6533b872fe1ef96bd12d4377
RESEARCH PRODUCT
Enhanced quantum sieving of hydrogen isotopes via molecular rearrangement of the adsorbed phase in chabazite
Jean-pierre BellatIgor BezverkhyyJean-marc SimonMathieu MacaudBastien RadolaJosé Marcos Salazarsubject
ChabaziteHydrogenchemistry.chemical_element02 engineering and technology010402 general chemistry01 natural sciencesCatalysisAdsorptionPhase (matter)Materials ChemistryMolecular rearrangementQuantumComputingMilieux_MISCELLANEOUSIsotopeMetals and AlloysGeneral Chemistry[CHIM.MATE]Chemical Sciences/Material chemistry021001 nanoscience & nanotechnology3. Good health0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic Materials[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistrychemistryChemical physicsCeramics and Composites0210 nano-technologySelectivitydescription
Coadsorption experiments reveal an unexpected increase of the D2/H2 selectivity with loading in pure silica chabazite at 47 K. This effect is correlated with the appearance of a step in the adsorption isotherms of H2 and D2. Grand canonical Monte Carlo simulations show that this phenomenon is related to a molecular rearrangement of the adsorbed phase induced by its strong confinement. In the case of a H2 and D2 mixture, this rearrangement favors the adsorption of D2 having a smaller size due to quantum effects.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-05-21 |