Electrochemical performance improved with respect to state of the art solid oxide electrolysis cells

A current density of -1.2 A/cm² was achieved at 700 °C by modifying the O2 electrode with two key improvements, as recommended by modeling activities: (i) a finer microstructure; (ii) the incorporation of PrOx nanoparticles as an electrocatalyst into the LSCF-CGO MIEC backbone. 

High performances were obtained at 675 and 700°C; at 700°C, the current density exceeds 1.2 A/cm² at 1.4V, and reaches almost 1 A/cm² at 1.4V at 675°C.
The electrochemical performances are compared to a baseline cell with the same layers but with a coarser microstructure and no PrOx, demonstrating significant improvements.