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Heteroepitaxial Growth of Isoreticular Metal-Organic Frameworks and Their Hybrid Films

机译：等规金属有机骨架及其杂化薄膜的异质外延生长

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Here we report the heteroepitaxial growth of isoreticular metal-organic frameworks (IRMOFs), that is, growing one IRMOF on another at the single crystal level. The presence of an amine compound in the growth solution of shell crystals is found to be critical for the heteroepitaxial growth of the IRMOFs by preventing IRMOF core (or seed) crystals from dissolving during the epitaxial growth stage. Single-crystal X-ray diffraction proved the epitaxy of the shell crystals grown on the surface of the core crystals. IRMOF hybrid films were also prepared on porous supports by heteroepitaxially growing IRMOF-3 crystals oil the surface of IRMOF-1 seed crystal layers. These results are expected to enable the preparation of a series of novel hybrid IRMOFs and their thin films and membranes with multifunctionalities and improved properties for advanced applications.
机译：在这里，我们报告了等孔金属有机骨架（IRMOF）的异质外延生长，即在单晶水平上在另一IRMOF上生长一个IRMOF。通过防止IRMOF核心（或晶种）晶体在外延生长阶段溶解，发现壳晶体生长溶液中胺化合物的存在对IRMOF的异质外延生长至关重要。单晶X射线衍射证明了在核心晶体表面上生长的壳晶体的外延。还通过在IRMOF-1种晶层的表面上异质外延生长IRMOF-3晶体在多孔载体上制备IRMOF杂化膜。预期这些结果将能够制备一系列新颖的混合型IRMOF及其具有多功能性和改进性能的薄膜和膜，以用于高级应用。

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