Y分子筛结构特性与催化性能的固体核磁共振研究进展  

Research Progress in Structural Characteristics and Catalytic Performances of Y-Type Zeolite Investigated by Solid-State NMR

作　　者：肖瑶 张君屹[2] 刘宇航[2] 王久江 易先锋 郑安民 XIAO Yao;ZHANG Junyi;LIU Yuhang;WANG Jiujiang;YI Xianfeng;ZHENG Anmin(State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430071,China;Lanzhou Petrochemical Company,PetroChina,Lanzhou 730060,China;Lanzhou Petrochemical Research Center,Petrochemical Research Institute,PetroChina,Lanzhou 730060,China;Interdisciplinary Institute of NMR and Molecular Sciences,School of Chemistry and Chemical Engineering,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]中国科学院精密测量科学与技术创新研究院武汉物理与数学研究所波谱与原子分子物理国家重点实验室,湖北武汉430071 [2]中国石油兰州石化公司,甘肃兰州730060 [3]中国石油石油化工研究院兰州化工研究中心,甘肃兰州730060 [4]武汉科技大学化学与化工学院核磁共振与分子科学交叉研究院,湖北武汉430081

出　　处：《化学与生物工程》2024年第11期9-15,共7页Chemistry & Bioengineering

基　　金：兰州市科技计划项目(LZSKJ2022-1-3);科技部国家重点研发计划项目(2021YFA1502600)。

摘　　要：作为一类在石油炼制与化工领域应用极其广泛的工业催化剂,Y分子筛的活性中心结构及酸性特征(酸类型、酸强度、酸浓度、酸分布和空间邻近性等)与其催化性能(反应活性、选择性和稳定性等)密切相关。准确描述活性中心结构、酸性特征及催化反应微观机理是建立其结构特性与催化性能之间内在关联的必要前提,也是实现Y分子筛催化效能进一步提升的关键所在。主要综述了近年来固体核磁共振(NMR)技术在Y分子筛局域精细结构的表征、酸性特征的定性与定量分析及催化反应机理等方面的研究进展,并对其发展方向进行了展望。As a kind of industrial catalyst widely used in petroleum refining and chemical industry,the active center structure and acidic characteristics(acid type,acid strength,acid concentration,acid distribution,and spatial proximity,etc.)of Y-type zeolites are closely related to their catalytic performance(reactivity,selectivity,and stability,etc.).Accurate description of the active center structure,the acidic characteristics,and the involved catalytic reaction mechanism is a necessary foundation to establish the internal correlation between the structural characteristics and catalytic performance,which is the key to further improvement in the catalytic efficiency of Y-type zeolites.We briefly review the recent research progress of solid-state nuclear magnetic resonance(NMR)in the characterization of Y-type zeolites local fine structure,the qualitative and quantitative analyses of acidic characteristics,and the catalytic reaction mechanism.Moreover,we put forward prospects in the development directions.

关 键 词：Y分子筛 固体核磁共振 结构 酸性特征 催化反应机理 

分 类 号：O643.36[理学—物理化学] O482.53[理学—化学]