For several decades, numerous mixed-conductor materials have been studied as
membrane material or electrodes for SOFC technology. Our study focuses on recent
progress about a better understanding of oxygen transport mechanisms through the ceramic
membrane for air separation. Thus, this work has led to the development of a new setup,
which allows to measure oxygen electrochemical activity on the membrane surface in
working conditions. This original setup provides essential information for the
understanding of the oxygen exchange mechanisms on membrane surface. | 
