Conduction properties of oxide ion conductor Ca_(12)AI_(14)O_(33) prepared with solution-synthesized powders

摘要

Ca_(12)Al_(14)O_(33) called C12A7) is a well-known compound in the field of cement science. Ci2A7 has recently been proved to be an oxide ion conductor at high temperature [1]. The ionic conductivity is as high as one-tenth that of Y2O3-stabilized ZrO2, which has been the exclusive candidate as the electrolyte for fuel cells.