XPS and Electrochemical Studies of Chromium Modified Passive Iron Electrodes

The modification of passive iron electrodes by chromate ion has been studied in three different electrochemical experiments: potentiostatic passivation, open-circuit passivation, and cyclic potential treatment. XPS surface composition and composition-depth profiles obtained by argon ion-sputtering o...

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Autor principal: Calve, E.J
Otros Autores: Pallotta, C.D
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1988
Acceso en línea:Registro en Scopus
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100 1 |a Calve, E.J. 
245 1 0 |a XPS and Electrochemical Studies of Chromium Modified Passive Iron Electrodes 
260 |c 1988 
506 |2 openaire  |e Política editorial 
504 |a Lumsden, J.B., Staehle, R.W., (1972) Scr. Metall., 6, p. 1205 
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504 |a Olefjord, I., (1980) Mater. Sci., Eng., 42, p. 161 
504 |a Olefjord, I., Elfstrom, B.O., (1982) Corrosion, 38, p. 46. , Houston 
504 |a Olefjord, I., Brox, B., Jelvestam, U., (1985) Journal of the Electrochemical Society, 132, p. 2854 
504 |a Asami, K., Hashimoto, K., Shimodara, S., (1976) Corros. Sci., 16, p. 387 
504 |a Asami, K., Hashimoto, H., (1977) Corros. Sci., 17, p. 559 
504 |a Asami, K., Hashimoto, H., Shimodara, S., (1978) Corros. Sci., 18, p. 151 
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504 |a McCafferty, E., Murday, J.S., Bernett, M.K., (1985) The Electrochemical Society Extended Abstracts, 85 (2), p. 245. , Abstract 156 Las Vegas, NV, Oct. 13-18 
504 |a Calvo, E.J., Pallotta, C.D., (1986) J. Eiectroanal. Chem., 198, p. 181 
504 |a Pallotta, C.D., Gonnet, R., Calvo, E.J., J. Eiectroanal. Chem., , Accepted for publication 
504 |a Intyre, N.S.M.C., Zetaruk, D.G., (1977) Anal. Chem., 49, p. 1521. , C. Oviedo de Gonzalez, Ph.D. Thesis, Universidad Nacional de Cordoba, Argentina (1983 
504 |a Carlson, T.A., (1975) Photoelectron and Auger Spectroscopy, , Plenum Press, New York 
504 |a Tondeur, J.J., Dombret, A., Gierst, L., (1962) J. Electroanal. Chem., 3, p. 225 
504 |a Hara, N., Sugimoto, K., (1979) Journal of the Electrochemical Society, 120, p. 1328 
504 |a Allen, G.C., Curtis, M.T., Hopper, A.J., Tucker, P.M., (1974) J. Chem. Soc. (Dalton, 1526 
504 |a McBee, C.L., Kruger, J., (1972) Electrochim. Acta, 17, p. 1337 
504 |a Intyre, N.S.M.C., (1975) M. G. Cook, Anal. Chem., 47, p. 2208 
504 |a Tjong, S.C., Yeager, E., (1981) Journal of the Electrochemical Society, 128, p. 2251 
504 |a Todor, D.N., (1976) Thermal Analysis of Minerals, , Abacus Press, English Version, Tumbridge Wells, England 
504 |a Goetz, R., Mitchell, D.F., MacDougall, B., Graham, M.J., (1987) Journal of the Electrochemical Society, 134, p. 535 
504 |a Long, G.G., Kruger, J., Black, D.R., Kuriyama, M., (1983) J. Electroanal. Chem., 150, p. 603 
504 |a le Goff, H., Pallotta, C.D., preparation; Long, G.G., Kruger, J., Black, D.R., Kuriyama, M., (1983) Journal of the Electrochemical Society, 130, p. 240 
504 |a O'Grady, W.E., (1987) Journal of the Electrochemical Society, 127, p. 555 
504 |a Cotton, F.A., Wilkinson, G.W., (1980) Advanced Inorganic Chemistry. A Comprehensive Text, , 4th ed., Wiley, New York 
520 3 |a The modification of passive iron electrodes by chromate ion has been studied in three different electrochemical experiments: potentiostatic passivation, open-circuit passivation, and cyclic potential treatment. XPS surface composition and composition-depth profiles obtained by argon ion-sputtering of the modified electrodes show different patterns depending on the electrochemical treatment. Two electrokinetic pathways for the reduction of chromate associated with the different chromium concentration profiles in the film are also apparent and have been related to the reductive precipitation of hydrous Cr(III) species, and to the chromium redox centers entrapped in the passive layer. The latter permanent modification of the passive layer is only obtained by repetitive oxidation-reduction cycles of iron in alkaline chromate and has similarities with passive layers on Fe-Cr alloys. © 1988, The Electrochemical Society, Inc. All rights reserved.  |l eng 
593 |a Permanent Research Staff of the Argentine Science & Technology Research Council, Sector Electroquimica Apticada, Instituto Nacional de Tecnologia Industrial, c.c. 157, San Martin, 1650 Buenos Aires, Argentina 
593 |a Departamento de Quimica Inorganica, Analitica y Fisicoquimica, Facultad de Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, Pab II, 1428, Buenos Aires, Argentina 
593 |a Departamento de Materiales, Gerencia de Desarrollo, Comision Nacional de Energia Atomica, .Avenida Libertador 8250, 1429, Buenos Aires, Argentina 
690 1 0 |a CHEMICAL REACTIONS - REDOX 
690 1 0 |a CHROMIUM AND ALLOYS 
690 1 0 |a IRON AND ALLOYS - SURFACES 
690 1 0 |a SPECTROSCOPY, ELECTRON - APPLICATIONS 
690 1 0 |a SURFACES - SPECTROSCOPIC ANALYSIS 
690 1 0 |a CHROMATE 
690 1 0 |a CONCENTRATION DEPTH PROFILES 
690 1 0 |a ELECTROKINETIC PATHWAYS 
690 1 0 |a PASSIVATING LAYERS 
690 1 0 |a ELECTRODES 
700 1 |a Pallotta, C.D. 
773 0 |d 1988  |g v. 135  |h pp. 314-320  |k n. 2  |p J Electrochem Soc  |x 00134651  |w (AR-BaUEN)CENRE-38  |t Journal of the Electrochemical Society 
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