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Hydrogen evolution on Ni/WC composite coatings

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2006
Authors
Marinović, Vedrana
Stevanović, Jasmina
Jugović, Branimir
Maksimović, M.
Article (Published version)
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Abstract
The catalytic activity for the hydrogen evolution reaction (HER) of Ni/WC composites obtained by electrochemical deposition of nickel from a conventional Watt’s bath, using two different ways of depositing the WC particles, was investigated. All the composite coatings exhibited electrocatalytic activity for the HER larger than that of pure Ni in both alkaline and acid solution. The activity increased with increasing content of WC in the coating and, in the pulsed current regime, with increasing frequency of pulsation. In addition, coatings with smaller particles incorporated exhibited higher activity than those with larger particles. At a constant potential, an order of magnitude higher current densities were obtained in some cases.
Keywords:
catalyst / composite / electrodeposition / hydrogen evolution (HER) / Ni/WC
Source:
Journal of Applied Electrochemistry, 2006, 36, 9, 1005-1009
Publisher:
  • Springer
Projects:
  • Modifikacija metalnih i nemetalnih materijala elektroprovodnim polimerima za primenu u novim tehnologijama (RS-142044)

DOI: 10.1007/s10800-006-9168-1

ISSN: 0021891X; 1572-8838

WoS: 000239730100007

Scopus: 2-s2.0-33747203757
[ Google Scholar ]
17
16
URI
http://cer.ihtm.bg.ac.rs/handle/123456789/3412
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IHTM

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