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

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 incorporati...

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Detalles Bibliográficos
Autores: Ortiz, Mariela, Castro, Élida Beatriz, Real, Silvia Graciela
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:Argentina
Institución:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/138395
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/138395
Access Level:acceso abierto
Palabra clave:Química
Física
Nickel hydroxide
Carbon nanotubes
Positive electrode
Ni-MH batteries
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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:UNLP2024-05-08T13:10:31Zoai: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:13292024-05-08 13:10:31.625SEDICI (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
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
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (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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