This Review presents an overview from the perspective of tetrahedral chemistry on various
oxide ion-conducting materials containing tetrahedral moieties which have received …

Oxide-ion conductors, also known as “oxygen ion conductors,” have garnered significant
attention in recent years due to their extensive applications in a variety of electrochemical …

Hexagonal perovskite-related oxides have garnered a great deal of research interest
because of their high oxide-ion conductivity at intermediate temperatures, with …

Developments in solid oxide-ion (O2−) conductors have led to various energy and
environmental technologies, such as gas sensors, solid oxide fuel cells (SOFCs) and …

In this work, we have discovered Ca3Ga4O9 as a rare-earth-free oxide-ion conductor by a
combined technique of bond valence (BV)-based energy calculations, synthesis, and …

Oxide-ion and proton conductors have found a wide variety of applications such as sensors,
catalysts, and solid oxide fuel cells (SOFCs). 1) 29) To develop better electrolytes for …

Ceramic oxide-ion conductors have attracted considerable attention because of their
potential applications such as solid oxide fuel cells (SOFCs), catalysts, gas sensors, and …

The disk-shaped sintered compacts consisting mainly of c-axis-aligned lanthanum silicate
oxyapatite (LSO) polycrystals doped with K 2 O and Al 2 O 3 were prepared by templated …

Keeping the stoichiometry at the optimal value required for electrical conduction throughout
polycrystalline ceramics is crucial for various polycrystalline oxygen ion conductors. Using …

Apatite-type lanthanum silicate (LSO) is a material with high oxide-ion conductivity in the low-
and intermediate-temperature range (573–873 K) and is, therefore, a promising solid …