Mixed conducting perovskite oxides and related structures serving as electrodes for
electrochemical oxygen incorporation and evolution in solid oxide fuel and electrolysis cells,
respectively, play a significant role in determining the cell efficiency and lifetime. Desired
improvements in catalytic activity for rapid surface oxygen exchange, fast bulk transport
(electronic and ionic), and thermo-chemo-mechanical stability of oxygen electrodes will
require increased understanding of the impact of both bulk and surface chemistry on these …