Advanced Materials, Vol.22, No.21, 2367-2370, 2010
High-Performance Oxygen-Permeable Membranes with an Asymmetric Structure Using Ba0.95La0.05FeO3-delta Perovskite-Type Oxide
High oxygen permeability was achieved using an asymmetric Ba0.95La0.05FeO3-delta membrane. In this membrane, oxygen diffuses physically through pores of a porous support and oxygen permeates electrochemically through a dense layer. The oxygen permeation flux of the asymmetric Ba0.95La0.05FeO3-delta membrane reached more than 10 cm(3) (STP) min(-1) cm(-2) from a test gas containing 50% oxygen at 930 degrees C.