Synthesis
and Properties of a Compositional Series
of MIL-53(Al) Metal–Organic Framework Crystal-Glass Composites
Posted on 2019-09-18 - 21:03
Metal–organic
framework crystal-glass composites (MOF-CGCs)
are materials in which a crystalline MOF is dispersed within a MOF
glass. In this work, we explore the room-temperature stabilization
of the open-pore form of MIL-53(Al), usually observed at high temperature,
which occurs upon encapsulation within a ZIF-62(Zn) MOF glass matrix.
A series of MOF-CGCs containing different loadings of MIL-53(Al) were
synthesized and characterized using X-ray diffraction and nuclear
magnetic resonance spectroscopy. An upper limit of MIL-53(Al) that
can be stabilized in the composite was determined for the first time.
The nanostructure of the composites was probed using pair distribution
function analysis and scanning transmission electron microscopy. Notably,
the distribution and integrity of the crystalline component in a sample
series were determined, and these findings were related to the MOF-CGC
gas adsorption capacity in order to identify the optimal loading necessary
for maximum CO2 sorption capacity.
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Ashling, Christopher
W.; Johnstone, Duncan N.; Widmer, Remo N.; Hou, Jingwei; Collins, Sean M.; Sapnik, Adam F.; et al. (2019). Synthesis
and Properties of a Compositional Series
of MIL-53(Al) Metal–Organic Framework Crystal-Glass Composites. ACS Publications. Collection. https://doi.org/10.1021/jacs.9b07557
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AUTHORS (11)
CA
Christopher
W. Ashling
DJ
Duncan N. Johnstone
RW
Remo N. Widmer
JH
Jingwei Hou
SC
Sean M. Collins
AS
Adam F. Sapnik
AB
Alice M. Bumstead
PM
Paul A. Midgley
PC
Philip A. Chater
DK
David A. Keen
TB
Thomas D. Bennett