MOF Thin Films Show Dense Packing, Contradicting Long-Held Porosity Beliefs
Metal-organic frameworks (MOFs), known for their high porosity, are considered promising materials for various innovative applications. Their discovery was recognized with the Nobel Prize in Chemistry in 2025. MOFs are utilized in applications such as gas storage, carbon dioxide capture, and targeted drug delivery. Recent findings concerning MOF thin films have revealed a dense packing structure, which challenges the long-standing assumption of their inherent porosity. This new understanding could significantly impact the development and application of MOF-based technologies.
The discovery of dense packing in MOF thin films necessitates a re-evaluation of their fundamental properties, potentially impacting established application paradigms. While MOFs have been lauded for porosity-driven functions like gas storage and CO2 capture, this new data suggests that their behavior in thin-film form may rely on different mechanisms. Future research should explore how this dense packing influences material performance and whether existing theoretical models adequately capture these phenomena. Understanding the conditions that lead to dense versus porous structures will be crucial for optimizing MOF design and unlocking new technological avenues in the coming decade, particularly in areas sensitive to material density and surface interactions.
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