Adsorption Studies of Dilute Krypton and Xenon from Nitrogen on SBMOF‑1 and Activated Charcoal for Applications in Isotope Harvesting.

ABSTRACT: Adsorptive partitioning of dilute krypton (Kr) and xenon (Xe) onto Stony Brook Metal-Organic Framework (SBMOF-1) and activated charcoal (AC) from carrier nitrogen was experimentally measured at temperatures ranging from 195 to 293 K. For this purpose, a closed-loop system for gas adsorption experiments was developed. From the Kr adsorption measurements, the adsorption equilibrium constant for Kr on SBMOF-1 was calculated, yielding a value for the enthalpy of adsorption of -19 ± 1 kJ·mol^-1. The partition coefficients were utilized to estimate the extraction rates of ⁷⁶Kr, ⁷⁷Kr, and ¹²²Xe isotopes during isotope harvesting at the Facility for Rare Isotope Beams (FRIB). We conclude that both materials showed promising results for the extraction of n

SUBMITTER: Bodnar VS 

PROVIDER: S-EPMC12319903 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature