分子筛催化材料被广泛用于能源和环境催化领域，实现分子筛催化材料的可控制备及催化性能提升是研究的焦点。本项目面向国家对能源及环境催化体系高效催化剂的需求，开展高性能CHA分子筛材料的可控制备及催化反应性能的研究，致力于提升CHA分子筛催化材料的反应活性和水热稳定性。本项目拟采用研磨晶种导向，多级孔构筑，金属复合，核壳分层负载的方法，制备具有优异低碳烯烃选择性和显著延长甲醇转化反应寿命的SAPO-34分子筛催化材料，以及具有宽温区催化活性和极佳水热稳定性的Cu基CHA分子筛脱硝反应催化材料。通过对分子筛形貌和活性中心的修饰与调控，发展绿色、高产率、成本低廉的合成策略，探讨CHA分子筛材料活性中心的形成机制及精细调控原理，建立CHA分子筛微观结构、金属物种拓扑/电子结构与催化性能间的构效关系，确定影响反应活性、催化寿命、稳定性和产物选择性的关键因素，为设计性能优异的CHA分子筛催化材料提供基础。

Zeolites are widely used in the fields of catalysis, which are closely related to energy and environment. The controllable preparation of zeolite catalysts and improvement of catalytic performance are the central issue. Face to the national demands of high performance catalysts for energy and environmental catalytic systems, in this project, the controllable preparation of CHA zeolites with high catalytic performance are carried out in order to improve the catalytic activity and hydrothermal stability. By using grinding seeding direct, constructing hierarchical structure, metal cooperation, core-shell separated loading to prepare SAPO-34 zeolite catalysts with excellent selectivity of the light olefins and prolonged catalytic lifespan in methanol to olefins reaction, and Cu-based CHA zeolite catalysts with wide temperature range catalytic activity and excellent hydrothermal stability in the selective catalytic reduction and oxidation of NOx with ammonia. Through controlling and tailoring the morphology and the active center of CHA zeolite catalysts, this project aims to develop the green synthesis strategy with high yield and low cost. The formation mechanism and fine regulation principle of active centers of CHA zeolite catalysts will be investigated, the structure-activity relationship among the microstructure of CHA zeolite catalysts, the topological/electronic structure of metal species and catalytic performance will be established. This project will determine the key factors of the reaction activity, the catalytic lifespan and the product selectivity, and provide the foundation for designing CHA zeolite catalysts with high catalytic performance of MTO, NH3-SCR and NH3-SCO reactions.