Fig. 3: High chemical stability of Ba2LuAlO5.
From: High proton conduction in Ba2LuAlO5 with highly oxygen-deficient layers
X-ray powder diffraction patterns of Ba2LuAlO5 at room temperature. a As-prepared sample and samples after annealing at 400 °C in b dry O2, c dry 5% H2 in N2, d wet air [H2O vapor pressure of 0.021 atm] (100 mL min−1) for 24 h. There are no additional peaks in these XRPD patterns after annealing, which indicates the high chemical stability of Ba2LuAlO5 in dry O2, dry 5% H2 in N2, and wet air.
