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Enabling Fluorinated MOF‐Based Membranes for Simultaneous Removal of H 2 S and CO 2 from Natural Gas
Author(s) -
Liu Gongping,
Cadiau Amandine,
Liu Yang,
Adil Karim,
Chernikova Valeriya,
Carja IonelaDaniela,
Belmabkhout Youssef,
Karunakaran Madhavan,
Shekhah Osama,
Zhang Chen,
Itta Arun K.,
Yi Shouliang,
Eddaoudi Mohamed,
Koros William J.
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201808991
Subject(s) - membrane , gas separation , polymer , metal organic framework , natural gas , molecule , materials science , chemical engineering , polymeric membrane , nanotechnology , matrix (chemical analysis) , chemistry , organic chemistry , adsorption , composite material , biochemistry , engineering
Membrane‐based gas separations are energy efficient processes; however, major challenges remain to develop high‐performance membranes enabling the replacement of conventional separation processes. Herein, a new fluorinated MOF‐based mixed‐matrix membrane is reported, which is formed by incorporating the MOF crystals into selected polymers via a facile mixed‐matrix approach. By finely controlling the molecular transport in the channels through the MOF apertures tuned by metal pillars and at the MOF‐polymer interfaces, the resulting fluorinated MOF‐based membranes exhibit excellent molecular sieving properties. These materials significantly outperform state‐of‐the‐art membranes for simultaneous removal of H 2 S and CO 2 from natural gas—a challenging and economically important application. The robust fluorinated MOFs (NbOFFIVE‐1‐Ni, AlFFIVE‐1‐Ni), pave a way to efficient membrane separation processes that require precise discrimination of closely sized molecules.