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Keywords:

  • solid oxide fuel cells;
  • electrical conductivity;
  • infrared spectroscopy
Thumbnail image of graphical abstract

The electrical conductivities of cathode films on a solid oxide fuel cell electrolyte can be determined quantitatively by in situ infrared spectroscopy over a wide range of temperatures and partial oxygen pressures. This method allows measurement of the electrical conductivity of an electrode film on the electrolyte excluding leakage current effects through the substrate.