LSCF
LSCF, short for lanthanum strontium cobalt ferrite, is a doped perovskite oxide widely used as a cathode material in solid oxide fuel cells (SOFCs) and related electrochemical devices. Its general formula is La1−xSrx(Co1−yFe y)O3−δ, with common IT-SOFC compositions such as La0.6Sr0.4Co0.2Fe0.8O3−δ. The material combines lanthanum at the A-site with partial substitution by strontium, and a mixed B-site of cobalt and iron. The δ denotes oxygen nonstoichiometry that varies with temperature and oxygen partial pressure, contributing to the material’s mixed ionic and electronic conductivity.
LSCF is classified as a mixed ionic-electronic conductor (MIEC). It exhibits relatively high electronic conductivity and
Challenges include surface segregation of strontium under certain high-temperature and reducing conditions, which can degrade electrochemical
LSCF remains a widely studied and deployed cathode option for IT-SOFCs and related electrochemical devices due