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Enabling Fluorinated MOF‐Based Membranes for Simultaneous Removal of H2S and CO2 from Natural Gas
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-10-11 , DOI: 10.1002/anie.201808991
Gongping Liu 1, 2 , Amandine Cadiau 3 , Yang Liu 1 , Karim Adil 3 , Valeriya Chernikova 3 , Ionela-Daniela Carja 3 , Youssef Belmabkhout 3 , Madhavan Karunakaran 3 , Osama Shekhah 3 , Chen Zhang 1 , Arun K. Itta 1 , Shouliang Yi 1 , Mohamed Eddaoudi 3 , William J. Koros 1
Affiliation  

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 H2S and CO2 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.

中文翻译:

启用基于MOF的氟化膜同时去除天然气中的H2S和CO2

基于膜的气体分离是节能的过程。但是,开发高性能膜以替代传统的分离方法仍然面临着重大挑战。本文报道了一种新的基于氟化物的基于MOF的混合基质膜,该膜是通过将MOF晶体通过一种简便的混合基质方法掺入选定的聚合物中而形成的。通过精细控制通道中通过金属柱调节的MOF孔和MOF聚合物界面中的分子传输,所得的氟化MOF基膜表现出出色的分子筛特性。这些材料在同时去除H 2 S和CO 2方面明显优于最新的膜天然气—具有挑战性且在经济上很重要的应用。强大的氟化MOF(NbOFFIVE-1-Ni,AlFFIVE-1-Ni)为有效的膜分离过程铺平了道路,该过程要求精确区分大小相近的分子。
更新日期:2018-10-11
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