本项目以分子筛催化剂金属活性中心的固体NMR表征这一科学问题为牵引，以发展高场固体NMR表征新方法为目标。充分发挥高场NMR谱仪的优势，根据不同金属核的特点，针对金属改性分子筛催化剂活性中心观测、金属原子与载体及反应物间的相互作用等问题开展强磁场下高效固体NMR表征方法的研究。预期在金属活性中心的灵敏度增强固体NMR实验方法、固体NMR宽带激发、宽带重耦以及双共振极化转移固体NMR表征方法的研究等方面取得进展。尝试建立针对分子筛催化剂中不同金属活性中心表征的高场固体NMR谱学新方法。

This project aims to develop advanced high-field solid-state NMR (SSNMR) methods for the study of metal active centers on zeolite catalysts. Based on the properties of different metal nuclei, mainly for the scientific issue of the characterization of metal active centers on metal-modified zeolites, and the interactions between metal atoms and carriers or reactants, we intend to develop sensitivity-enhanced SSNMR methods for metal active centers, broadband excitation and recoupling SSNMR techniques, and the double-resonance polarization SSNMR methods under high magnetic field.