Electrical and mass transport processes in molten oxide membranes

A review of the transport properties of molten oxide membranes (MOMs) is given. The MOMs are a new type of mixed-conducting membranes for oxygen separation from air. The rapidly expanding field of ion transport membranes is driven by a growing number of potential applications (fuel cells, membrane reactors, oxygen separators, sensors, etc.). Special attention is paid to the oxygen ion transport in MOM. The oxygen permeation kinetics and thermodynamics of MOM are considered. A dynamic polymer chain model for oxygen ion transport in molten oxides is analyzed. Prospects of MOM for oxygen technology are discussed.