Investigation on Chemical Properties of Synthesized Membrane perovskite with Complexation and Co-Precipitation Method

Three dense membranes of types SrCo0.8Fe0.2O3-d (SCF(82)), La0.6Sr0.4 Co0.8Fe0.2O3-d (LSCF(6482)) and La0.8Sr0.2Co0.6Fe0.4O3-d (LSCF(8264)) per- ovskites were prepared by Complexation and Co-Precipitation Method. The crystal structures of the membrane samples were characterized by X-ray diffraction (XRD). XRD studies confirmed that all of the prepared powders have cubic perovskite structures with space group Pm1/3m. Experimental formula and stoichiometry of the metal ions in the prepared perovskites were determined and confirmed by Atomic Absorption Spectroscopy and Inductively Coupled Plasma techniques.The homogeneity and pH- stability of the metal complexes of EDTA was checked and compared by turbidity measurements in both acidic and alkaline media.

کلیدواژه ها:

Perovskite ، stability ، turbidity ، dense membranes