TY - JOUR
T1 - Nanoporous Fluorinated Metal-Organic Framework-Based Membranes for CO2Capture
AU - Chernikova, Valeriya
AU - Shekhah, Osama
AU - Belmabkhout, Youssef
AU - Eddaoudi, Mohamed
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors gratefully acknowledge the financial support from King Abdullah University of Science and Technology (KAUST).
PY - 2020/6/12
Y1 - 2020/6/12
N2 - The search for effective carbon-capture materials has permitted the disclosure and institution of nanoporous fluorinated metal-organic frameworks (MOFs) with a contracted pore system as benchmark CO2-selective adsorbents. Namely, the SIFSIX-3-M (M = Zn, Cu, and Ni) MOF adsorbents, encompassing a periodic arrangement of fluorine moieties in a confined one-dimensional channels, exhibit a remarkable CO2 adsorption-based selectivity over CH4 and H2 in various industrially related gas mixtures. Here, we report the successful transplantation/integration of this distinctive CO2 selectivity, distinguishing this class of nanoporous MOF adsorbents to pure MOF membranes for carbon capture. Markedly, the liquid-phase epitaxy (LPE) growth approach permitted, for the first time, the building of continuous, homogeneous, and defect-free MOF membranes based on the SIFSIX-3-M platform, MSiF6(Pyz)2 with M = Ni or Cu, on a porous alumina substrate. Single and mixed-gas permeation tests revealed that the resulting nanoporous MOF membrane is a CO2-selective membrane, exhibiting the foreseen favorable CO2-selectivity toward carbon dioxide over H2, and CH4, governed by the CO2-selective adsorption in the functional and contracted channels of the SIFSIX-3-M.
AB - The search for effective carbon-capture materials has permitted the disclosure and institution of nanoporous fluorinated metal-organic frameworks (MOFs) with a contracted pore system as benchmark CO2-selective adsorbents. Namely, the SIFSIX-3-M (M = Zn, Cu, and Ni) MOF adsorbents, encompassing a periodic arrangement of fluorine moieties in a confined one-dimensional channels, exhibit a remarkable CO2 adsorption-based selectivity over CH4 and H2 in various industrially related gas mixtures. Here, we report the successful transplantation/integration of this distinctive CO2 selectivity, distinguishing this class of nanoporous MOF adsorbents to pure MOF membranes for carbon capture. Markedly, the liquid-phase epitaxy (LPE) growth approach permitted, for the first time, the building of continuous, homogeneous, and defect-free MOF membranes based on the SIFSIX-3-M platform, MSiF6(Pyz)2 with M = Ni or Cu, on a porous alumina substrate. Single and mixed-gas permeation tests revealed that the resulting nanoporous MOF membrane is a CO2-selective membrane, exhibiting the foreseen favorable CO2-selectivity toward carbon dioxide over H2, and CH4, governed by the CO2-selective adsorption in the functional and contracted channels of the SIFSIX-3-M.
UR - http://hdl.handle.net/10754/665315
UR - https://pubs.acs.org/doi/10.1021/acsanm.0c00909
UR - http://www.scopus.com/inward/record.url?scp=85091012230&partnerID=8YFLogxK
U2 - 10.1021/acsanm.0c00909
DO - 10.1021/acsanm.0c00909
M3 - Article
SN - 2574-0970
VL - 3
SP - 6432
EP - 6439
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 7
ER -