Temporäre Einträge

For the separation of hydrogen isotopes (H2/D2), traditional kinetic quantum sieving (KQS) takes advantage of the diffusion barriers created by the flexibility of organic linkers and the breathing frameworks in porous solids. While the phenomena have been observed typically below 77 K, in this study, we present that a copper-based zeolite imidazolate framework (Cu-ZIF-gis) can show KQS above 120 K. [...]

The continuous displacive phase transition in SrTiO3 near 𝑇𝑐≈105 K features a central elastic peak in neutron-scattering investigations at temperatures above 𝑇𝑐, i.e., before the corresponding soft phonon mode is overdamped upon cooling. The origin of this central peak is still not understood. [...]