Preparation of La0.3Sr0.7CoO3-δ perovskite by thermal decomposition of metal-EDTA complexes

Perovskite powders of La0.3Sr0.7CoO3-δ were prepared by the thermal decomposition of precursor complexes derived from nitrate solutions using ethylenediaminetetraacetic acid (EDTA) as a complexing agent. The calcination temperature is 920 °C. Powders thus obtained have a low carbon contamination. Dense ceramics with a relative density of about 96% have been prepared after sintering at 1150 °C