2018
DOI: 10.1039/c7sc04952h
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Pore closure in zeolitic imidazolate frameworks under mechanical pressure

Abstract: Zeolitic imidazolate frameworks with cag topology switch between an open and a closed phase in response to mechanical pressure.

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Cited by 88 publications
(120 citation statements)
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“…The profile fit of ZIF ‐ 4 ( Zn )‐ cp was performed in P 2 1 / c , as suggested in the literature , . The evolution of volume and lattice parameters as obtained from the Pawley profile fit analysis is shown in Figures b and c. In agreement with previous findings,, a volume contraction of approximately 20 % is observed, when considering the volume of the unit cell at the last pressure point at which phase pure ZIF ‐ 4 ( Zn )‐ op is present compared to the volume at the first pressure where only ZIF ‐ 4 ( Zn )‐ cp can be observed.…”
Section: Resultssupporting
confidence: 86%
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“…The profile fit of ZIF ‐ 4 ( Zn )‐ cp was performed in P 2 1 / c , as suggested in the literature , . The evolution of volume and lattice parameters as obtained from the Pawley profile fit analysis is shown in Figures b and c. In agreement with previous findings,, a volume contraction of approximately 20 % is observed, when considering the volume of the unit cell at the last pressure point at which phase pure ZIF ‐ 4 ( Zn )‐ op is present compared to the volume at the first pressure where only ZIF ‐ 4 ( Zn )‐ cp can be observed.…”
Section: Resultssupporting
confidence: 86%
“…The profile fit of ZIF ‐ 4 ( Zn )‐ cp was performed in P 2 1 / c , as suggested in the literature , . The evolution of volume and lattice parameters as obtained from the Pawley profile fit analysis is shown in Figures b and c. In agreement with previous findings,, a volume contraction of approximately 20 % is observed, when considering the volume of the unit cell at the last pressure point at which phase pure ZIF ‐ 4 ( Zn )‐ op is present compared to the volume at the first pressure where only ZIF ‐ 4 ( Zn )‐ cp can be observed. The bulk moduli of ZIF ‐ 4 ( Zn )‐ op and ZIF ‐ 4 ( Zn )‐ cp were obtained by fitting a 2 nd order Birch‐Murnaghan (BM) equation of state to the V ( p ) data between p = ambient – 0.045 GPa for ZIF ‐ 4 ( Zn )‐ op and p = 0.125 GPa – 0.4 GPa for ZIF ‐ 4 ( Zn )‐ cp using EoSFit‐7c (see Supporting Information for fits of the BM equation of state and stress‐strain plots).…”
Section: Resultssupporting
confidence: 86%
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