Chemical Compatibility and Electrochemical Performance of BaTaMoO Electrolytes for Solid Oxide Fuel Cells.

Hexagonal perovskite-related oxides BaTaMoO (BTM) have recently been reported as promising electrolyte materials for intermediate-temperature solid oxide fuel cells (IT-SOFCs). In this work, sintering properties, thermal expansion coefficient, and chemical stability of BTM were studied. In particular, the chemical compatibilities of (LaSr)MnO (LSM), LaSrCoO (LSC), LaSrCoFeO (LSCF), PrBaMnO (PBM), SrFeMoO (SFM), BaCoFeZrYO (BCFZY), and NiO electrode materials with the BTM electrolyte were evaluated.