高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (1): 239-247.doi: 10.7503/cjcu20200606

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HZSM-5分子筛中邻近酸中心上的协同催化作用

於霞, 宋晨海, 郭向可, 薛念华(), 丁维平   

  1. 南京大学化学化工学院, 介观化学教育部重点实验室, 南京 210023
  • 收稿日期:2020-08-27 出版日期:2021-01-10 发布日期:2021-01-12
  • 通讯作者: 薛念华 E-mail:nianhua@nju.edu.cn
  • 基金资助:
    国家自然科学基金(批准号(21872067);21773110)资助

Cooperative Catalysis of Adjacent Acid Sites in Zeolite HZSM-5

YU Xia, SONG Chenhai, GUO Xiangke, XUE Nianhua(), DING Weiping   

  1. Key Lab of Mesoscopic Chemistry,School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210093,China
  • Received:2020-08-27 Online:2021-01-10 Published:2021-01-12
  • Contact: XUE Nianhua E-mail:nianhua@nju.edu.cn
  • Supported by:
    ? Supported by the National Natural Science Foundation of China(21872067)

摘要:

总结了HZSM-5分子筛中邻近的酸中心协同催化作用的研究进展, 包括布朗斯特酸(B酸)和路易斯酸 (L酸)的协同催化、 B酸和B酸的协同催化作用. 综述了通过多种表征手段下协同催化作用机理的研究进展, 以及实验与理论计算相结合并相互验证的研究结果, 对邻近酸中心协同作用下反应分子的共同吸附、 活化与转化路径的特点进行了分析与总结, 提出了对邻近酸中心协同催化作用进行深入研究的关键科学问题和可能的解决方案.

关键词: HZSM-5分子筛, 路易斯酸中心, 布朗斯特酸中心, 共同吸附, 协同催化

Abstract:

Recent advances in cooperative catalysis from adjacent acid sites in zeolite HZSM-5 is summarized in this review. The cooperativity is from the Br?nsted acid site and the Lewis acid site as well as from adjacent Br?nsted acid sites. Kinds of characterization are described for molecular adsorption, activation and transformation together with catalysis performance. The theoretical calculation is also performed to prove the cooperative catalysis. The challenge of studying the new facile pathway of cooperative catalysis is also raised up, and accurate measuring the distance of two acid sites and quantifing the amount of adjacent acid sites are pursued as well.

Key words: HZSM-5 zeolite, Lewis acid site, Br?nsted acid site, Cooperative adsorption, Cooperative catalysis

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