Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routes

Autores
Ortiz, Mariela; Castro, Élida Beatriz; Real, Silvia Graciela
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Carbon materials are used to improve the nickel hydroxide electrode capacity in rechargeable alkaline batteries. Herein, we present the preparation of multiwall carbon nanotubes/nickel hydroxide composites (MWCNTs/Ni (OH)₂) by two different routes. The first method consists of the direct incorporation of MWCNTs in the active material, and the second is based on the hydrothermal synthesis of β-nickel hydroxide, where MWCNTs are added to the precursor solutions. The electrochemical properties of the prepared positive electrodes containing MWCNTs/Ni (OH)₂ composites are studied. Electrochemical results indicate that the active material with MWCNTs incorporated before the hydrothermal synthesis is capable of delivering a higher discharge capacity and exhibits a better reversibility than those composites prepared with MWCNTs after the hydrothermal route.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Química
Física
Nickel hydroxide
Carbon nanotubes
Positive electrode
Ni-MH batteries
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/138395
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/138395
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routesOrtiz, MarielaCastro, Élida BeatrizReal, Silvia GracielaQuímicaFísicaNickel hydroxideCarbon nanotubesPositive electrodeNi-MH batteriesCarbon materials are used to improve the nickel hydroxide electrode capacity in rechargeable alkaline batteries. Herein, we present the preparation of multiwall carbon nanotubes/nickel hydroxide composites (MWCNTs/Ni (OH)₂) by two different routes. The first method consists of the direct incorporation of MWCNTs in the active material, and the second is based on the hydrothermal synthesis of β-nickel hydroxide, where MWCNTs are added to the precursor solutions. The electrochemical properties of the prepared positive electrodes containing MWCNTs/Ni (OH)₂ composites are studied. Electrochemical results indicate that the active material with MWCNTs incorporated before the hydrothermal synthesis is capable of delivering a higher discharge capacity and exhibits a better reversibility than those composites prepared with MWCNTs after the hydrothermal route.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2017-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf2339-2347http://sedici.unlp.edu.ar/handle/10915/138395enginfo:eu-repo/semantics/altIdentifier/issn/1432-8488info:eu-repo/semantics/altIdentifier/issn/1433-0768info:eu-repo/semantics/altIdentifier/doi/10.1007/s10008-017-3573-8info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:23:53Zoai:sedici.unlp.edu.ar:10915/138395Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:23:54.183SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routes
title Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routes
spellingShingle Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routes
Ortiz, Mariela
Química
Física
Nickel hydroxide
Carbon nanotubes
Positive electrode
Ni-MH batteries
title_short Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routes
title_full Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routes
title_fullStr Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routes
title_full_unstemmed Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routes
title_sort Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routes
dc.creator.none.fl_str_mv Ortiz, Mariela
Castro, Élida Beatriz
Real, Silvia Graciela
author Ortiz, Mariela
author_facet Ortiz, Mariela
Castro, Élida Beatriz
Real, Silvia Graciela
author_role author
author2 Castro, Élida Beatriz
Real, Silvia Graciela
author2_role author
author
dc.subject.none.fl_str_mv Química
Física
Nickel hydroxide
Carbon nanotubes
Positive electrode
Ni-MH batteries
topic Química
Física
Nickel hydroxide
Carbon nanotubes
Positive electrode
Ni-MH batteries
dc.description.none.fl_txt_mv Carbon materials are used to improve the nickel hydroxide electrode capacity in rechargeable alkaline batteries. Herein, we present the preparation of multiwall carbon nanotubes/nickel hydroxide composites (MWCNTs/Ni (OH)₂) by two different routes. The first method consists of the direct incorporation of MWCNTs in the active material, and the second is based on the hydrothermal synthesis of β-nickel hydroxide, where MWCNTs are added to the precursor solutions. The electrochemical properties of the prepared positive electrodes containing MWCNTs/Ni (OH)₂ composites are studied. Electrochemical results indicate that the active material with MWCNTs incorporated before the hydrothermal synthesis is capable of delivering a higher discharge capacity and exhibits a better reversibility than those composites prepared with MWCNTs after the hydrothermal route.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description Carbon materials are used to improve the nickel hydroxide electrode capacity in rechargeable alkaline batteries. Herein, we present the preparation of multiwall carbon nanotubes/nickel hydroxide composites (MWCNTs/Ni (OH)₂) by two different routes. The first method consists of the direct incorporation of MWCNTs in the active material, and the second is based on the hydrothermal synthesis of β-nickel hydroxide, where MWCNTs are added to the precursor solutions. The electrochemical properties of the prepared positive electrodes containing MWCNTs/Ni (OH)₂ composites are studied. Electrochemical results indicate that the active material with MWCNTs incorporated before the hydrothermal synthesis is capable of delivering a higher discharge capacity and exhibits a better reversibility than those composites prepared with MWCNTs after the hydrothermal route.
publishDate 2017
dc.date.none.fl_str_mv 2017-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/138395
url http://sedici.unlp.edu.ar/handle/10915/138395
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1432-8488
info:eu-repo/semantics/altIdentifier/issn/1433-0768
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10008-017-3573-8
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
2339-2347
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.22299

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