State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
Key Laboratory of Advanced Materials and Application for Batteries of Zhejiang, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
Nat Commun. 2014 Nov 18;5:5532. doi: 10.1038/ncomms6532.
Porous metal-organic frameworks (MOFs) demonstrate great potential for numerous applications. Although hetero-functional components have been encapsulated within MOF crystalline particles, the uniform incorporation of functional species with different sizes, shapes and functions in MOF thin films with dual properties, especially at room temperature and without the degradation of the MOF framework, remains a significant challenge towards further enriching their functions for various purposes. Here we report a general method that can rapidly encapsulate diverse functional components, including small ions, micrometre-sized particles, inorganic nanoparticles and bioactive proteins, in MOF thin films at room temperature via a metal-hydroxide-nanostrand-assisted confinement technique. These functional component-encapsulated MOF composite thin films exhibit synergistic and size-selective catalytic, bio-electrochemical, conductive and flexible functionalities that are desirable for thin film devices, including catalytic membrane reactors, biosensors and flexible electronic devices.
多孔金属-有机骨架（MOFs）在许多应用中具有巨大的潜力。尽管异质功能组件已被封装在 MOF 晶体颗粒内，但在具有双重性质的 MOF 薄膜中均匀地掺入具有不同大小、形状和功能的功能物质，特别是在室温下且不破坏 MOF 骨架，对于进一步丰富其功能以满足各种用途仍然是一个重大挑战。在这里，我们报告了一种通用方法，可以通过金属-氢氧化物-纳米线辅助限域技术，在室温下快速封装各种功能组件，包括小离子、微米级颗粒、无机纳米粒子和生物活性蛋白质，在 MOF 薄膜中。这些功能组件封装的 MOF 复合薄膜表现出协同和尺寸选择性的催化、生物电化学、导电和柔性功能，这些功能是薄膜器件所期望的，包括催化膜反应器、生物传感器和柔性电子器件。
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