Lanthanum strontium cobalt ferrite explained

Lanthanum strontium cobalt ferrite (LSCF), also called lanthanum strontium cobaltite ferrite is a specific ceramic oxide derived from lanthanum cobaltite of the ferrite group. It is a phase containing lanthanum(III) oxide, strontium oxide, cobalt oxide and iron oxide with the formula, where 0.1≤x≤0.4 and 0.2≤y≤0.8.^[1]

It is black in color and crystallizes in a distorted hexagonal perovskite structure.^[2] 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).^[3] 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.^[4]

LSCF is being investigated as a material for intermediate temperature solid oxide fuel cell cathodes and, potentially as a direct carbon fuel cell anode.^[2]

LSCF is also investigated as a membrane material for separation of oxygen from air, for use in e.g. cleaner burning power plants.^[5]

See also

• Lanthanum strontium manganite (LSM)
• Lanthanum strontium ferrite (LSF)
• Lanthanum calcium manganite (LCM)
• Lanthanum strontium chromite (LSC)
• Lanthanum strontium gallate magnesite (LSGM)

External links

• LSCF supplier and info American Elements

Notes and References

1. Chang . Hun-Chieh . Tsai . Dah-Shyang . Chung . Wen-Hung . Huang . Ying-Sheng . Le . Minh-Vien . A ceria layer as diffusion barrier between LAMOX and lanthanum strontium cobalt ferrite along with the impedance analysis . Solid State Ionics . 27 April 2009 . 180 . 4–5 . 412–417 . 10.1016/j.ssi.2009.01.018.
2. Kulkarni. A.. Ciacchi. F.T.. Giddey. S.. Munnings. C.. Badwal. S.P.S.. Kimpton. J.A.. Fini. D.. Mixed ionic electronic conducting perovskite anode for direct carbon fuel cells. International Journal of Hydrogen Energy. December 2012. 37. 24. 19092–19102. 10.1016/j.ijhydene.2012.09.141. 2012IJHE...3719092K .
3. Badwal. SPS. Giddey. S. Munnings. C. Kulkarni. A. Review of Progress in High Temperature Solid Oxide Fuel Cells . Journal of the Australian Ceramics Society . 2014. 50. 1.
4. Munnings. C.. Kulkarni. A.. Giddey. S.. Badwal. S.P.S.. Biomass to power conversion in a direct carbon fuel cell. International Journal of Hydrogen Energy. August 2014. 39. 23. 12377–12385. 10.1016/j.ijhydene.2014.03.255. 2014IJHE...3912377M .
5. Web site: Ceramic Tubes Could Cut Greenhouse Gas Emissions From Power Stations. 2020-10-08. ScienceDaily. en.