Core-shell polysiloxane-MOF 5 microspheres as a stationary phase for gas-solid chromatographic separation

Core-shell poly(dimethylsiloxane) (PDMS)-MOF 5 microspheres were prepared by directed crystallization of MOF 5 on thermally stable PDMS beads. The microspheres were evaluated for their potential use as a stationary phase for gas-chromatographic separation of permanent gases and liquids, where the issues associated with pressure drop were circumvented. The successful demonstration of this simple and versatile methodology widens the scope for large-scale application of Metal-Organic Frameworks (MOFs) in chromatographic separation.