The electrochemistry of nanostructured Ni–W alloys

This work reports on the features that Ni–W nanostructured alloys, electrodeposited on carbon steel by different current pulse programs, may present depending on their surface morphology and surface composition. The Ni–W nanostructured coating, with a cauliflower structure, lack of fragility, and hi...

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Autores principales: Quiroga Argañaraz, M. P., Ribotta, S. B., Folquer, M. E., Benitez, Guillermo Alfredo, Rubert, Aldo Alberto, Gassa, Liliana Mabel, Vela, María Elena, Salvarezza, Roberto Carlos
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Química
Pulse electrodeposition
Ni-W alloys
Nanostructured materials
XPS
Corrosion resistance
Hydrogen evolution reaction
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/108965
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-108965
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Pulse electrodeposition
Ni-W alloys
Nanostructured materials
XPS
Corrosion resistance
Hydrogen evolution reaction
spellingShingle Química
Pulse electrodeposition
Ni-W alloys
Nanostructured materials
XPS
Corrosion resistance
Hydrogen evolution reaction
Quiroga Argañaraz, M. P.
Ribotta, S. B.
Folquer, M. E.
Benitez, Guillermo Alfredo
Rubert, Aldo Alberto
Gassa, Liliana Mabel
Vela, María Elena
Salvarezza, Roberto Carlos
The electrochemistry of nanostructured Ni–W alloys
topic_facet Química
Pulse electrodeposition
Ni-W alloys
Nanostructured materials
XPS
Corrosion resistance
Hydrogen evolution reaction
description This work reports on the features that Ni–W nanostructured alloys, electrodeposited on carbon steel by different current pulse programs, may present depending on their surface morphology and surface composition. The Ni–W nanostructured coating, with a cauliflower structure, lack of fragility, and high WO3/W surface composition ratio, is a stable electrode to catalyze hydrogen evolution reaction, exceeding bulk and electrodeposited Ni catalytic activity. Also, the nanostructured alloys must have a low WO3/W surface composition ratio for Ni and its oxides to provide protection and improve corrosion resistance in sulfate media.
format Articulo
Articulo
author Quiroga Argañaraz, M. P.
Ribotta, S. B.
Folquer, M. E.
Benitez, Guillermo Alfredo
Rubert, Aldo Alberto
Gassa, Liliana Mabel
Vela, María Elena
Salvarezza, Roberto Carlos
author_facet Quiroga Argañaraz, M. P.
Ribotta, S. B.
Folquer, M. E.
Benitez, Guillermo Alfredo
Rubert, Aldo Alberto
Gassa, Liliana Mabel
Vela, María Elena
Salvarezza, Roberto Carlos
author_sort Quiroga Argañaraz, M. P.
title The electrochemistry of nanostructured Ni–W alloys
title_short The electrochemistry of nanostructured Ni–W alloys
title_full The electrochemistry of nanostructured Ni–W alloys
title_fullStr The electrochemistry of nanostructured Ni–W alloys
title_full_unstemmed The electrochemistry of nanostructured Ni–W alloys
title_sort electrochemistry of nanostructured ni–w alloys
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/108965
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