Abstract

This study compares the electrical transport and the oxygen exchange properties of two mixed conducting materials between 600 and , namely (LSCF) and (BSCF). Both materials were synthesized by spray pyrolysis and characterized by the electrical conductivity relaxation technique. LSCF has the higher electrical conductivity ( between 450 and ), while BSCF shows faster oxygen exchange kinetics and diffusion. The expansion of both materials between 600 and (, below up to at ) does not match with the common electrolytes for solid oxide fuel cells.

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