Performance and Durability of Reversible Solid Oxide Cells with Nano-electrocatalysts Infiltrated Electrodes

Abstract This work focuses on improving the durability of Ni/yttria-stabilized zirconia (YSZ) fuel electrode-supported solid oxide cells under reversible operation mode by infiltrating nano-sized electrocatalysts into both electrodes. The resulting cell consists a CGO (Gd-doped CeO 2 ) scaffold-based oxygen electrode that is infiltrated with LSC (La 0.6 Sr 0.4 CoO 3-δ and CGPO (Gd, Pr-co-doped nanocomposite infiltrates Ni/YSZ modified nano-CGO infiltrates. Constant-current tests at + 0.5 A/cm − are carried out, followed cycling between fuel-cell electrolysis modes ± 1.25 . Under , showed lower degradation rates than single operation, voltage 1.23%/kh in 0.53%/kh mode. During overall rate was only 0.46%/kh. Compared to previously tested electrodes, this shows better less half previous tests. results demonstrate nano-electrocatalysts electrodes an effective solution boost performance operation.