单层
化学
自组装
膜
纳米颗粒
聚合物
金属有机骨架
化学工程
纳米技术
自组装单层膜
多孔性
粒子(生态学)
高分子化学
材料科学
有机化学
吸附
工程类
地质学
海洋学
生物化学
作者
Yuji Katayama,Mark Kalaj,Kyle Barcus,Seth M. Cohen
摘要
We report the first self-assembled porous monolayer and free-standing multilayer films composed of metal-organic framework (MOF) nanoparticles. Self-assembled MOF monolayers (SAMMs) were assembled at a liquid-air interface to produce films that are 87 wt % (89 vol %) MOF. Monolayer self-assembly was aided by growing a layer of poly(methyl methacrylate) (PMMA) on the particle surface using a histamine anchor. SAMMs could be stacked to obtain MOF multilayers, including alternating MOF/polymer heterostructures. SAMMs were coated on silicon microparticles, and a MOF film constructed of only five stacked layers could be manipulated as a free-standing, opalescent film. These monolayers are a significant advancement for obtaining highly functional porous membranes and coatings.
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