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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Bibliographic Details
Published inJournal of solid state electrochemistry Vol. 17; no. 2; pp. 307 - 313
Main Authors Quiroga Argañaraz, M. P., Ribotta, S. B., Folquer, M. E., Benítez, G., Rubert, A., Gassa, L. M., Vela, M. E., Salvarezza, R. C.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer-Verlag 01.02.2013
Subjects
Analytical Chemistry
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrochemistry
Energy Storage
Physical Chemistry
Review
Corrosion resistance
Hydrogen evolution reaction
XPS
Ni–W alloys
Nanostructured materials
Pulse electrodeposition
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Summary: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 WO 3 /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 WO 3 /W surface composition ratio for Ni and its oxides to provide protection and improve corrosion resistance in sulfate media.
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-012-1965-3