Lanthanum cobaltite

Lanthanum cobaltite is a perovskite with chemical formula LaCoO3. As a solid, the structure LaCoO3, will exist as cubic material at room temperature with ferroelastic properties; though at temperatures above ~900 °C a phase transition to a rhombohedral lattice occurs.[1]

It is also common of LaCoO3 to be utilized with either dopants or exhibit oxygen non-stoichometry where it may assume the structure La1-xA'xCo1-yB'yO3±𝛿 where 𝛿 is some small quantity [2] making this class of perovskites extremely versatile for catalysis, one such commonly utilized material is lanthanum strontium cobalt ferrite otherwise known as LSCF.

References

  1. ↑ Kleveland, Kjersti (2001). "Ferroeleastic Behavior of LaCoO3" (PDF). Journal of the American Ceramic Society. 84 (9): 2029–2033.
  2. ↑ Orlovskaya, Nina (2000). "Mechanical properties of LaCoO3 based ceramics". Journal of the European Ceramic Society. 20 (1): 51–56. doi:10.1016/S0955-2219(99)00084-9.
This article is issued from Wikipedia - version of the 7/8/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.