The engineering of metal-organic frameworks (MOFs) into membranes and films is being investigated, to transform laboratory-synthesized MOFs into industrially viable products for a range of attractive applications. However, rational design and construction of highly permeable MOF thin films, without trade-offs in terms of structural mechanical stability, remains a significant challenge. Herein, a simple, general strategy is reported to prepare thin MOF nanosheet (NS)-assembled frame film via heteroepitaxial growth from metal hydroxide film. As the thin MOF NS-assembled film significantly enhances the permeability of mass though the film, the resultant gold nanoparticle (Au NP)@MOF film exhibits much higher catalytic efficiency than the Au NP@MOF bulk film. Meanwhile, the unique framework of the MOF NS-assembled film resists torsion and collapse, so the composite catalyst exhibits long-term stability.

中文翻译：

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具有高渗透性和稳定性的金属-有机骨架纳米片组装框架膜。

目前正在研究将金属有机骨架（MOF）制成膜和薄膜的工程，以将实验室合成的MOF转变成可在工业上应用的产品，以实现一系列有吸引力的应用。然而，在结构机械稳定性方面没有折衷的情况下，合理设计和构造高渗透性MOF薄膜仍然是一个巨大的挑战。在此，据报道，一种简单的通用策略是通过异质外延生长从金属氢氧化物膜制备MOF纳米片（NS）组装的薄框架膜。由于薄的MOF NS组装薄膜大大提高了薄膜的质量渗透性，因此，金纳米颗粒（Au NP）@MOF薄膜比Au NP @ MOF本体薄膜具有更高的催化效率。同时，MOF NS组装膜的独特框架可抵抗扭曲和塌陷，