Lattice-driven gating in a Cu-based zeolitic imidazolate framework for efficient high-temperature hydrogen isotope separation

Using lattice-driven gating, a copper-based zeolitic imidazolate framework (Cu-ZIF-gis) with ultra-narrow 2.4 Å channels demonstrates efficient hydrogen isotope separation at high temperatures (above 120 K). This innovation leverages temperature-induced aperture adjustments to achieve sustainable and energy-efficient isotope separation, which is suitable for integration with existing LNG cryogenic infrastructure.