Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 61, Issue 12, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202213190
Keywords
Coordination Chemistry; Metal-Organic Frameworks; Microporous Materials; Structural Collapse; Surface Area
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Funding
- United States Department of Energy BES [DE-SC0004888]
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The solvent dimethyl ether (DME) is effective in activating metal-organic frameworks (MOFs) at low temperatures without changing their structure, resulting in high surface areas.
Metal-organic frameworks (MOFs) are demonstrated to be readily activated by treatment with the low surface tension, low boiling point solvent dimethyl ether (DME). The mildness of the method enables access to high surface areas by avoiding structural changes in the framework that often plague thermal activation methods. A distinction from previous methods is that DME activation succeeds for materials with coordinatively unsaturated sites (CUS) and non-CUS MOFs as well. DME displaces solvent molecules occupying the pores of the MOF as well as those coordinated to metal centers; reducing evacuation temperature by using a coordinating, yet highly volatile guest enables low temperature activation with structural retention as demonstrated surface area measurements that match or exceed existing activation protocols.
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