Valence Variability Induced in SrMoO₃ Perovskite by Mn Doping: Evaluation of a New Family of Anodes for Solid-Oxide Fuel Cells.

ABSTRACT: We report on a series of SrMo_1-xMn_xO_3-δ perovskite oxides designed as potential anode materials for solid oxide fuel cells (SOFCs). These materials were synthesized using a citrate method, yielding scheelite-type precursors with nominal SrMo_1-xMn_xO₄ compositions, which were further reduced to obtain the active perovskite oxides. Their structural evolution was examined through X-ray diffraction (XRD) and neutron powder diffraction (NPD). These techniques provided insights into the crystallographic changes upon Mn doping, revealing key factors influencing ionic conductivity. Whereas the oxidized scheelite precursors are tetragonal, space group I4₁/a, the reduced perovskite specimens are cubic, space group

SUBMITTER: Sanchez de Bustamante L 

PROVIDER: S-EPMC11818537 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature