Layered Perovskites BaMInO (M = La, Nd): From the Structure to the Ionic (O, H) Conductivity.

The design of new oxide compounds that can be used as oxygen- or proton-conducting electrolytes for solid oxide fuel cells is actively in progress. Despite the intensive research activities regarding electrolytes with perovskite/fluorite structures, the search for other structural alternatives is of paramount importance. In this study we focus on a novel material with significantly improved properties for the electrochemical purposes.

Simultaneous Hetero- and Isovalent Doping as the Strategy for Improving Transport Properties of Proton Conductors Based on BaLaInO.

This work focused on the novel electrochemical energy material with significantly improved electrical properties. The novel complex oxide BaLaInYO with layered perovskite structure was obtained for the first time. It was proven that the simultaneous introduction of barium and yttrium ions in the structure of BaLaInO leads to the increase in the unit cell volume of up to 4% and water uptake by about three times.

Band gap engineering and transport properties of BaInO: effect of fluorine doping and hydration.

Two types of fluorine doped barium indate solid solutions were prepared by a solid state method: BaInOF (x = 0, 0.1, 0.2) and BaInOF (y = 0, 0.

Incorporation and Conduction of Protons in Ca, Sr, Ba-Doped BaLaInO with Ruddlesden-Popper Structure.

The new phases BaLaMInO (M = Ca, Sr, Ba) with a Ruddlesden-Popper structure were obtained. It was established that all investigated samples were capable for the water uptake from the gas phase. The ability of water incorporation was due to not only by the presence of oxygen vacancies, but also due to the presence of La-O blocks in the structure.