Local structure in layered perovskite oxides - probing ion transport in fuel cell electrodes

Layered oxides are increasingly attractive as electrode materials in energy technology applications, such as fuel cells, electrolysers and permeation membranes. As the structures become more complex it is essential that a detailed understanding of the evolution of any cation ordering and related anion migration pathways is determined. Here we are focussed on the Ruddlesden-Popper series of oxides with a mixed A site (La and Pr)and wish to probe the temperature evolution of cation ordering, as well as the evolution of oxygen vacancies, which will provide insight into the oxygen transport pathways.