Hydrogen diffusion through Ru thin films

O. Soroka, J. M. Sturm, C. J. Lee, H. Schreuders, B. Dam, F. Bijkerk

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)


In this paper, an experimental measurement of the diffusion constant of hydrogen in ruthenium is presented. By using a hydrogen indicative Y layer, placed under the Ru layer, the hydrogen flux through Ru was obtained by measuring the optical changes in the Y layer. We use optical transmission measurements to obtain the hydrogenation rate of Y in a temperature range from room temperature to 100 °C. We show that the measured hydrogenation rate is limited mainly by the hydrogen diffusion in Ru. These measurements were used to estimate the diffusion coefficient, D, and activation energy of hydrogen diffusion in Ru thin films to be D = 5.9 × 10−14 m2/s ∙ exp (-0.33 eV/kBτ), with kB the Boltzmann constant and τ the temperature.

Original languageEnglish
Pages (from-to)15003-15010
Number of pages8
JournalInternational Journal of Hydrogen Energy
Issue number29
Publication statusPublished - 2020


  • Activation energy
  • Hydrogen diffusion
  • Optical transmission
  • Ruthenium
  • Yttrium

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