TY - JOUR
T1 - Designing Porous Materials to Resist Compression
T2 - Mechanical Reinforcement of a Zr-MOF with Structural Linkers
AU - Robison, Lee
AU - Drout, Riki J.
AU - Redfern, Louis R.
AU - Son, Florencia A.
AU - Wasson, Megan C.
AU - Goswami, Subhadip
AU - Chen, Zhijie
AU - Olszewski, Alyssa
AU - Idrees, Karam B.
AU - Islamoglu, Timur
AU - Farha, Omar K.
N1 - Funding Information:
O.K.F. gratefully acknowledges support from the Defense Threat Reduction Agency (HDTRA1-19-1-0007). L.R.’s contribution to this work is based on work supported by the U.S. Department of Energy (DOE), Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research (SCGSR) program. The SCGSR program is administered by the Oak Ridge Institute for Science and Education (ORISE) for the DOE. ORISE is managed by ORAU under contract DE-SC0014664. R.J.D. appreciates the support of the Northwestern University Ryan Fellowship granted by the International Institute of Nanotechnology and The Graduate School at Northwestern University. M.C.W. is supported by the NSF Graduate Research Fellowship under grant DGE-1842165. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under contract no. DE-AC02- 06CH11357. Use was made of the IMSERC X-ray facility at Northwestern University, which has received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-1542205), the State of Illinois, and the International Institute for Nanotechnology (IIN). This work made use of the EPIC facility of Northwestern University’s NUANCE Center, which has received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-1542205), the MRSEC program (NSF DMR-1720139) at the Materials Research Center, the International Institute for Nanotechnology (IIN), the Keck Foundation, and the State of Illinois through the IIN.
Publisher Copyright:
Copyright © 2020 American Chemical Society.
PY - 2020/4/28
Y1 - 2020/4/28
N2 - The performance of metal-organic frameworks (MOFs) under mechanical stress is an important consideration in the design, synthesis, and application of MOF materials in both fundamental and industrial settings. We herein demonstrate that the bulk modulus (K = -V dP/dV) of a 4,8-connected Zr-based MOF, NU-901, comprised of Zr6O8 nodes and tetratopic pyrene linkers, increases systematically upon postsynthetic installation of a structural organic linker, 2,6-naphthalenedicarboxylic acid (NDC), via solvent assisted linker incorporation. We calculated the bulk modulus, a measure of resistance to hydrostatic compression, of these modified NU-901 samples through in situ variable powder X-ray diffraction pressure measurements collected using a synchrotron source. As the amount of NDC incorporation into the NU-901 framework increased, the lattice strength of the framework also increased. This strategy of postsynthetic modification at the molecular level serves as a promising blueprint to tune the bulk mechanical properties of other MOFs by increasing the connnectivity of the secondary building unit. Furthermore, we envision this method may allow for structural reinforcement of other frameworks along one preferential axis or direction dependent on the desired application.
AB - The performance of metal-organic frameworks (MOFs) under mechanical stress is an important consideration in the design, synthesis, and application of MOF materials in both fundamental and industrial settings. We herein demonstrate that the bulk modulus (K = -V dP/dV) of a 4,8-connected Zr-based MOF, NU-901, comprised of Zr6O8 nodes and tetratopic pyrene linkers, increases systematically upon postsynthetic installation of a structural organic linker, 2,6-naphthalenedicarboxylic acid (NDC), via solvent assisted linker incorporation. We calculated the bulk modulus, a measure of resistance to hydrostatic compression, of these modified NU-901 samples through in situ variable powder X-ray diffraction pressure measurements collected using a synchrotron source. As the amount of NDC incorporation into the NU-901 framework increased, the lattice strength of the framework also increased. This strategy of postsynthetic modification at the molecular level serves as a promising blueprint to tune the bulk mechanical properties of other MOFs by increasing the connnectivity of the secondary building unit. Furthermore, we envision this method may allow for structural reinforcement of other frameworks along one preferential axis or direction dependent on the desired application.
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U2 - 10.1021/acs.chemmater.0c00634
DO - 10.1021/acs.chemmater.0c00634
M3 - Article
AN - SCOPUS:85083211609
SN - 0897-4756
VL - 32
SP - 3545
EP - 3552
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 8
ER -