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在过去的近十年中,各种新型原位表征技术和反应器设计被应用于多相催化过程和催化材料的合成研究中,并获得了许多新认识.特别是最近几年,利用原位、共振拉曼光谱技术对分子筛合成关键物种检测、杂原子分子筛催化活性位的研究取得了一系列进展.这些技术的应用使得从分子水平认识复杂的多孔材料成为可能:从合成初期碎片基元检测、碎片相互连接的关键化学键到预组装类微孔结构;从高度隔离过渡金属中心到配位化学键断裂生成活性中间物种,再到完成催化反应循环.这为设计特定功能和结构的催化材料及高选择性的活性中心奠定了坚实的基础.
In the past ten years, a variety of new in situ characterization techniques and reactor design have been applied to the synthesis of heterogeneous catalysis and catalytic materials, and many new understandings have been obtained.Especially in recent years, , Resonance Raman spectroscopy has made a series of progresses in the detection of key molecular species for the synthesis of zeolites and the catalytic active sites for heteroatom molecular sieves.The application of these techniques makes it possible to recognize complex porous materials at the molecular level: , The interlinked key chemical bonds of fragmentation to the pre-assembled micro-porous structure; isolation of the transition metal center from the height to the coordination of chemical bond cleavage to generate active intermediate species, and then to complete the catalytic reaction cycle.This is the design of specific functional and structural catalytic materials and high Selective activity center has laid a solid foundation.