Mixed conductor

[1][2][3] Due to the mixed conduction, a formally neutral species can transport in a solid and therefore mass storage and redistribution are enabled.

[3] Strontium titanate (SrTiO3), titanium dioxide (TiO2), (La,Ba,Sr)(Mn,Fe,Co)O3−d,La2CuO4+d, cerium(IV) oxide (CeO2), lithium iron phosphate (LiFePO4), and LiMnPO4 are examples of mixed conductors.

[6] These materials are desirable for the ability to tune their properties for specific applications by adjusting concentration levels to achieve optimal electron and ion transport.

[8] One of the most commonly used oxygen electrode (cathode) materials is the H-MIEC LSM-YSZ, consisting of lanthanum strontium manganite (LSM) infiltrated onto a Y2O3-doped ZrO2 scaffold.

[9] The LSM nanoparticles are deposited on the walls of the porous YSZ scaffold to provide an electronically conductive pathway and a high density of TPBs for the reduction reaction to occur.

Cerium oxide is a potent mixed conductor. [ 1 ]
Schematic of a solid oxide fuel cell. Note that the cathode material must conduct both oxygen ions and electrons.