Sökning: "local ion density"
Visar resultat 1 - 5 av 39 avhandlingar innehållade orden local ion density.
1. Aromatic Polymers Functionalized with Anionic and Cationic Groups for Ion Exchange Membranes
Sammanfattning : Fuel cells, redox flow batteries and some water desalination technologies such as reverse osmosis and electrodialysis require efficient ion exchange membranes to perform in an optimum way. Thus, by enhancing the properties of these membranes there is a possibility to improve this type of applications and technologies. LÄS MER
2. Local structure in disordered materials studied by neutron scattering and RMC modelling
Sammanfattning : Different disordered materials are becoming more and more important in various technological applications. There is a need to improve our detailed understanding of the local structure of such materials and how the atomic structure is related to macroscopic physical properties. LÄS MER
3. Application of cluster calculations for the interpretation of electron and ion emission from ionic crystals
Sammanfattning : .... LÄS MER
4. Vibrational and Structural Characterisation in Two Perovskite Challenges: A Density Functional Theory Study
Sammanfattning : The modelling of perovskites using density functional theory (DFT) can sometimes be a challenge with many different states very close in energy. In particular, the tilting of the inscribed octahedron, as well as the formation of electron polarons, leads to states with energy differences in the meV range. LÄS MER
5. Neutron spectroscopy and computational studies of hydride-ion dynamics in oxide- and nitride-hydride materials
Sammanfattning : This thesis presents studies of the hydride-ion dynamics in the nitride- and oxidehydride materials Ca3CrN3H and BaTiO3-xHx (with x < 0.2). LÄS MER