How (Ba0.5Sr0.5)(Fe0.8Zn0.2)O3–δ and (Ba0.5Sr0.5)(Co0.8Fe0.2)O3–δ Perovskites Form via an EDTA/Citric Acid Complexing Method


  • The authors gratefully acknowledge funding by the Deutsche Forschungsgemeinschaft (DFG) under grant FE 928/1-1.


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Perovskites with complex stoichiometries are widely synthesized by EDTA/citric acid complexing methods. Even though these methods are well established, details of the perovskite structure formation remained hidden. The structure analysis of different stages of the synthesis process allows the identification of the crystalline intermediates as spinel and carbonate. The perovskite is formed between them in a nanoscale solid-state reaction.