Taliehsadat Alebrahim, Liang Huang, Heshali K Welgama, Narjes Esmaeili, Erda Deng, Shiwang Cheng, Durga Acharya, Cara M Doherty, Anita J Hill, Clayton Rumsey, Martin Trebbin, Timothy R Cook, Haiqing Lin
Mixed matrix materials (MMMs) containing metal-organic framework (MOF) nanoparticles are attractive for membrane carbon capture. Particularly, adding <5 mass % MOFs in polymers dramatically increased gas permeability, far surpassing the Maxwell model's prediction. However, no sound mechanisms have been offered to explain this unusual low-loading phenomenon. Herein, we design an ideal series of MMMs containing polyethers (one of the leading polymers for CO2 /N2 separation) and discrete metal-organic polyhedra (MOPs) with cage sizes of 2-5 nm...
February 19, 2024: ACS Applied Materials & Interfaces