Chemical Research in Chinese Universities ›› 2024, Vol. 40 ›› Issue (6): 1245-1255.doi: 10.1007/s40242-024-4099-0

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Rapid Synthesis of Boron-MWW Zeolite Through a Solvent-free Strategy

BO Shuang1, WANG Tianlong1, LV Tianming2, WU Huifang1, FENG Ziyi1, MIAO Lei1, FENG Zhaochi3, REN Limin1, MENG Changgong1,4   

  1. 1. State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China;
    2 Instrumental Analysis Center, Dalian University of Technology, Dalian 116024, P. R. China;
    3. State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China;
    4. College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, P. R. China
  • Received:2024-04-17 Online:2024-12-01 Published:2024-10-26
  • Contact: MENG Changgong,cgmeng@dlut.edu.cn;REN Limin,lren@dlut.edu.cn E-mail:cgmeng@dlut.edu.cn;lren@dlut.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos.22002012, 22372020) and the Fund of the State Key Laboratory of Catalysis in DICP, China (No.N-21-02).

Abstract: ERB-1 zeolite emerges as a key bridging material for crafting heteroatom-containing MWW for versatile catalytic applications. In this study, we developed a solvent-free strategy facilitated by high-temperature condition and seed assistance, streamlining the synthesis of ERB-1 zeolite. This novel approach not only significantly reduces the growth time to 12 h compared to the conventional 168-h hydrothermal synthesis but also enhances product yield while minimizing waste generation. Benefiting from the platelet seeds and the grinding force, a distinct non-classical growth pathway, involving nanoparticle attachment, epitaxial growth, anisotropic assembly, and crystallization, was observed in the solvent-free synthesis. Through heteroatom substitution, pillared Sn-MWW was successfully prepared, exhibiting remarkable stability and catalytic performance in the Bayer-Villiger oxidation reaction of 2-adamantanone. Our findings present a simple and cost-effective way for rapid synthesis of MWW zeolite, with implications extending to diverse catalytic applications.

Key words: Solvent-free strategy, ERB-1, Pillared Sn-MWW, Baeyer-Villiger oxidation