Luminescent perovskite nanosheets were prepared by exfoliation of single- or double-layered perovskite oxides, K2Ln2Ti3O10, KLnNb2O7, and RbLnTa2O7 (Ln: lanthanide ion). The thickness of the individual nanosheets corresponded to those of the perovskite block in the parent layered compounds. Intense red and green emissions were observed in aqueous solutions with Gd1.4Eu0.6Ti3O10- and La0.7Tb0.3T...

We report on the electrochemical fluorination of A-site vacant perovskite ReO3 using high-temperature solid-state cells as well room-temperature liquid electrolytes. Using galvanostatic oxidation and impedance spectroscopy, we find that can be oxidized by approximately 0.5 equiv electrons when in contact with fluoride-rich Results from our density functional theory calculations clearly rule out...

Misfit-induced crystallographic alignment of elastic dipoles oxygen vacancies enhances anisotropic lattice strain beyond the misfit magnitude and raises inhomogeneous in epitaxial perovskite oxide films.

The mixed ion-electron conducting perovskite oxide Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) has recently been proposed as a promising cathode material for solid oxide fuel cells. The performance of BSCF for this application is dictated by the structure, oxygen stoichiometry, 3-δ, and chemical and thermal expansion properties of the material. In-situ neutron diffraction provides a novel approach to simul...

Development of alternative ceramic oxide anode materials is a key step for direct hydrocarbon solid oxide fuel cells (SOFCs). Several lanthanide based layered perovskite-structured oxides demonstrate outstanding oxygen diffusion rate, favorable electronic conductivity, and good oxygen surface exchange kinetics, owing to A-site ordered structure in which lanthanide and alkali-earth ions occupy a...

We present an overview on the development of various mixed conducting perovskite-type related structure metal oxides and other crystal structures, composite cathodes for advanced solid oxide fuel cells.

Perovskite-modified electrodes have received increasing attention in the last decade, due to their electrocatalytic properties undergo sensitive and selective detection of bioactive molecules, such as hydrogen peroxide, glucose, dopamine. In this review paper, different types perovskites involved for are described, proposed mechanism is presented. The analytical performances obtained electroact...

In article number 2001482, Helen Hejin Park, Jangwon Seo, and co-workers introduce copper oxide by pulsed-chemical vapor deposition as a buffer layer, which protects the organic hole transport layer from sputtering damage during of transparent conducting oxide. On cover authors illustrate precursors used their approach integrated in semitransparent perovskite solar cell applications.

This article focuses on perovskite materials for application as cathode material in solid oxide fuel cells. In order to develop new promising materials it is helpful to classify already known perovskite materials according to their properties and to identify certain tendencies. Thereby, composition-dependent structural data and materials properties are considered. Structural data under consider...