Journal Article

PUBDB-2024-01978

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Highly porous metal-organic framework liquids and glasses via a solvent-assisted linker exchange strategy of ZIF-8

Xue, W.-L. ; Kolodzeiski, P.Extern* ; Aucharova, H. ; Vasa, S. ; Koutsianos, A.Extern* ; Pallach, R.Extern* ; Song, J.Extern* ; Frentzel-Beyme, L.Extern* ; Linser, R. ; Henke, S. (Corresponding author)Extern*

2024
Nature Publishing Group UK [London]

This record in other databases:        

Please use a persistent id in citations: doi:10.1038/s41467-024-48703-5  doi:10.3204/PUBDB-2024-01978

Abstract: By combining the porosity of crystalline metal-organic frameworks (MOFs) with the unique processability of the liquid state, melt-quenched MOF glasses offer exciting opportunities for molecular separation. However, progress in this field is limited by two factors. Firstly, only very few MOFs melt at elevated temperatures and transform into stable glasses upon cooling the corresponding MOF liquid. Secondly, the MOF glasses obtained thus far feature only very small porosities and very small pore sizes. Here, we demonstrate solvent-assisted linker exchange (SALE) as a versatile method to prepare highly porous melt-quenched MOF glasses from the canonical ZIF-8. Two additional organic linkers are incorporated into the non-meltable ZIF-8, yielding high-entropy, linker-exchanged ZIF-8 derivatives undergoing crystal-to-liquid-to-glass phase transitions by thermal treatment. The ZIF-8 glasses demonstrate specific pore volumes of about 0.2 cm$^3$g$^{–1}$, adsorb large amounts of technologically relevant C$_3$ and C$_4$ hydrocarbons, and feature high kinetic sorption selectivities for the separation of propylene from propane.

---

Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20210316 (I-20210316) (I-20210316)
3. FS-Proposal: I-20220350 (I-20220350) (I-20220350)
4. DFG project 447344931 - Metall-Imidazolat-Gläser aus schmelzbaren Zeolitischen Imidazolat-Gerüsten – Fundamentales Verständnis, Porosität, Funktionalisierung & Modifizierung (447344931) (447344931)

Experiment(s):

1. PETRA Beamline P02.1 (PETRA III)

Appears in the scientific report 2024

---

Database coverage:
; ; ; ; Article Processing Charges ; BIOSIS Previews ; Biological Abstracts ; Clarivate Analytics Master Journal List ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Essential Science Indicators ; Fees ; IF >= 15 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection ; Zoological Record

---