A facile growth of microporous ZIFs, such as ZIF-67, ZIF-8 into mesoporous alumina to obtain hierarchical micro/mesoporous [email protected]₂O₃ is achieved. Several analysis techniques, such as powder-XRD, SEM, ICP, and gas adsorption, etc. are applied to characterize the composite materials. The use of a surfactant is the critical parameter to functionalize and assist the nano-crystal ZIFs growth in meso-Al₂O₃. To obtain a high crystal density ZIF-growth in meso-Al₂O₃ different parameters are tuned such as the surfactant (type and concentration), precursor concentration of ZIFs, and synthesis cycle of the composite material. The synthesis strategy is applicable for any ZIFs to be hybridized on supporting media such as meso-Al₂O₃. Furthermore, the application of [email protected]₂O₃ as a catalyst is examined and shows a high performance and recyclability for applications such as the Knoevenagel condensation and CO₂ fixation reaction with epoxides. The highly active sites are distributed on a larger particle support (meso-Al₂O₃) is found to enhance the catalytic performance. Finally, the main advantage of the composite material is the straightforward handling compared to the use of bulk phases MOFs as a catalyst.

实现了微孔ZIF（例如s ZIF-67，ZIF-8）向中孔氧化铝的轻松生长，以获得分层的微孔/中孔[受电子邮件保护] ₂ O ₃。几种分析技术，如粉末XRD，SEM，ICP和气体吸附等被用于表征复合材料。使用表面活性剂是功能化和辅助纳米晶体ZIFs在中观Al ₂ O _3中生长的关键参数。在介孔Al ₂ O _3中获得高晶体密度ZIF生长调整了不同的参数，例如表面活性剂（类型和浓度），ZIF的前体浓度和复合材料的合成周期。该合成策略适用于将在诸如m eso -Al ₂ O _3的支持介质上杂交的任何ZIF 。此外，研究了[电子邮件保护的] ₂ O ₃作为催化剂的应用，并显示出其在诸如Knoevenagel缩合和与环氧化物的CO ₂固定反应等应用中的高性能和可回收性。高活性位点分布在较大的颗粒载体（m eso -Al ₂ O ₃被发现可以增强催化性能。最后，与使用本体相MOF作为催化剂相比，复合材料的主要优点是操作简单。