Oxides with perovskite-like structures, Sr10-x/2BixFe20Oy, where x was equal to 4, 6, 8 or 10, were synthesized. These oxides exhibited high O permeabilities. The O permeation rate at 1150K was equal to 0.90mlSTD/cm2min, for x = 10, and equal to 0.41mlSTD/cm2min for x = 6.

S.Li, W.Yang, L.Fang, L.Lin: Journal of Solid State Chemistry, 1997, 130[2], 316-8