Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 46, Pages 14618-14621Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201709187
Keywords
activation; metal-organic frameworks; microporous materials; solvent exchange; surface tension
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Funding
- US Department of Energy [DE-SC0004888]
- U.S. Department of Energy (DOE) [DE-SC0004888] Funding Source: U.S. Department of Energy (DOE)
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Exploratory research into the critical steps in metal-organic framework (MOF) activation involving solvent exchange and solvent evacuation are reported. It is discovered that solvent exchange kinetics are extremely fast, and minutes rather days are appropriate for solvent exchange in many MOFs. It is also demonstrated that choice of a very low surface tension solvent is critical in successfully activating challenging MOFs. MOFs that have failed to be activated previously can achieve predicted surface areas provided that lower surface tension solvents, such as n-hexane and perfluoropentane, are applied. The insights herein aid in the efficient activation of MOFs in both laboratory and industrial settings and provide best practices for avoiding structural collapse.
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