Enhanced SOFC Cathode Performance Through Surface Modification of NdBa0.5Sr0.5Co2O5+δ Nanoparticles

The cathode materials fabrication with outstanding performance and stability at intermediate temperatures of 600–800℃ is required for the prospective mass production solid oxide fuel cells (SOFCs). Infiltration a potential method because it has proven successful in cell enhancement. This study mainly focuses on electrical conductivity long-term reliability symmetric NdBa0.5Sr0.5Co2O5+δ (NBSC) fabricated by traditional solid-state reaction techniques. value range 174–278 S.cm-1. Impedance analysis showed that infiltration 0.5M SDC NBSC surface dramatically reduced polarization resistance (Rp) between layers (cathode-electrolyte) from 3.32 Ω.cm2 to 1.82 600℃ or decreased 45 % compared without infiltration. enhanced specimens (NBSC+0.5 M SDC) under SOFC operating conditions proves samples extend their lifetime. Compared cathode, NBSC+0.5 better lower RP 2.35 Ω.cm2. In OPP 0.214-0.0027 atm 800℃, relatively tiny Rp symmetrical 0.030 0.039 Ω.cm2, below 0.15 suitable limit cells.