In situ study of strontium segregation in La0.6Sr0.4Co0.2Fe0.8O3−δ in ambient atmospheres using high-temperature environmental scanning electron microscopy

Samples of the solid oxide fuel cell cathode material La_0.6Sr_0.4Co_0.2Fe_0.8O_3−δ (LSCF) were annealed using HT-ESEM from room temperature to 1000 °C in atmospheres of pure oxygen, pure water and ambient lab air.