Thermodynamic parameter; Activation energy; Adsorption; Carbon dioxide; Carbon steel; Chemisorption; Critical micelle concentration; Electrochemical corrosion; Sodium chloride; Atmospheric composition
Año:2011
Volumen:53
Número:12
Página de inicio:4033
Página de fin:4043
DOI: http://dx.doi.org/10.1016/j.corsci.2011.08.009
Título revista:Corrosion Science
Título revista abreviado:Corros. Sci.
ISSN:0010938X
CODEN:CRRSA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0010938X_v53_n12_p4033_Desimone

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Citas:

---------- APA ----------
Desimone, M.P., Gordillo, G. & Simison, S.N. (2011) . The effect of temperature and concentration on the corrosion inhibition mechanism of an amphiphilic amido-amine in CO2 saturated solution. Corrosion Science, 53(12), 4033-4043.
http://dx.doi.org/10.1016/j.corsci.2011.08.009
---------- CHICAGO ----------
Desimone, M.P., Gordillo, G., Simison, S.N. "The effect of temperature and concentration on the corrosion inhibition mechanism of an amphiphilic amido-amine in CO2 saturated solution" . Corrosion Science 53, no. 12 (2011) : 4033-4043.
http://dx.doi.org/10.1016/j.corsci.2011.08.009
---------- MLA ----------
Desimone, M.P., Gordillo, G., Simison, S.N. "The effect of temperature and concentration on the corrosion inhibition mechanism of an amphiphilic amido-amine in CO2 saturated solution" . Corrosion Science, vol. 53, no. 12, 2011, pp. 4033-4043.
http://dx.doi.org/10.1016/j.corsci.2011.08.009
---------- VANCOUVER ----------
Desimone, M.P., Gordillo, G., Simison, S.N. The effect of temperature and concentration on the corrosion inhibition mechanism of an amphiphilic amido-amine in CO2 saturated solution. Corros. Sci. 2011;53(12):4033-4043.
http://dx.doi.org/10.1016/j.corsci.2011.08.009