TY  - JOUR
AU  - Cao, Fengming
AU  - Strandskov Soerensen, Soeren
AU  - Christensen, Anders K. R.
AU  - Mollick, Samraj
AU  - Ge, Xuan
AU  - Sun, Daming
AU  - Nielsen, Anders B.
AU  - Nielsen, Niels Chr.
AU  - Lock, Nina
AU  - Lu, Ronghui
AU  - Klemmt, Rebekka
AU  - Kristensen, Peter K.
AU  - Jensen, Lars R.
AU  - Dallari, Francesco
AU  - Baglioni, Jacopo
AU  - Monaco, Giulio
AU  - Karlsen, Martin Aaskov
AU  - Baran, Volodymyr
AU  - Smedskjaer, Morten M.
TI  - Continuous structure modification of metal-organic framework glasses via halide salts
JO  - Nature Communications
VL  - 16
IS  - 1
SN  - 2041-1723
CY  - [London]
PB  - Springer Nature
M1  - PUBDB-2025-03551
SP  - 7001
PY  - 2025
AB  - Melting and glass formation of metal-organic frameworks (MOFs) allow them to be processed into bulk materials. However, two major challenges remain: only a small fraction of MOF crystals undergo melting and glass-formation, and no well-established strategies exist for tuning MOF glass structures and properties. Here, we address both challenges through co-melting of zeolitic imidazole frameworks (ZIFs), a subset of MOFs, with heterocycle-based halide salts. The salt acts as a chemical “modifier”, akin to the role of alkali modifiers in traditional silicate glasses, e.g., allowing the melting of ZIF-8 that otherwise decomposes prior to melting. Through experimental and computational analyses, we show that the salts depolymerize the ZIFs, enabling continuous tuning of the fraction of bridging to non-bridging imidazolate linkers and, thereby, the thermal and mechanical properties. The proposed strategy enables diversification of MOF glass chemistry, tunable structures and properties, and ultimately an increased number of glass-forming MOFs with improved functionalities.
LB  - PUB:(DE-HGF)16
C6  - pmid:40739141
DO  - DOI:10.1038/s41467-025-62143-9
UR  - https://bib-pubdb1.desy.de/record/635796
ER  -