Live encapsulation of a Keggin polyanion in NH2-MIL-101(Al) observed by in situ time resolved X-ray scattering

Live encapsulation of a Keggin polyanion in NH2-MIL-101(Al) observed by in situ time resolved X-ray scattering

The templating effect of the Keggin polyanion derived from phosphotungstic acid (PTA) during the synthesis of NH(2)-MIL-101(Al) has been investigated by means of in situ SAXS/WAXS. Kinetic analysis and structural observations demonstrate that PTA acts as a nucleation site and that it stabilizes the...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2011-08, Vol.47 (30), p.8578-8580
Hauptverfasser: Juan-Alcañiz, Jana, Goesten, Maarten, Martinez-Joaristi, Alberto, Stavitski, Eli, Petukhov, Andrei V, Gascon, Jorge, Kapteijn, Freek
Format: Artikel
Sprache:eng
Schlagworte:
Encapsulation
Nucleation
Precursors
SAXS
Scattering
Synthesis
Time resolved
X-rays
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Beschreibung
Zusammenfassung:The templating effect of the Keggin polyanion derived from phosphotungstic acid (PTA) during the synthesis of NH(2)-MIL-101(Al) has been investigated by means of in situ SAXS/WAXS. Kinetic analysis and structural observations demonstrate that PTA acts as a nucleation site and that it stabilizes the precursor phase NH(2)-MOF-235(Al). Surprisingly kinetics of formation are little changed.
ISSN:1359-7345
1364-548X
DOI:10.1039/c1cc12213d