Water sorption studies with mesoporous multivariate monoliths based on UiO-66.

ABSTRACT: Hierarchical linker thermolysis has been used to enhance the porosity of monolithic UiO-66-based metal-organic frameworks (MOFs) containing 30 wt% 2-aminoterephthalic acid (BDC-NH₂) linker. In this multivariate (i.e. mixed-linker) MOF, the thermolabile BDC-NH₂ linker decomposed at ∼350 °C, inducing mesopore formation. The nitrogen sorption of these monolithic MOFs was probed, and an increase in gas uptake of more than 200 cm³ g^-1 was observed after activation by heating, together with an increase in pore volume and mean pore width, indicating the creation of mesopores. Water sorption studies were conducted on these monoliths to explore their performance in that context. Before heating, _monoUiO-66-NH₂-30%-B showed maxi

SUBMITTER: Marazani LG 

PROVIDER: S-EPMC11379059 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature