Oxygen-Ion and Proton Transport in Sc-Doped Layered Perovskite BaLaInO4

The effect of isovalent doping Sc3+ -> In3+ on the transport properties is studied for complex oxide BaLaInO4 characterized by the Ruddlesden-Popper structure. It is shown that the introduction of scandium increases the oxygen-ionic and protonic conductivity. In the humid air atmosphere at 500 degrees C, both BaLaInO4 and BaLaIn0.9Sc0.1O4 are the protonic conductors with similar to 90-95% contribution of proton transfer.

Automated summary

The isovalent doping of Sc3+ -> In3+ enhances the oxygen-ionic and protonic conductivity of complex oxide BaLaInO4 with the Ruddlesden-Popper structure. Both BaLaInO4 and BaLaIn0.9Sc0.1O4 exhibit similar protonic conductivity in humid air atmosphere at 500 degrees C, with approximately 90-95% contribution from proton transfer.