Possible trivacancy contribution to ionic conductivity

Possible trivacancy contribution to ionic conductivity

Contribution to the Conductivity of Bc 3

Recently the new graphitic material, BC 3, has been shown to exhibit electrical conductance which is 10% larger than graphite. In order to explain this behavior we show that in the BC 3 monolayer the Fermi level lies at the top of the o bands and that the semimetallic behavior, which appears upon stacking of the semiconducting monolayers, arises from the simultaneous presence of o and ~ bands a...

ionic conductivity in barium hydride

With hydrogen being seen as a key renewable energy vector, the search for materials exhibiting fast hydrogen transport becomes ever more important. Not only do hydrogen storage materials require high mobility of hydrogen in the solid state, but the efficiency of electrochemical devices is also largely determined by fast ionic transport. Although the heavy alkaline earth hydrides are of limited ...

Enhancing grain boundary ionic conductivity in mixed ionic–electronic conductors

Mixed ionic-electronic conductors are widely used in devices for energy conversion and storage. Grain boundaries in these materials have nanoscale spatial dimensions, which can generate substantial resistance to ionic transport due to dopant segregation. Here, we report the concept of targeted phase formation in a Ce0.8Gd0.2O2-δ-CoFe2O4 composite that serves to enhance the grain boundary ionic ...

Effects of Plastic Deformation on Ionic Conductivity

The principal effects of plastic deformation on the low-temperature conductivity of alkali halide crystals are summarised and interpreted as follows : 1. The high conductivity during deformation is due to the movement of charged dislocations under the forces exerted simultaneously by the stress and the applied electric field. 2. The increased conductivity following deformation which subsequentl...