Hydrolytically stable fluorinated metal-organic frameworks for energy-efficient dehydration.

Citation data:

Science (New York, N.Y.), ISSN: 1095-9203, Vol: 356, Issue: 6339, Page: 731-735

Publication Year:
2017
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Repository URL:
http://hdl.handle.net/10754/625006
PMID:
28522529
DOI:
10.1126/science.aam8310
Author(s):
Cadiau, Amandine; Belmabkhout, Youssef; Adil, Karim; Bhatt, Prashant M; Pillai, Renjith S; Shkurenko, Aleksander; Martineau-Corcos, Charlotte; Maurin, Guillaume; Eddaoudi, Mohamed
Publisher(s):
American Association for the Advancement of Science (AAAS)
Tags:
Multidisciplinary
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article description
Natural gas must be dehydrated before it can be transported and used, but conventional drying agents such as activated alumina or inorganic molecular sieves require an energy-intensive desiccant-regeneration step. We report a hydrolytically stable fluorinated metal-organic framework, AlFFIVE-1-Ni (KAUST-8), with a periodic array of open metal coordination sites and fluorine moieties within the contracted square-shaped one-dimensional channel. This material selectively removed water vapor from gas streams containing CO, N, CH, and higher hydrocarbons typical of natural gas, as well as selectively removed both HO and CO in N-containing streams. The complete desorption of the adsorbed water molecules contained by the AlFFIVE-1-Ni sorbent requires relatively moderate temperature (~105°C) and about half the energy input for commonly used desiccants.