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

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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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Autores principales: Ortiz, Mariela, Castro, Élida Beatriz, Real, Silvia Graciela
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Química
Física
Nickel hydroxide
Carbon nanotubes
Positive electrode
Ni-MH batteries
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/138395
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-138395
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Física
Nickel hydroxide
Carbon nanotubes
Positive electrode
Ni-MH batteries
spellingShingle Química
Física
Nickel hydroxide
Carbon nanotubes
Positive electrode
Ni-MH batteries
Ortiz, Mariela
Castro, Élida Beatriz
Real, Silvia Graciela
Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routes
topic_facet 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.
format Articulo
Articulo
author Ortiz, Mariela
Castro, Élida Beatriz
Real, Silvia Graciela
author_facet Ortiz, Mariela
Castro, Élida Beatriz
Real, Silvia Graciela
author_sort Ortiz, Mariela
title Electrochemical performance comparison of MWCNTs/Ni (OH)₂ composite materials by two preparation routes
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
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/138395
work_keys_str_mv AT ortizmariela electrochemicalperformancecomparisonofmwcntsnioh2compositematerialsbytwopreparationroutes
AT castroelidabeatriz electrochemicalperformancecomparisonofmwcntsnioh2compositematerialsbytwopreparationroutes
AT realsilviagraciela electrochemicalperformancecomparisonofmwcntsnioh2compositematerialsbytwopreparationroutes
bdutipo_str Repositorios
_version_ 1764820457180102656

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