Metal–Organic Framework with Open Metal Sites for D<sub>2</sub>/H<sub>2</sub> Separation
Yunpeng Huang, Zhanfeng Ju, Kongzhao Su, Wenjing Wang, Daqiang Yuan
Abstract
The separation of hydrogen isotopes remains a significant challenge due to their nearly identical physicochemical properties. Recently, metal–organic frameworks employing the chemical affinity quantum sieving effect have garnered increasing attention for hydrogen isotope separation. In this study, Cu-BTT with open metal sites was synthesized and demonstrated high hydrogen isotope adsorption capacities of 266 cm 3 /g for H 2 and 288 cm 3 /g for D 2 . Dynamic breakthrough experiments revealed a selectivity of 1.58 at 77 K, highlighting the potential of Cu-BTT as a promising candidate for hydrogen isotope separation.
Topics & Concepts
ChemistryHydrogenHydrogen isotopeMetalIsotope separationIsotopeAdsorptionSelectivityInorganic chemistryMetal-organic frameworkQuantum chemicalPhysical chemistryMoleculeCatalysisOrganic chemistryNuclear physicsPhysicsChemical Synthesis and CharacterizationMetal-Organic Frameworks: Synthesis and ApplicationsHydrogen Storage and Materials