Gluing Ba0.5Sr0.5Co0.8Fe0.2O3−δ with Co3O4 as a cathode for proton-conducting solid oxide fuel cells

The Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) + Co3O4 composite material is evaluated as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs), which provides new strategy to solve the thermal mismatch problem between and electrolyte without impairing performance. BSCF well-known intermediate-temperature SOFCs, but its performance H-SOFCs unsatisfactory. One reason relatively low poor contact due high expansion of BSCF. melting point taken in this study an advantage bond electrolyte, mitigating with electrolyte. Furthermore, addition promotes catalytic activity demonstrated by experimental studies first-principles calculations, leading impressively BSCF-based cathodes H-SOFCs.