Electrochemical characterization of nickel hydroxide nanomaterials as electrodes for NiMH batteries

β-Nickel hydroxide was successfully synthesized by a hydrothermal method. Nano-nickel hydroxide material was characterized by X-ray diffraction, infrared absorption spectroscopy, and transmission electron microscopy. They were employed as additives to the positive electrode of Ni-MH batteries. Worki...

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Autores principales: Real, Silvia, Ortiz, Mariela, Castro, Élida Beatriz
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: Springer 2017
Materias:
hydrothermal synthesis; nano nickel hydroxide; positive electrodes; NiMH batteries; electrochemical characterization
Acceso en línea:http://hdl.handle.net/20.500.12272/2480
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-2480
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic hydrothermal synthesis; nano nickel hydroxide; positive electrodes; NiMH batteries; electrochemical characterization
spellingShingle hydrothermal synthesis; nano nickel hydroxide; positive electrodes; NiMH batteries; electrochemical characterization
Real, Silvia
Ortiz, Mariela
Castro, Élida Beatriz
Electrochemical characterization of nickel hydroxide nanomaterials as electrodes for NiMH batteries
topic_facet hydrothermal synthesis; nano nickel hydroxide; positive electrodes; NiMH batteries; electrochemical characterization
description β-Nickel hydroxide was successfully synthesized by a hydrothermal method. Nano-nickel hydroxide material was characterized by X-ray diffraction, infrared absorption spectroscopy, and transmission electron microscopy. They were employed as additives to the positive electrode of Ni-MH batteries. Working electrodes, with mixtures of commercial nickel hydroxide and nano-nickel hydroxide (0–10 wt.%) as active material, were prepared. Cyclic voltammetry, charge discharge profiles, and electrochemical impedance spectroscopy studies were carried out to evaluate the electrochemical performance of the nickel electrode, in 7 M KOH electrolyte, at 25 °C. The presence of nano-nickel hydroxide improves the electrochemical behavior of the active material. The electrochemical impedance spectroscopy (EIS) results were analyzed employing a modified version of previously developed physicochemical model that takes into account the main structural and physicochemical parameters that control these systems.
format Artículo
publishedVersion
Artículo
author Real, Silvia
Ortiz, Mariela
Castro, Élida Beatriz
author_facet Real, Silvia
Ortiz, Mariela
Castro, Élida Beatriz
author_sort Real, Silvia
title Electrochemical characterization of nickel hydroxide nanomaterials as electrodes for NiMH batteries
title_short Electrochemical characterization of nickel hydroxide nanomaterials as electrodes for NiMH batteries
title_full Electrochemical characterization of nickel hydroxide nanomaterials as electrodes for NiMH batteries
title_fullStr Electrochemical characterization of nickel hydroxide nanomaterials as electrodes for NiMH batteries
title_full_unstemmed Electrochemical characterization of nickel hydroxide nanomaterials as electrodes for NiMH batteries
title_sort electrochemical characterization of nickel hydroxide nanomaterials as electrodes for nimh batteries
publisher Springer
publishDate 2017
url http://hdl.handle.net/20.500.12272/2480
work_keys_str_mv AT realsilvia electrochemicalcharacterizationofnickelhydroxidenanomaterialsaselectrodesfornimhbatteries
AT ortizmariela electrochemicalcharacterizationofnickelhydroxidenanomaterialsaselectrodesfornimhbatteries
AT castroelidabeatriz electrochemicalcharacterizationofnickelhydroxidenanomaterialsaselectrodesfornimhbatteries
bdutipo_str Repositorios
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