Average and local structures of BaSnInO as electrolyte for solid oxide fuel cell analyzed by neutron diffraction

Igawa, Naoki   ; Kodama, Katsuaki   ; Taguchi, Tomitsugu*; Yoshida, Yukihiko*; Matsukawa, Takeshi*; Hoshikawa, Akinori*; Ishigaki, Toru*

The average and local structures of BaSnInO which is one of the excellent solid electrolytes for solid oxide fuel cells were analyzed by using the Rietveld method and the Atomic Pair Distribution Function (PDF) analysis method with the neutron diffraction to research the crystal structural effect on the electrical properties. PDF profile which was obtained from the neutron diffraction data of BaSnInO was fitted by using the crystal structure with the space group, -3 which corresponds with the average structure, and the fitting relatively good reproduces the observed data. In this work, the relationship between the average and local structures of hydrogen doped and undoped BaSnInO will be discussed.