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Fabrication of Nickel/Zirconium Anode for Solid Oxide Fuel Cells by Electrochemical Method

[+] Author Affiliations
Surya V. Pothula, Yong X. Gan

The University of Toledo, Toledo, OH

Paper No. MSEC2010-34225, pp. 433-437; 5 pages
doi:10.1115/MSEC2010-34225
From:
  • ASME 2010 International Manufacturing Science and Engineering Conference
  • ASME 2010 International Manufacturing Science and Engineering Conference, Volume 2
  • Erie, Pennsylvania, USA, October 12–15, 2010
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-4947-7 | eISBN: 978-0-7918-3887-7
  • Copyright © 2010 by ASME

abstract

In this work, preparation of discontinuous nickel films on zirconium by electrochemical deposition of Ni-Cu alloy followed by selective anodic etching of the more noble metal, copper, was performed in an aqueous solution at room temperature. Potential varying electrodeposition produces were applied to obtain Ni-Cu alloys on Zr substrate. It is found that the Ni content increases as the deposition potential becomes more negative. Cyclic voltam-metric data indicate that the anodic dissolution of nickel is retarded by passivation. By taking the advantage of nickel passivation, selective anodic etching of Cu is achieved. Multicyclic electrochemical alloying/dealloying process makes the film rich of nickel and complete dealloying of copper.

Copyright © 2010 by ASME

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