Robust Microporous Porphyrin-Based Hydrogen-Bonded Organic Framework for Highly Selective Separation of C2 Hydrocarbons versus Methane

A microporous porphyrin-based hydrogen-bonded organic framework, named PFC-5, was precisely designed and successfully constructed. Because of the present of multiple hydrogen bondings and π–π interactions between porphyrinic ligands, PFC-5 possesses a robust framework with excellent water, thermal, and chemical stability. A CO2 sorption isotherm demonstrated that PFC-5 possesses permanent microporosity after activation. The obtained material has been explored for highly selective C2 light hydrocarbons/CH4 separations at room temperature and normal pressure.