Novel CO ₂-tolerant ion-transporting ceramic membranes with an external short circuit for oxygen separation at intermediate temperatures

Here we report a new concept for oxygen separation by the oxygen ion conducting ceramic membrane with an external short circuit. With the strong chemical stability against acidic gases like CO ₂ and the higher oxygen fluxes at lower temperatures, this novel membrane concept could possibly result in a breakthrough for tonnage oxygen production to improve the viability of these clean energy technologies.