Deposition of colloidal hematite onto mercury from water-ethanol mixtures

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The adherence of hematite (αFe2O3) particles onto mercury electrodes in water-ethanol mixtures has been studied by counting using optical microscope images. The number of attached particles, when the ethanol content is small, decreases as the ethanol concentration increases. At a mole fraction of et...

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Autores principales:	Andrade, E.M., Molina, F.V., Posadas, D.
Formato:	Artículo publishedVersion
Publicado:	1997
Materias:	Hematite adhesion Metal surface Water-ethanol mixtures
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_01035053_v8_n4_p371_Andrade https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_01035053_v8_n4_p371_Andrade_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

id	I28-R145-paper_01035053_v8_n4_p371_Andrade_oai
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spelling	I28-R145-paper_01035053_v8_n4_p371_Andrade_oai2024-08-16 Andrade, E.M. Molina, F.V. Posadas, D. 1997 The adherence of hematite (αFe2O3) particles onto mercury electrodes in water-ethanol mixtures has been studied by counting using optical microscope images. The number of attached particles, when the ethanol content is small, decreases as the ethanol concentration increases. At a mole fraction of ethanol near to 0.2, the number of particles goes through a minimum and then it increases with ethanol concentration. When the electrode potential is modified, curves of the number of particles vs. ethanol mole fraction with the same shape are found, but which cross each other. The dependence on the ethanol concentration can be explained based on the dependence of particle/solution and metal/solution interaction energies with the solvent composition. Fil:Andrade, E.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Molina, F.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_01035053_v8_n4_p371_Andrade info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar J. Braz. Chem. Soc. 1997;8(4):371-376 Hematite adhesion Metal surface Water-ethanol mixtures Deposition of colloidal hematite onto mercury from water-ethanol mixtures info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_01035053_v8_n4_p371_Andrade_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic	Hematite adhesion Metal surface Water-ethanol mixtures
spellingShingle	Hematite adhesion Metal surface Water-ethanol mixtures Andrade, E.M. Molina, F.V. Posadas, D. Deposition of colloidal hematite onto mercury from water-ethanol mixtures
topic_facet	Hematite adhesion Metal surface Water-ethanol mixtures
description	The adherence of hematite (αFe2O3) particles onto mercury electrodes in water-ethanol mixtures has been studied by counting using optical microscope images. The number of attached particles, when the ethanol content is small, decreases as the ethanol concentration increases. At a mole fraction of ethanol near to 0.2, the number of particles goes through a minimum and then it increases with ethanol concentration. When the electrode potential is modified, curves of the number of particles vs. ethanol mole fraction with the same shape are found, but which cross each other. The dependence on the ethanol concentration can be explained based on the dependence of particle/solution and metal/solution interaction energies with the solvent composition.
format	Artículo Artículo publishedVersion
author	Andrade, E.M. Molina, F.V. Posadas, D.
author_facet	Andrade, E.M. Molina, F.V. Posadas, D.
author_sort	Andrade, E.M.
title	Deposition of colloidal hematite onto mercury from water-ethanol mixtures
title_short	Deposition of colloidal hematite onto mercury from water-ethanol mixtures
title_full	Deposition of colloidal hematite onto mercury from water-ethanol mixtures
title_fullStr	Deposition of colloidal hematite onto mercury from water-ethanol mixtures
title_full_unstemmed	Deposition of colloidal hematite onto mercury from water-ethanol mixtures
title_sort	deposition of colloidal hematite onto mercury from water-ethanol mixtures
publishDate	1997
url	http://hdl.handle.net/20.500.12110/paper_01035053_v8_n4_p371_Andrade https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_01035053_v8_n4_p371_Andrade_oai
work_keys_str_mv	AT andradeem depositionofcolloidalhematiteontomercuryfromwaterethanolmixtures AT molinafv depositionofcolloidalhematiteontomercuryfromwaterethanolmixtures AT posadasd depositionofcolloidalhematiteontomercuryfromwaterethanolmixtures
_version_	1809357087877103616

Deposition of colloidal hematite onto mercury from water-ethanol mixtures

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