How (Ba_0.5Sr_0.5)(Fe_0.8Zn_0.2)O_3–δ and (Ba_0.5Sr_0.5)(Co_0.8Fe_0.2)O_3–δ Perovskites Form via an EDTA/Citric Acid Complexing Method

Abstract

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. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2089/2007/c0322_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.