Al2O3-SrCo0.6Fe0.4O3 Membrane Coated on a Meso-Porous Al2O3 Support

In this work, a membrane for oxygen separation from air was a composite system with a mesoporous alumina support and a thin layer with microporous structures. The support was formed into a disc shape using alumina powder following a press-calcination process and subsequently, a nanoscale pore membrane with narrow pore size distribution was infused following a sol-gel approach. The sol-gel method entailed the use of a stable sol prepared from an organo-metallic oxide precursor, followed by deposition of the sol onto the porous support via dip coating. The sol hardened upon drying, and forms thin Al2O3SrCo0.6Fe0.4O3 active layer after sintering.