Codeposition of Particles: Role of Adsorption of the Electroactive Species

Cu-Al2O3 composite coatings were obtained from a 0.2 M Cu2+ and 0.6 M monosodium glutamate electrolyte whose pH was adjusted at different values in the 3–10 range. Particle charging behavior was studied through ζ-potential measurements and the potential of zero charge of the electrode was determined...

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Autores principales: Bengoa, Leandro Nicolás, Pary, Paola, Egli, Walter Alfredo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ingeniería Química
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/153871
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-153871
record_format dspace
spelling I19-R120-10915-1538712023-06-02T20:08:51Z http://sedici.unlp.edu.ar/handle/10915/153871 issn:0013-4651 Codeposition of Particles: Role of Adsorption of the Electroactive Species Bengoa, Leandro Nicolás Pary, Paola Egli, Walter Alfredo 2016 2023-06-02T17:34:03Z en Ingeniería Química Cu-Al2O3 composite coatings were obtained from a 0.2 M Cu2+ and 0.6 M monosodium glutamate electrolyte whose pH was adjusted at different values in the 3–10 range. Particle charging behavior was studied through ζ-potential measurements and the potential of zero charge of the electrode was determined using Electrochemical Impedance Spectroscopy. Scanning Electron Microscopy was used to characterize coatings surface and to detect particle incorporation. The wt% of alumina in the deposits was estimated using Energy Dispersive Spectroscopy performed on their cross section. Under these experimental conditions high incorporation of particles into the copper matrix was observed, which was ascribed to the increased Cu2+ adsorption on Al2O3 surface induced by the presence of glutamate in the electrolyte. It was found that hydration forces strongly influence the codeposition of particles as proposed by Fransaer et al. The results were used to identify the relevant steps in the process and to develop a semi-empirical model Centro de Investigación y Desarrollo en Tecnología de Pinturas Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf D780-D786
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Química
spellingShingle Ingeniería Química
Bengoa, Leandro Nicolás
Pary, Paola
Egli, Walter Alfredo
Codeposition of Particles: Role of Adsorption of the Electroactive Species
topic_facet Ingeniería Química
description Cu-Al2O3 composite coatings were obtained from a 0.2 M Cu2+ and 0.6 M monosodium glutamate electrolyte whose pH was adjusted at different values in the 3–10 range. Particle charging behavior was studied through ζ-potential measurements and the potential of zero charge of the electrode was determined using Electrochemical Impedance Spectroscopy. Scanning Electron Microscopy was used to characterize coatings surface and to detect particle incorporation. The wt% of alumina in the deposits was estimated using Energy Dispersive Spectroscopy performed on their cross section. Under these experimental conditions high incorporation of particles into the copper matrix was observed, which was ascribed to the increased Cu2+ adsorption on Al2O3 surface induced by the presence of glutamate in the electrolyte. It was found that hydration forces strongly influence the codeposition of particles as proposed by Fransaer et al. The results were used to identify the relevant steps in the process and to develop a semi-empirical model
format Articulo
Articulo
author Bengoa, Leandro Nicolás
Pary, Paola
Egli, Walter Alfredo
author_facet Bengoa, Leandro Nicolás
Pary, Paola
Egli, Walter Alfredo
author_sort Bengoa, Leandro Nicolás
title Codeposition of Particles: Role of Adsorption of the Electroactive Species
title_short Codeposition of Particles: Role of Adsorption of the Electroactive Species
title_full Codeposition of Particles: Role of Adsorption of the Electroactive Species
title_fullStr Codeposition of Particles: Role of Adsorption of the Electroactive Species
title_full_unstemmed Codeposition of Particles: Role of Adsorption of the Electroactive Species
title_sort codeposition of particles: role of adsorption of the electroactive species
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/153871
work_keys_str_mv AT bengoaleandronicolas codepositionofparticlesroleofadsorptionoftheelectroactivespecies
AT parypaola codepositionofparticlesroleofadsorptionoftheelectroactivespecies
AT egliwalteralfredo codepositionofparticlesroleofadsorptionoftheelectroactivespecies
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