ELECTRODEPOSITION OF COBALT NANOCLUSTERS FROM AMMONICAL CHLORIDE SOLUTIONS ONTO HOPG ELECTRODES. A KINETICAL AND MORPHOLOGICAL STUDY

ABSTRACT A kinetical study about the Co electrodeposition onto Highly Oriented Pyrolytic Graphite electrodes from an aqueous solution containing 0.01 M CoCl2 + 1 M NH4CI (pH = 7) was conducted at overpotential conditions through potentiostatic studies. The entire chronoamperograms were adequately pr...

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Autores principales:	HUIZAR,L. H. MENDOZA, RIOS-REYES,C. H., RIVERA,M.
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2017
Materias:	cobalt nanoclusters HOPG kinetics AFM MFM
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000303621
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spelling	oai:scielo:S0717-970720170003036212017-09-08ELECTRODEPOSITION OF COBALT NANOCLUSTERS FROM AMMONICAL CHLORIDE SOLUTIONS ONTO HOPG ELECTRODES. A KINETICAL AND MORPHOLOGICAL STUDYHUIZAR,L. H. MENDOZARIOS-REYES,C. H.RIVERA,M. cobalt nanoclusters HOPG kinetics AFM MFM ABSTRACT A kinetical study about the Co electrodeposition onto Highly Oriented Pyrolytic Graphite electrodes from an aqueous solution containing 0.01 M CoCl2 + 1 M NH4CI (pH = 7) was conducted at overpotential conditions through potentiostatic studies. The entire chronoamperograms were adequately predicted, considering the contribution to the total current of three different processes: a Langmuir-type adsorption process, a three-dimensional nucleation and growth and a proton reduction process. In all cases, the nucleation rate and the number of active nucleation sites are potential dependent. The Atomic Force Microscopy study revealed the presence of homogeneous cobalt clusters of less of 100 nm in height and 50 nm in diameter at different potential values.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.62 n.3 20172017-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000303621en10.4067/s0717-97072017000303621
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	cobalt nanoclusters HOPG kinetics AFM MFM
spellingShingle	cobalt nanoclusters HOPG kinetics AFM MFM HUIZAR,L. H. MENDOZA RIOS-REYES,C. H. RIVERA,M. ELECTRODEPOSITION OF COBALT NANOCLUSTERS FROM AMMONICAL CHLORIDE SOLUTIONS ONTO HOPG ELECTRODES. A KINETICAL AND MORPHOLOGICAL STUDY
description	ABSTRACT A kinetical study about the Co electrodeposition onto Highly Oriented Pyrolytic Graphite electrodes from an aqueous solution containing 0.01 M CoCl2 + 1 M NH4CI (pH = 7) was conducted at overpotential conditions through potentiostatic studies. The entire chronoamperograms were adequately predicted, considering the contribution to the total current of three different processes: a Langmuir-type adsorption process, a three-dimensional nucleation and growth and a proton reduction process. In all cases, the nucleation rate and the number of active nucleation sites are potential dependent. The Atomic Force Microscopy study revealed the presence of homogeneous cobalt clusters of less of 100 nm in height and 50 nm in diameter at different potential values.
author	HUIZAR,L. H. MENDOZA RIOS-REYES,C. H. RIVERA,M.
author_facet	HUIZAR,L. H. MENDOZA RIOS-REYES,C. H. RIVERA,M.
author_sort	HUIZAR,L. H. MENDOZA
title	ELECTRODEPOSITION OF COBALT NANOCLUSTERS FROM AMMONICAL CHLORIDE SOLUTIONS ONTO HOPG ELECTRODES. A KINETICAL AND MORPHOLOGICAL STUDY
title_short	ELECTRODEPOSITION OF COBALT NANOCLUSTERS FROM AMMONICAL CHLORIDE SOLUTIONS ONTO HOPG ELECTRODES. A KINETICAL AND MORPHOLOGICAL STUDY
title_full	ELECTRODEPOSITION OF COBALT NANOCLUSTERS FROM AMMONICAL CHLORIDE SOLUTIONS ONTO HOPG ELECTRODES. A KINETICAL AND MORPHOLOGICAL STUDY
title_fullStr	ELECTRODEPOSITION OF COBALT NANOCLUSTERS FROM AMMONICAL CHLORIDE SOLUTIONS ONTO HOPG ELECTRODES. A KINETICAL AND MORPHOLOGICAL STUDY
title_full_unstemmed	ELECTRODEPOSITION OF COBALT NANOCLUSTERS FROM AMMONICAL CHLORIDE SOLUTIONS ONTO HOPG ELECTRODES. A KINETICAL AND MORPHOLOGICAL STUDY
title_sort	electrodeposition of cobalt nanoclusters from ammonical chloride solutions onto hopg electrodes. a kinetical and morphological study
publisher	Sociedad Chilena de Química
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000303621
work_keys_str_mv	AT huizarlhmendoza electrodepositionofcobaltnanoclustersfromammonicalchloridesolutionsontohopgelectrodesakineticalandmorphologicalstudy AT riosreyesch electrodepositionofcobaltnanoclustersfromammonicalchloridesolutionsontohopgelectrodesakineticalandmorphologicalstudy AT riveram electrodepositionofcobaltnanoclustersfromammonicalchloridesolutionsontohopgelectrodesakineticalandmorphologicalstudy
_version_	1714200915601260544

ELECTRODEPOSITION OF COBALT NANOCLUSTERS FROM AMMONICAL CHLORIDE SOLUTIONS ONTO HOPG ELECTRODES. A KINETICAL AND MORPHOLOGICAL STUDY

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