| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Rochat, Sebastien
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Investigation of the Dynamic Behaviour of H 2 and D 2 in a Kinetic Quantum Sieving Systemcitations
- 2024Removal of antiretroviral drugs from wastewater using activated macadamia nutshellscitations
- 2024Green and sustainable devulcanization of ground tire rubber using choline chloride–urea deep eutectic solventcitations
- 2024Investigation of the Dynamic Behaviour of H 2 and D 2 in a Kinetic Quantum Sieving Systemcitations
- 2023Hydrogen Sorption on Microporous Carbon/Sulfur Nanocomposite Systemscitations
- 2023Properties and Curing Kinetics of a Processable Binary Benzoxazine Blendcitations
- 2021Solvent sorption-induced actuation of composites based on a polymer of intrinsic microporositycitations
- 2021Solvent Sorption-Induced Actuation of Composites Based on a Polymer of Intrinsic Microporositycitations
- 2018Polymer of Intrinsic Microporosity (PIM-7) Coating Affects Triphasic Palladium Electrocatalysiscitations
- 2017AFM imaging and nanoindentation of polymer of intrinsic microporosity PIM-1citations
Places of action
| Organizations | Location | People |
|---|
article
Investigation of the Dynamic Behaviour of H 2 and D 2 in a Kinetic Quantum Sieving System
Abstract
Porous organic cages (POCs) are nanoporous materials composed of discrete molecular units that have uniformly distributed functional pores. The intrinsic porosity of these structures can be tuned accurately at the nanoscale by altering the size of the porous molecules, particularly to an optimal size of 3.6 Å, to harness the kinetic quantum sieving effect. Previous research on POCs for isotope separation has predominantly centered on differences in the quantities of adsorbed isotopes. However, nuclear quantum effects also contribute significantly to the dynamics of the sorption process, offering additional opportunities for separating H2 and D2 at practical operational temperatures. In this study, our investigations into H2 and D2 sorption on POC samples revealed a higher uptake of D2 compared to that of H2 under identical conditions. We employed quasi-elastic neutron scattering to study the diffusion processes of D2 and H2 in the POCs across various temperature and pressure ranges. Additionally, neutron Compton scattering was utilized to measure the values of the nuclear zero-point energy of individual isotopic species in D2 and H2. The results indicate that the diffusion coefficient of D2 is approximately one-sixth that of H2 in the POC due to the nuclear quantum effect. Furthermore, the results reveal that at 77 K, D2 has longer residence times compared to H2 when moving from pore to pore. Consequently, using the kinetic difference of H2 and D2 in a porous POC system enables hydrogen isotope separation using a temperature or pressure swing system at around liquid nitrogen temperatures.