Novel Protonic Conductor SrLaScO with Layered Structure for Electrochemical Devices.

Novel materials with target properties for different electrochemical energy conversion and storage devices are currently being actively created and investigated. Materials with high level of protonic conductivity are attracting attention as electrolytes for solid oxide fuel cells and electrolyzers. Though many materials are being investigated as potential electrolytic components for these devices, many problems exist, including comparability between electrodes and electrolytes.

Novel High Conductive Ceramic Materials Based on Two-Layer Perovskite BaLaInO.

The tasks of quality environmental improvement and the development of new energy sources are very relevant. Hydrogen-operating electrochemical devices are strongly needed innovative ceramic materials with target properties, one of which is a high level of proton conductivity. It this paper, the possibility of proton conductivity in acceptor-doped two-layer compositions based on BaLaInO was proved for the first time.

Proton Transport in the Gadolinium-Doped Layered Perovskite BaLaInO.

Materials capable for use in energy generation have been actively investigated recently. Thermoelectrics, photovoltaics and electronic/ionic conductors are considered as a part of the modern energy system. Layered perovskites have many attractions, as materials with high conductivity.

The GdMgZrO Solid Solution: Ionic Conductivity and Chemical Stability in the Melt of LiCl-LiO.

Materials with pyrochlore structure A2B2O7 have attracted considerable attention owing to their various applications as catalysts, sensors, electrolytes, electrodes, and magnets due to the unique crystal structure and thermal stability. At the same time, the possibility of using such materials for electrochemical applications in salt melts has not been studied. This paper presents the new results of obtaining high-density Mg2+-doped ceramics based on Gd2Zr2O7 with pyrochlore structure and comprehensive investigation of the electrical properties and chemical stability in a lithium chloride melt with additives of various concentrations of lithium oxide, performed for the first time.

Proton and Oxygen-Ion Conductivities of Hexagonal Perovskite BaInAlZrO.

The hexagonal perovskite Ba5In2Al2ZrO13 and In3+-doped phase Ba5In2.1Al2Zr0.9O12.

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.

Materials ALnInO with Ruddlesden-Popper Structure for Electrochemical Applications: Relationship between Ion (Oxygen-Ion, Proton) Conductivity, Water Uptake, and Structural Changes.

In this paper, the review of the new class of ionic conductors was made. For the last several years, the layered perovskites with Ruddlesden-Popper structure ALnInO attracted attention from the point of view of possibility of the realization of ionic transport. The materials based on Ba(Sr)La(Nd)InO and the various doped compositions were investigated as oxygen-ion and proton conductors.

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.