Oxygen transport in La0.6Sr0.4Co1−yFeyO3−δ

@article{Bouwmeester2004OxygenTI,
  title={Oxygen transport in La0.6Sr0.4Co1−yFeyO3−δ},
  author={Henricus J.M. Bouwmeester and Matthijs W. den Otter and Bernard A. Boukamp},
  journal={Journal of Solid State Electrochemistry},
  year={2004},
  volume={8},
  pages={599-605}
}
The surface exchange coefficient and chemical diffusion coefficient of oxygen for the perovskites La0.6Sr0.4Co1−yFeyO3−δ (y=0.2, 0.5 and 0.8) were measured using the conductivity relaxation technique. Measurements were performed between 600 and 800 °C in an oxygen partial pressure range between 10−4 and 1 bar. Both transport coefficients decrease markedly with decreasing oxygen partial pressure below about 10−2 bar at all temperatures. This is attributed to ordering of oxygen vacancies… CONTINUE READING

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