Survival of Zirconium-Based Metal-Organic Framework Crystallinity at Extreme Pressures.

ABSTRACT: Recent research on metal-organic frameworks (MOFs) has shown a shift from considering only the crystalline high-porosity phases to exploring their amorphous counterparts. Applying pressure to a crystalline MOF is a common method of amorphization, as MOFs contain large void spaces that can collapse, reducing the accessible surface area. This can be either a desired change or indeed an unwanted side effect of the application of pressure. In either case, understanding the MOF's pressure response is extremely important. Three such MOFs with varying pore sizes (UiO-66, MOF-808, and NU-1000) were investigated using in situ high-pressure X-ray diffraction and Raman spectroscopy. Partial crystallinity was observed in all three MOFs above 10 GPa, along with some recovery of crystallinity on

SUBMITTER: Robertson GP 

PROVIDER: S-EPMC10324312 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature