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    • 5. 发明申请
    • IMPERFECT MOFS (IMOFS) MATERIAL, PREPARATION AND USE IN CATALYSIS, SORPTION AND SEPARATION
    • 未完成的MOFS(IMOFS)材料,制备和用于催化,吸附和分离
    • WO2017210874A1
    • 2017-12-14
    • PCT/CN2016/085221
    • 2016-06-08
    • XIA, Ling
    • VERPOORT, Francis Walter CorneliusCHAEMCHUEN, Somboon
    • B01J20/22B01J20/30B01J31/22
    • C07F3/06B01J20/226B01J20/32B01J31/1691B01J31/22B01J31/2239B01J2231/341C07F19/00Y02C10/08
    • A creation of defects (defect structures) in Metal organic frameworks (MOFs) which generates imperfect MOFs (iMOFs) and the quantization of the defects in iMOFs are disclosed. The catalytic activity of iMOFs is also disclosed. In particular, the crystal growth-driven creation of defects (amount and type) in metal-organic frameworks which result in iMOFs are disclosed by using different synthesis procedures. The type of synthesis procedure, such as solvothermal, room temperature, microwave or spray drying, affects the crystal growth of metal-organic frameworks (MOFs), and specifically the structure, morphology and other properties of iMOFs such as crystal size, particle shape, surface area, defect structures (defects) and gas adsorption capacity and affinity toward N 2 , CO 2 , CH 4 etc. Moreover, high performance of MOFs in various catalytic reactions can be correlated to the higher amount of defect structures because defects can possibly display acid and/or basic properties. The amount of generated defects depends on the synthesis procedure of iMOFs. While studies of MOF crystallinity confirmed that for a given type of MOF different synthesis methods generated samples of similar crystal structures their morphologies were different due to the differences in the crystallization rates associated with these methods.
    • 在金属有机框架(MOF)中产生缺陷(缺陷结构),其产生不完美的MOF(iMOF)并量化iMOF中的缺陷。 还公开了iMOF的催化活性。 具体而言,通过使用不同的合成程序公开了导致iMOF的金属 - 有机框架中晶体生长驱动的缺陷(量和类型)的产生。 合成过程的类型,如溶剂热,室温,微波或喷雾干燥,会影响金属有机骨架(MOFs)的晶体生长,特别是iMOFs的结构,形态和其他性质,如晶体尺寸,颗粒形状, 表面积,缺陷结构(缺陷)和气体吸附能力以及对N 2,CO 2,CH 4等的亲和力。此外,高性能 的MOFs在各种催化反应中可以与较高量的缺陷结构相关,因为缺陷可能显示酸性和/或碱性性质。 生成的缺陷数量取决于iMOF的合成过程。 虽然对MOF结晶度的研究证实,对于给定类型的MOF,不同的合成方法产生相似晶体结构的样品,但由于与这些方法相关的结晶速率的差异,它们的形态不同。