化工进展 ›› 2024, Vol. 43 ›› Issue (8): 4382-4392.DOI: 10.16085/j.issn.1000-6613.2023-1140

• 工业催化 • 上一篇    

链状MFI型分子筛的合成与应用

张叶素1,2(), 权燕红1,2(), 丁欣欣1,2, 任军1,2()   

  1. 1.太原理工大学省部共建煤基能源清洁高效利用国家重点实验室,山西 太原 030024
    2.太原理工大学化学工程与技术学院,山西 太原 030024
  • 收稿日期:2023-07-07 修回日期:2024-01-14 出版日期:2024-08-15 发布日期:2024-09-02
  • 通讯作者: 权燕红,任军
  • 作者简介:张叶素(1999—),女,硕士研究生,研究方向为一碳化学与化工。E-mail: 946463348@qq.com
  • 基金资助:
    国家自然科学基金(22108191);中国博士后科学基金(2022M712335)

Synthesis and application of chainlike MFI type zeolites

ZHANG Yesu1,2(), QUAN Yanhong1,2(), DING Xinxin1,2, REN Jun1,2()   

  1. 1.State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
    2.College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
  • Received:2023-07-07 Revised:2024-01-14 Online:2024-08-15 Published:2024-09-02
  • Contact: QUAN Yanhong, REN Jun

摘要:

链状MFI型分子筛是由大小均一的晶粒沿b轴方向通过表面羟基缩合而成,在保留传统分子筛独特的三维孔道结构、耐酸性、水热稳定性、高催化活性的同时,具有较高的孔道择形性,在吸附、分离、催化等领域展现出独特的性能。本文系统介绍了链状MFI型分子筛合成及其应用领域的最新研究进展,重点综述了常规水热合成与微波辅助水热合成两种方法,深入分析了链状MFI型分子筛的形成机理,对诱导表面羟基缩合的各种因素进行了详细阐述,总结了其在物理吸附及催化方面的优异性能。最后对链状MFI型分子筛的绿色合成及潜在应用进行了展望,提出硅配位环境的动态变化过程分析对于揭示其合成机理至关重要,将为拓展链状MFI型分子筛的应用奠定重要理论基础。

关键词: 链状, MFI型分子筛, 合成, 催化

Abstract:

Chainlike MFI type zeolites were formed by the condensation of uniformly sized crystals along the b-axis direction through surface hydroxyl groups, which not only maintianed traditional zeolites' unique three-dimensional pore structure, acid resistance, hydrothermal stability, and high catalytic activity, but also showed higher shape selectivity, endowing them with unique properties in many fields such as adsorption, separation and catalysis. This paper systematically presented the current research development on the synthesis of chainlike MFI type zeolites and their application, focusing on the two synthesis methods of conventional hydrothermal and microwave-assisted hydrothermal synthesis. In addition, it analyzed the formation mechanism of chainlike MFI type zeolites in depth, elaborated on the various factors inducing the condensation of Si—OH groups, and then concluded the excellent catalytic and adsorptive performance of chainlike MFI type zeolites. Finally, an outlook on the green synthesis and potential application about chainlike MFI type zeolites was given, and the analysis on the evolution of silicon coordination environment was proposed as an important direction for further exploring their synthesis mechanism, which would lay an essential theoretical foundation for expanding the application of chainlike MFI type zeolites in the future.

Key words: chainlike morphology, MFI type zeolites, synthesis, catalysis

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