Hydrogen-bonded hybrid membranes based on hydroxylated metal-organic frameworks and PIM-1 for ultrafast hydrogen separation

Hydrogen-bonded hybrid membranes based on hydroxylated metal-organic frameworks and PIM-1 for ultrafast hydrogen separation

Blog Article

Membrane separation technology provides an alternative to traditional thermally driven separations, owing to its advantages including low cost, energy-savings and environmental friendliness.However, the current membrane technology for gas separations using polymeric materials suffers the challenge transpharm online shopping of gas permeability-selectivity trade-offs.To overcome this hurdle, high-separation performance hybrid membranes are developed herein using microporous UiO-66-(OH)2 and PIM-1.Due to the stable interfacial hydrogen bonding, the MOF loading crosses the percolation threshold in hybrid membranes, and dual-path transport mechanisms govern the gas diffusion.Accordingly, the hybrid membranes with 40 wt% MOF loading exhibit a H2 permeability up to 9167.

6 Barrer, transcending the 2008 H2/CH4 and H2/N2 Robeson upper bounds.Compared to neat PIM-1 membranes with a H2 permeability of 2378.3 Barrer, the H2 permeability of hybrid membranes increases over 285%, demonstrating ultra-high gas permeability.The design approach of echofix spring reverb hybrid membranes provides a viable pathway for the manufacture of hydrogen-bonded hybrid membranes with potential applications for hydrogen separation and CO2 capture.