Custom Formulation of Multicomponent Mixed-Matrix Membranes for Efficient Post-combustion Carbon Capture

Recent Developments in High-Performance Membranes for CO2 Separation

“…However, several studies overcame the trade-off by maintaining high CO 2 selectivity with significant CO 2 permeability [ 3 ]. While some membranes achieved this by crosslinking [ 33 ], others added a third component (another polymer) to create blend polymer-based MMMs [ 34 , 35 ]. More importantly, some of these membranes showed great improvement in decreasing the aging.…”

3D printed MOF-based mixed matrix thin-film composite membranes

“…X-ray photoelectron spectroscopy (XPS) was used as an evidence for the HKUST-1/PIM-1 interaction. 39 The XPS N 1s spectra of PIM-1 revealed two equally intense components to the N 1s spectrum at 397.7 eV and 399.7 eV from the C^N functionality of PIM-1. Upon mixing HKUST-1 with PIM-1, the unsaturated Cu centers on the surface of the HKUST-1 can coordinate with the C^N of PIM-1 resulted in a shi of the 399.7 eV component of the N 1s spectrum to 397.7 eV and an increase in the relative intensity of the other component.…”

“…Upon mixing HKUST-1 with PIM-1, the unsaturated Cu centers on the surface of the HKUST-1 can coordinate with the C^N of PIM-1 resulted in a shi of the 399.7 eV component of the N 1s spectrum to 397.7 eV and an increase in the relative intensity of the other component. 39 The formation of small MOF nanoparticles is highly desirable for the uniform distribution of polymer/MOF solution on the substrate. Therefore, we were able to synthesize HKUST-1 nanoparticles in small sizes of $30-50 nm (Fig.…”

“…The choice of the HKUST-1 as a filler and PIM-1 as a matrix was based on our previous study, 39 which revealed their chemical compatibility and their separation performance. The free nitrile functional groups in the PIM-1 backbone can strongly interact with the unsaturated Cu metal centers of HKUST-1.…”

Polymerizable metal-organic frameworks for the preparation of mixed matrix membranes with enhanced interfacial compatibility

“…However, preparing robust and defect-free MMMs still remains a challenge owing to the poor compatibility between MOF and polymer matrices, as well as the undesired MOF particle sedimentation ( Dong et al., 2013 ; Lin et al., 2018 ; Moore and Koros, 2005 ). Some successful strategies have been developed to construct MOF-based MMMs by chemical modification of MOFs or polymer matrices ( Elsaidi et al., 2020 ; Tien-Binh et al., 2015 ; Venna et al., 2015 ; Wang et al., 2018 ), introduction of MOF/polymer interface layers ( Bastani et al., 2013 ; Feijani et al., 2015 ), and in situ MOF growth by direct admixing MOF precursors in the monomer/polymer solution ( Kertik et al., 2017 ; Ma et al., 2019b ; Shahid et al., 2015 ).…”