cm0c04675_si_001.pdf (2.34 MB)
Download fileSmall Molecules, Big Effects: Tuning Adsorption and Catalytic Properties of Metal–Organic Frameworks
journal contribution
posted on 2021-02-02, 21:05 authored by Xinyao Liu, Kent O. Kirlikovali, Zhijie Chen, Kaikai Ma, Karam B. Idrees, Ran Cao, Xuan Zhang, Timur Islamoglu, Yunling Liu, Omar K. FarhaMetal–organic
frameworks (MOFs) have emerged as a highly
tunable class of porous materials, and in particular, zirconium-based
MOFs (Zr-MOFs) have demonstrated the potential to address challenges
in a variety of practical applications due to their excellent chemical
and thermal stabilities. However, Zr-MOFs are typically synthesized
using flammable and toxic organic solvents. An effective, green, scalable
route to obtain high-quality Zr-MOFs has yet to be developed as these
procedures typically yield Zr-MOFs with relatively lower crystallinities
and porosities than those obtained via the former route. Herein, we
report the aqueous synthesis of MOF-808, a versatile Zr-MOF, that
yields products with high crystallinities and porosities that are
comparable to those of solvothermally synthesized MOF-808. We demonstrate
that modifying the carboxylic acid-based modulator used in this hydrothermal
procedure enables the straightforward tuning of the pore environment
in MOF-808. This approach can be leveraged to tune both the water
adsorption properties of MOF-808 and the solid-state catalytic performance
of MOF-808 toward the hydrolysis of a nerve agent simulant. We anticipate
that the insight gained here extends beyond MOF-808 and that it will
lead to similar advancements for other Zr-MOFs.