High‐Performance Oxygen‐Permeable Membranes with an Asymmetric Structure Using Ba0.95La0.05FeO3−δ Perovskite‐Type Oxide

High oxygen permeability was achieved using an asymmetric Ba0.95La0.05FeO3−δ 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−δ membrane reached more than 10 cm3 (STP) min−1 cm−2 from a test gas containing 50% oxygen at 930 °C. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.