Determining the structural stability of UiO-67 with respect to time: a solid-state NMR investigation

Determining the structural stability of UiO-67 with respect to time: a solid-state NMR investigation

The stability of UiO-67 has been questioned for some time. We have used solid-state NMR to investigate the temporal stability of this MOF. Proper activation is necessary to achieve optimal surface area. However, even with proper activation, the long-term (30+ days) fate of UiO-67 is hydrolysis of th...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2016-01, Vol.52 (28), p.4971-4974
Hauptverfasser: Lawrence, M. C, Schneider, C, Katz, M. J
Format: Artikel
Sprache:eng
Schlagworte:
Activation
Hydrolysis
Nuclear magnetic resonance
Optimization
Porosity
Stability
Structural stability
Surface area
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Zusammenfassung:The stability of UiO-67 has been questioned for some time. We have used solid-state NMR to investigate the temporal stability of this MOF. Proper activation is necessary to achieve optimal surface area. However, even with proper activation, the long-term (30+ days) fate of UiO-67 is hydrolysis of the linker-metal bonds and, ultimately, pore collapse. Revealing defects, the stability of UiO-67 was studied with SS-NMR as a function of time and activation method/solvent.
ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc09919f