Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materials

Autores
Ortiz, Mariela; Real, Silvia; Castro, Élida Beatriz
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The hydrothermal method was used to synthesize multi-walled carbon nanotube/nickel hydroxide composites (MWCNT/Ni(OH)2). The structure and morphology of the prepared materials were characterized by X-ray diffraction and transmission electron microscopy. The electrochemical performance of cathodes prepared with multi-walled carbon nanotubes (MWCNT) loaded into the β-nickel hydroxide materials was investigated employing cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopic measurements. It is shown that the cathode active material utilization increases for MWCNT/ Ni(OH)2 obtained after 24 h of hydrothermal synthesis. These composites exhibit a fairly good electrochemical performance as cathode materials. Based on the results, this fact could be associated with the formation of a continuous conductive network structure in the hydroxide matrix. The analyses of impedance data, according to a physicochemical model, allow the improvement of a better understanding of the main structural and physicochemical parameters that control the electrochemical performance of these systems.
Fil: Ortiz, Mariela. UTN (Universidad Tecnológica Nacional); Argentina. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentina
Fil: Real, Silvia. UTN (Universidad Tecnológica Nacional); Argentina. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentina
Fil: Castro, Élida Beatriz. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentina
Peer Reviewed
Materia
Nickel electrode; MWCNT; NiMH batteries; hydrothermal synthesis; electrochemical characterization
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/2479
Acceder
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network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materialsOrtiz, MarielaReal, SilviaCastro, Élida BeatrizNickel electrode; MWCNT; NiMH batteries; hydrothermal synthesis; electrochemical characterizationThe hydrothermal method was used to synthesize multi-walled carbon nanotube/nickel hydroxide composites (MWCNT/Ni(OH)2). The structure and morphology of the prepared materials were characterized by X-ray diffraction and transmission electron microscopy. The electrochemical performance of cathodes prepared with multi-walled carbon nanotubes (MWCNT) loaded into the β-nickel hydroxide materials was investigated employing cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopic measurements. It is shown that the cathode active material utilization increases for MWCNT/ Ni(OH)2 obtained after 24 h of hydrothermal synthesis. These composites exhibit a fairly good electrochemical performance as cathode materials. Based on the results, this fact could be associated with the formation of a continuous conductive network structure in the hydroxide matrix. The analyses of impedance data, according to a physicochemical model, allow the improvement of a better understanding of the main structural and physicochemical parameters that control the electrochemical performance of these systems.Fil: Ortiz, Mariela. UTN (Universidad Tecnológica Nacional); Argentina. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; ArgentinaFil: Real, Silvia. UTN (Universidad Tecnológica Nacional); Argentina. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; ArgentinaFil: Castro, Élida Beatriz. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; ArgentinaPeer ReviewedSpringer2017-11-29T15:57:21Z2017-11-29T15:57:21Z2015-09-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/20.500.12272/2479enginfo:eu-repo/semantics/openAccessAtribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2025-10-16T10:10:46Zoai:ria.utn.edu.ar:20.500.12272/2479instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2025-10-16 10:10:46.602Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materials
title Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materials
spellingShingle Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materials
Ortiz, Mariela
Nickel electrode; MWCNT; NiMH batteries; hydrothermal synthesis; electrochemical characterization
title_short Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materials
title_full Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materials
title_fullStr Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materials
title_full_unstemmed Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materials
title_sort Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materials
dc.creator.none.fl_str_mv Ortiz, Mariela
Real, Silvia
Castro, Élida Beatriz
author Ortiz, Mariela
author_facet Ortiz, Mariela
Real, Silvia
Castro, Élida Beatriz
author_role author
author2 Real, Silvia
Castro, Élida Beatriz
author2_role author
author
dc.subject.none.fl_str_mv Nickel electrode; MWCNT; NiMH batteries; hydrothermal synthesis; electrochemical characterization
topic Nickel electrode; MWCNT; NiMH batteries; hydrothermal synthesis; electrochemical characterization
dc.description.none.fl_txt_mv The hydrothermal method was used to synthesize multi-walled carbon nanotube/nickel hydroxide composites (MWCNT/Ni(OH)2). The structure and morphology of the prepared materials were characterized by X-ray diffraction and transmission electron microscopy. The electrochemical performance of cathodes prepared with multi-walled carbon nanotubes (MWCNT) loaded into the β-nickel hydroxide materials was investigated employing cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopic measurements. It is shown that the cathode active material utilization increases for MWCNT/ Ni(OH)2 obtained after 24 h of hydrothermal synthesis. These composites exhibit a fairly good electrochemical performance as cathode materials. Based on the results, this fact could be associated with the formation of a continuous conductive network structure in the hydroxide matrix. The analyses of impedance data, according to a physicochemical model, allow the improvement of a better understanding of the main structural and physicochemical parameters that control the electrochemical performance of these systems.
Fil: Ortiz, Mariela. UTN (Universidad Tecnológica Nacional); Argentina. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentina
Fil: Real, Silvia. UTN (Universidad Tecnológica Nacional); Argentina. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentina
Fil: Castro, Élida Beatriz. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentina
Peer Reviewed
description The hydrothermal method was used to synthesize multi-walled carbon nanotube/nickel hydroxide composites (MWCNT/Ni(OH)2). The structure and morphology of the prepared materials were characterized by X-ray diffraction and transmission electron microscopy. The electrochemical performance of cathodes prepared with multi-walled carbon nanotubes (MWCNT) loaded into the β-nickel hydroxide materials was investigated employing cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopic measurements. It is shown that the cathode active material utilization increases for MWCNT/ Ni(OH)2 obtained after 24 h of hydrothermal synthesis. These composites exhibit a fairly good electrochemical performance as cathode materials. Based on the results, this fact could be associated with the formation of a continuous conductive network structure in the hydroxide matrix. The analyses of impedance data, according to a physicochemical model, allow the improvement of a better understanding of the main structural and physicochemical parameters that control the electrochemical performance of these systems.
publishDate 2015
dc.date.none.fl_str_mv 2015-09-04
2017-11-29T15:57:21Z
2017-11-29T15:57:21Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12272/2479
url http://hdl.handle.net/20.500.12272/2479
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.
eu_rights_str_mv openAccess
rights_invalid_str_mv Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
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score 12.712165

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