Physics

Meteorology

Nanotechnology

Organic chemistry

Metal-organic framework

Gas separation

Sulfur hexafluoride

Membrane

Porosity

Adsorption

Engineering

Composite material

Chemistry

Bar (unit)

Metallurgy

Materials science

Sulfur

Metal

Chemical engineering

Biochemistry

Angewandte Chemie International Edition

In the electronics industry, the efficient recovery and capture of sulfur hexafluoride (SF6 ) from SF6 /N2 mixtures is of great importance. Herein, three metal-organic frameworks with fine-tuning pore structures, Cu(peba)2 , Ni(pba)2 , and Ni(ina)2 , were designed for SF6 capture. Among them, Ni(ina)2 has perfect pore sizes (6 Å) that are comparable to the kinetic diameter of sulfur hexafluoride (5.2 Å), affording the benchmark binding affinity for SF6 gas. Ni(ina)2 exhibits the highest SF6 /N2 selectivity (375.1 at 298 K and 1 bar) and ultra-high SF6 uptake capacity (53.5 cm3 g-1 at 298 K and 0.1 bar) at ambient conditions. The remarkable separation performance of Ni(ina)2 was verified by dynamic breakthrough experiments. Theoretical calculations and the SF6 -loaded single-crystal structure provided critical insight into the adsorption/separation mechanism. This porous coordination network has the potential to be used in industrial applications.

Pore‐Structure Control in Metal–Organic Frameworks (MOFs) for Capture of the Greenhouse Gas SF<sub>6</sub>with Record Separation

Pore‐Structure Control in Metal–Organic Frameworks (MOFs) for Capture of the Greenhouse Gas SF6with Record Separation

Pore‐Structure Control in Metal–Organic Frameworks (MOFs) for Capture of the Greenhouse Gas SF₆with Record Separation