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Journal of Applied Electrochemistry

, Volume 31, Issue 9, pp 1033–1039 | Cite as

Comparative study on electrochemical techniques for determination of hydrogen diffusion coefficients in metal hydride electrodes

  • X. Yuan
  • N. Xu
Article

Abstract

The constant potential discharge technique, constant current discharge technique and electrochemical impedance spectroscopy were employed to determine the hydrogen diffusion coefficient in a metal hydride electrode of MlNi3.65Co0.75Mn0.4Al0.2 alloy with various depth of discharge (DOD) at room temperature and with a specific DOD at various temperatures. The results were compared and the advantages and disadvantages of these techniques were also discussed.

electrochemical techniques hydrogen diffusion coefficient metal hydride electrode 

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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • X. Yuan
    • 1
  • N. Xu
    • 1
  1. 1.Shanghai Institute of MetallurgyChinese Academy of SciencesShanghaiChina

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