Improving the ionic conductivity of solid electrolytes at low temperatures represents a major challenge and an opportunity for enabling a variety of solid-state ionic devices for energy conversion and storage, as well as for environmental protection. Here we report a giant ionic conductivity of 0.20 Scm(-1), achieved at 500 °C, in the La2Mo2O9 nanowires with a bamboo-wire morphology, correspond...

We study the effect of the surface adsorption of a variety of common laboratory solvents on the conductivity at the interface between LaAlO3 and SrTiO3. This interface possesses a range of intriguing physics, notably a proposed connection between the surface state of the LaAlO3 and the conductivity buried in the SrTiO3. We show that the application of chemicals such as acetone, ethanol, and wat...

Zeta potential is a physicochemical parameter of particular importance in describing ion adsorption and double layer interactions between charged particles. However, for metal-oxide nanoparticles, the conversion of electrophoretic mobility measurements into zeta potentials is difficult. This is due to their very high surface electrical conductivity, which is inversely proportional to the size o...

The catalytic layers of a low temperature fuel cell must present a sufficient electronic conductivity for a high overall performance and, in this sense, the electrocatalyst support plays an important role. However, regarding carbon nanofibers as support, it is necessary to chemically treat their surface to improve both metal deposition and anchorage, which unfortunately affects negatively the e...

The purpose of this study was to discover the cause and magnitude of changes in the body-surface potentials occurring when: (1) fluids of various conductivity were added to the pericardial sac, or (2) the volume of the blood within chambers of the heart was either increased or decreased. Fluids added to the pericardium were physiological saline, whole-blood, and mineral oil. Magnitudes of body-...

A variational method is given for determining the essential supremum of the surface conductivity of a partially coated anisotropic dielectric medium from a knowledge of the far field pattern of the time-harmonic electric field at fixed frequency corresponding to an incident plane wave. It is assumed that the shape of the scatterer has been determined (e.g. by solving the far field equation and ...

Precipitated calcium carbonate (PCC) was prepared by means of semicontinuous carbonation of Ca(OH)2 suspension, at 35 and 45 °C and in the presence of non-ionic dextran and dextran sulfate. The carbonation process was regulated at different predetermined values of electrical conductivity, that corresponded to different concentrations of dissolved Ca(OH)2: 0.5 mS cm < κ25 < 5.0 mS cm. The result...