Local and average structures of the proton conducting Y-doped BaCeO_3 from neutron diffraction and neutron pair distribution function analysis

摘要

In this paper we investigated the most important family of proton conducting oxides, i.e., cerates, by means of neutron diffraction and of pair distribution function analysis (PDF). The paper describes the structural effects of Y-doping and water incorporation in cerates proton conductors from a viewpoint of the average structure (determined from diffraction) and the local structure (determined from PDF analysis).