Researchers Lower MOF Glass Processing Below 300 C With Sodium Additives
Updated
Updated · SciTechDaily · May 14
Researchers Lower MOF Glass Processing Below 300 C With Sodium Additives
1 articles · Updated · SciTechDaily · May 14
Nature Chemistry published an international team’s finding that small sodium- or lithium-containing additives can tune MOF glasses, lowering softening temperatures and improving flow during heating.
MOF glasses typically soften above 300 C, close to their degradation point, which has made manufacturing difficult despite their promise for trapping CO2, hydrogen and water.
Atomic-level NMR studies and AI-assisted modeling showed sodium ions enter the glass network, disrupt its connections and can even replace some zinc atoms rather than merely filling pores.
The work extends a long-used glassmaking strategy to hybrid metal-organic glasses, opening a route to more customizable materials for gas separation, storage, catalysis and specialized coatings.
Researchers said further work is needed to improve stability, better predict properties and test how the modified glasses perform in practical technologies.
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Metal-Organic Framework (MOF) glasses, such as ZIF-62, are unique materials with built-in porosity, making them promising for advanced uses like gas separation and catalysis. However, traditional manufacturing has been difficult because only a few MOFs can be melted into glass, and the process often requires high pressure and faces issues like strong adhesion to equipment. A recent breakthrough introduces a modifier framework that uses alkali ions to lower processing temperatures and improve flow, making it easier to produce and shape MOF glasses. This innovation expands the range of usable MOFs and enables more predictable design for new applications.