Lanthanum strontium cobalt ferrite

Lanthanum strontium cobalt ferrite (LSCF), also called lanthanum strontium cobaltite ferrite is a ceramic material of the ferrite group. It is a phase containing lanthanum(III) oxide, strontium oxide, cobalt oxide and iron oxide (cobalt iron oxide).

It is black in color and crystallizes in a distorted hexagonal perovskite structure.[1] LSCF undergoes phase transformations at various temperatures depending on the composition. This material is a mixed ionic electronic conductor with comparatively high electronic conductivity (200+ S/cm) and good ionic conductivity (0.2 S/cm).[2] It is typically non-stoichiometric and can be reduced further at high temperature in low oxygen partial pressures or in the presence of a reducing agent such as carbon.[3]

LSCF is being investigated as a material for intermediate temperature solid oxide fuel cell cathodes and, potentially as a Direct carbon fuel cell anode.[4]

LSCF is also investigated as a membrane material for separation of oxygen from air, for use in e.g. cleaner burning power plants.

It is commercially available.

References

  1. ↑ Kulkarni, A.; Ciacchi, F.T.; Giddey, S.; Munnings, C.; Badwal, S.P.S.; Kimpton, J.A.; Fini, D. (December 2012). "Mixed ionic electronic conducting perovskite anode for direct carbon fuel cells". International Journal of Hydrogen Energy 37 (24): 19092–19102. doi:10.1016/j.ijhydene.2012.09.141.
  2. ↑ Badwal, SPS; Giddey, S; Munnings, C; Kulkarni, A (2014). "Review of Progress in High Temperature Solid Oxide Fuel Cells (OPEN ACCESS)" (PDF). Journal of the Australian Ceramics Society Volume 50 (1).
  3. ↑ Munnings, C.; Kulkarni, A.; Giddey, S.; Badwal, S.P.S. (August 2014). "Biomass to power conversion in a direct carbon fuel cell". International Journal of Hydrogen Energy 39 (23): 12377–12385. doi:10.1016/j.ijhydene.2014.03.255.
  4. ↑ Kulkarni, A.; Ciacchi, F.T.; Giddey, S.; Munnings, C.; Badwal, S.P.S.; Kimpton, J.A.; Fini, D. (December 2012). "Mixed ionic electronic conducting perovskite anode for direct carbon fuel cells". International Journal of Hydrogen Energy 37 (24): 19092–19102. doi:10.1016/j.ijhydene.2012.09.141.

See also

External links


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