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Abstract:

Electrodeposition of a metal can produce aggregates with very irregular morphologies, in particular dendrites. In order to better understand these phenomena, we studied the preliminary stage of copper growth from copper sulfate by in situ optical experiments and impedance spectroscopy. Experiments were performed in a thin layer cell put in a vertical position, with cathode on top. Using a vertical cell instead of a horizontal one tends to stabilize the electrochemical system. The concentration measured by optical absorption is in agreement with theoretical prediction at the onset of polarization. Close to the limiting current density, oscillations were observed in the cell voltage. Impedance spectra could be fitted either using a simple equivalent circuit at low current density, or more complex calculations at high current density. © 2007.

Registro:

Documento: Artículo
Título:Experimental and theoretical study of the onset of the growth of an irregular metal electrodeposit
Autor:González, G.; Rosso, M.; Chassaing, E.; Chazalviel, J.-N.
Filiación:Laboratoire de Physique de la Matière Condensée, CNRS-Ecole Polytechnique, F91128 Palaiseau Cedex, France
Laboratorio de Sistemas Complejos, Departamento de Computación, Facultad de Ciencias, Exactas y Naturales, 1428 Buenos Aires, Argentina
IRDEP, EDF R and D, 6 Quai Watier, 78401 Chatou, France
Palabras clave:Binary electrolyte; Electrodeposition; Limiting current density; Space charge; Current density; Dendrites (metallography); Electric space charge; Equivalent circuits; Polarization; Spectroscopy; Binary electrolyte; Copper sulfate; Electrochemical system; Irregular morphologies; Electrodeposition
Año:2007
Volumen:53
Número:1
Página de inicio:141
Página de fin:144
DOI: http://dx.doi.org/10.1016/j.electacta.2007.02.025
Título revista:Electrochimica Acta
Título revista abreviado:Electrochim Acta
ISSN:00134686
CODEN:ELCAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00134686_v53_n1_p141_Gonzalez

Referencias:

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Citas:

---------- APA ----------
González, G., Rosso, M., Chassaing, E. & Chazalviel, J.-N. (2007) . Experimental and theoretical study of the onset of the growth of an irregular metal electrodeposit. Electrochimica Acta, 53(1), 141-144.
http://dx.doi.org/10.1016/j.electacta.2007.02.025
---------- CHICAGO ----------
González, G., Rosso, M., Chassaing, E., Chazalviel, J.-N. "Experimental and theoretical study of the onset of the growth of an irregular metal electrodeposit" . Electrochimica Acta 53, no. 1 (2007) : 141-144.
http://dx.doi.org/10.1016/j.electacta.2007.02.025
---------- MLA ----------
González, G., Rosso, M., Chassaing, E., Chazalviel, J.-N. "Experimental and theoretical study of the onset of the growth of an irregular metal electrodeposit" . Electrochimica Acta, vol. 53, no. 1, 2007, pp. 141-144.
http://dx.doi.org/10.1016/j.electacta.2007.02.025
---------- VANCOUVER ----------
González, G., Rosso, M., Chassaing, E., Chazalviel, J.-N. Experimental and theoretical study of the onset of the growth of an irregular metal electrodeposit. Electrochim Acta. 2007;53(1):141-144.
http://dx.doi.org/10.1016/j.electacta.2007.02.025