Lanthanum cobaltite is a perovskite with chemical formula LaCoO3. As a solid, the structure LaCoO3, will exist as rhombohedral material at room temperature with ferroelastic properties; though at temperatures above ~900 °C a phase transition to a cubic lattice occurs.[1][2]
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| Other names
Lanthanum cobalt oxide
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| Identifiers | |
3D model (JSmol)
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| ECHA InfoCard | 100.234.921 |
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| Properties | |
| CoLaO3 | |
| Molar mass | 245.836 g·mol−1 |
| Hazards | |
| GHS labelling: | |
 
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| Warning | |
| H302, H317, H319, H335, H351 | |
| P201, P202, P261, P264, P271, P272, P280, P302+P352, P304+P340, P305+P351+P338, P308+P313, P321, P333+P313, P337+P313, P362, P403+P233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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[3] making this class of perovskites extremely versatile for catalysis, one such commonly utilized material is lanthanum strontium cobalt ferrite otherwise known as LSCF.
References
edit- ^ Kleveland, Kjersti (2001). "Ferroeleastic Behavior of LaCoO3". Journal of the American Ceramic Society. 84 (9): 2029–2033. doi:10.1111/j.1151-2916.2001.tb00953.x.
- ^ Petrov, A. N.; Kononchuk, O. F.; Andreev, A. V.; Cherepanov, V. A.; Kofstad, P. (1995-09-01). "Crystal structure, electrical and magnetic properties of La1−xSrxCoO3−y". Solid State Ionics. 80 (3): 189–199. doi:10.1016/0167-2738(95)00114-L.
- ^ Orlovskaya, Nina (2000). "Mechanical properties of LaCoO3 based ceramics". Journal of the European Ceramic Society. 20 (1): 51–56. CiteSeerX 10.1.1.516.9621. doi:10.1016/S0955-2219(99)00084-9.