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Russian Journal of Electrochemistry

, Volume 36, Issue 8, pp 866–873 | Cite as

Manufacturing corrosion-resistant electrode materials on the Basis of Ti, Ta, Nb, and W covered with thin electrodeposited platinum layers

  • L. A. Mikhailova
  • E. V. Kasatkin
  • V. E. Kasatkin
  • S. G. Prutchenko
Article

Abstract

The electrodeposition of thin platinum coatings onto Ti, Ta, Nb, and W supports with an ordered microstructure and reliable adhesion is studied. The coatings can be applied in adverse electrolysis conditions for synthesizing oxidants and for other purposes. Optimum conditions for a support pretreatment and a platinum deposition from an electrolyte based on platinum diamminedinitrite are found. All other deposition conditions being the same, the support pretreatment affects the coating microstructure (ordering, size of Pt crystallites, roughness coefficient). On polished Nb supports, the grain size of Pt crystallites is smaller, the coating is more compact, and the roughness coefficient drops to nearly 5–8, which is typical for bulk platinum. However, the Nb support must be preliminarily oxidized in a strictly specified mode, for preventing hydrogen sorption during platinum electrodeposition, if one is to deposit reliable poreless platinum coatings with strong adhesion

Keywords

Current Efficiency Roughness Coefficient Platinum Plating Hydrogen Sorption Platinum Coating 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© MAIK “Nauka/Interperiodica” 2000

Authors and Affiliations

  • L. A. Mikhailova
    • 1
  • E. V. Kasatkin
    • 1
  • V. E. Kasatkin
    • 1
  • S. G. Prutchenko
    • 1
  1. 1.Russian Federation Scientific Center “Karpov Research Institute of Physical Chemistry,”MoscowRussia

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