在催化剂作用下CO2与胺/H2反应可以生成高附加值N-甲酰(基)胺产物。均相催化剂的反应条件温和，但催化剂和反应物的分离比较困难。本项目提出一种新的磁性核MOFs催化剂制备方法，即在磁性Fe3O4颗粒表面原位合成一层具有配位不饱和位(CUS)的MOFs材料，制成MOFs@Fe3O4磁性微球，再将Ru、Au、Pd等组装在磁性MOFs@Fe3O4中，制备出“催化活性组分/MOFs@Fe3O4核”磁性催化剂。然后在液-固反应器中评价CO2与胺/H2的N-甲酰(基)化性能，深入研究催化剂的制备、结构与性能关系和CUS活化CO2的机制，形成磁性MOFs催化剂制备新技术和CO2与胺/H2反应合成N-甲酰(基) 胺新工艺。项目实施对认识磁性MOFs催化剂对CO2与胺/H2的N-甲酰(基)化反应性能、CUS活化CO2的机制有重要的科学意义，对实现CO2与胺/H2生成N-甲酰(基)胺新工艺有重要的应用价值。

In highly active catalysts, CO2 with amine/H2 can be converted into more valuable products of the N-formamide and the N-methylamine through the N-formylation (N-methylation) reaction. When using the homogeneous catalyst, the reaction conditions are milder but the separation of the catalyst and the reactant was difficult. In this project a new method for construction the magnetic core-shell MOFs catalyst was proposed. This is that, firstly, the MOFs shell layer with coordinative unsaturated sites (CUS) was in situ synthesized and coated on the surface of superparamagnetic Fe3O4 core with protected layer and the magnetic MOFs@Fe3O4 microsphere particles were prepared. Secondly, the catalytic activity components, such as Ru, Au, and Pd, are assembled into the MOFs shell of magnetic MOFs@Fe3O4 particles. Finally, the magnetic MOFs catalysts, named the catalytic activity components/MOFs@Fe3O4 are prepared. At the same time, the performance of the magnetic MOFs catalysts for the CO2 with amine/H2 to form N-formamide and the N-methylamine in the liquid-solid catalytic reactor will be evaluated. The relationship of the catalytic active components and the structure of MOFs, the catalytic mechanism of CUS coordination active CO2, and the recycling properties of the magnetic MOFs catalysts will be adequately investigated. Actualized this project, the new technology of preparation the magnetic MOFs catalysts and the catalysis process of the CO2 with amine/H2 to form N-formamide and the N-methylamine will be formed. This project has an important scientific significance to understand the role of magnetic MOFs catalysts for the N-formylation and N-methylation reaction of the CO2 with amine/H2 and the catalytic mechanism of CUS coordination active CO2 over the magnetic MOFs catalysts. There is a bright future application for the CO2 with amine/H2 to form N-formamide and the N-methylamine catalysis process.