Journal
ELECTROCHIMICA ACTA
Volume 106, Issue -, Pages 392-397Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2013.05.116
Keywords
Electrodeposition; Anomalous codeposition; Fe-Ni alloys; Nanopores
Categories
Funding
- Spanish Ministry of Science [MAT2010-21553-C02-01, MAT2011-28751-C02]
- Universidad Complutense de Madrid
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In this paper we report an enhancement of anomalous codeposition in NiFe electrodeposition when using nanoporous templates. Depending on the deposition potential it is possible to obtain homogeneous nanowires of a high Fe concentration or of a concentration similar to the one of the electrolyte used. In addition, nanowires with a decreasing Fe concentration are found for intermediate overpotentials. Voltammetric studies relate this effect with a possible higher block of the cathode surface by adsorption. of intermediated species in nanopores. A study of the effect of hydrogen bubbles shows a change in the composition in the areas surrounding the bubbles, and yields an increase in the deposition rate, which results in longer nanowires. (C) 2013 Elsevier Ltd. All rights reserved.
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