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首页> 外文期刊>Chemistry: A European journal >Assembly of a Metal-Organic Framework into 3D Hierarchical Porous Monoliths Using a Pickering High Internal Phase Emulsion Template
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Assembly of a Metal-Organic Framework into 3D Hierarchical Porous Monoliths Using a Pickering High Internal Phase Emulsion Template

机译：使用Pickering高内相乳液模板将金属有机框架组装成3D分层多孔整料

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摘要

3D Hierarchical porous metal-organic framework (MOF) monoliths are prepared by using Pickering high internal phase emulsion (HIPE) template. Pickering HIPEs were stabilized solely by UiO-66 MOF particles with internal phase up to 90% of the volume. The effects of internal phase type and volume, as well as MOF particle concentration on the stability of resulting Pickering HIPEs were investigated. Furthermore, by adding small amount of polyvinyl alcohol (PVA) as binder or polymerization in the continuous aqueous phase, followed by freeze-drying, two types of MOF-based 3D hierarchical porous monoliths with ultralow density (as low as 12 mg cm(-3)) were successfully prepared. This Pickering HIPE template approach provides a facile and practical way for assembling of MOFs into complex structures.
机译：通过使用Pickering高内相乳液（HIPE）模板制备3D分层多孔金属-有机骨架（MOF）整料。 Pickering HIPE仅通过内部相高达体积的90％的UiO-66 MOF颗粒来稳定。研究了内相类型和体积以及MOF颗粒浓度对所得Pickering HIPEs稳定性的影响。此外，通过在连续水相中添加少量聚乙烯醇（PVA）作为粘合剂或聚合反应，然后冷冻干燥，两种类型的基于MOF的3D分层多孔整料具有超低密度（低至12 mg cm（- 3））已成功准备。这种Pickering HIPE模板方法为将MOF组装成复杂结构提供了一种简便实用的方法。

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