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Metal-organic frameworks for hydrofluorocarbon and perfluoro-carbon separation: A review
Xueying Feng, Xuemei Song, Xiaokang Wang, Rongming Wang, Weidong Fan*, Yukun Lu, Daofeng Sun*
https://doi.org/10.1016/j.cjsc.2026.101125
Metal-organic frameworks; Hydrofluorocarbons; Perfluorocarbons; Gas separation
ABSTRACT
In the context of booming modern energy systems and advanced manufacturing industries, hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs) serve as essential functional materials. Nevertheless, their exceptionally high global warming potential and long atmospheric lifetimes present serious environmental challenges. Efficient separation of HFCs/PFCs is critical both for meeting industrial purity demands and for mitigating greenhouse gas emissions. Conventional techniques such as low temperature distillation, however, are hindered by technical and economic limitations owing to the similar physicochemical properties of these fluorinated gases. Metal-organic frameworks (MOFs), featuring tunable pore structures, modifiable surface functionalities, and high adsorption capacities, have emerged as promising candidates for HFCs/PFCs separation. This review systematically summarizes recent progress in MOF based separation, with a focus on the underlying separation mechanisms, and provides a comprehensive overview of advances in key separation systems. The article aims to offer a consolidated reference for developing sustainable separation technologies that balance industrial needs with environmental protection.
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