High-performance proton-conducting solid oxide fuel cells using the first-generation Sr-doped LaMnO3 cathode tailored with Zn ions

Sr-doped LaMnO3 (LSM) which is the first-generation cathode for solid oxide fuel cells (SOFCs) has been tailored with Zn ions, aiming to achieve improved protonation ability proton-conducting SOFCs (H-SOFCs). The new Sr and co-doped (LSMZ) can be successfully synthesized. first-principle studies indicate that LSMZ improves of LSM decreases barriers oxygen vacancy formation, leading high performance cathode-based cells. proposed cell shows highest among ever reported LSM-based H-SOFCs. In addition, superior does not impair its stability. stable against CO2, as demonstrated by both in-situ CO2 corrosion tests first-principles calculations, good long-term stability cell. Zn-doping strategy traditional brings back intermediate temperatures paves a way research on materials cathodes SOFCs.