高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (8): 2529.doi: 10.7503/cjcu20210134

• 物理化学 • 上一篇    下一篇

等级孔介孔-微孔TS-1分子筛单晶的合成及催化氯丙烯环氧化性能

张旭1, 阙家乾1, 侯月新1, 吕佳敏1, 刘湛1, 雷坤皓1, 余申1, 李小云2, 陈丽华1(), 苏宝连1()   

  1. 1.武汉理工大学材料复合新技术国家重点实验室, 2. 硅酸盐建筑材料国家重点实验室, 武汉 430070
    3.那慕尔大学无机材料化学实验室, 那慕尔B? 5000, 比利时
  • 收稿日期:2021-03-01 出版日期:2021-08-10 发布日期:2021-08-05
  • 通讯作者: 陈丽华 E-mail:chenlihua@whut.edu.cn;bao-lian.su@unamur.be
  • 作者简介:苏宝连, 男, 博士, 教授, 主要从事仿生等级孔及生命复合材料方面的研究, E-mail: bao-lian.su@unamur.be
  • 基金资助:
    国家自然科学基金(21805216)

Hierarchical Mesoporous-microporous TS-1 Single Crystal Catalysts for Epoxidation of Allyl Chloride

ZHANG Xu1, QUE Jiaqian1, HOU Yuexin1, LYU Jiamin1, LIU Zhan1, LEI Kunhao1, YU Shen1, LI Xiaoyun2, CHEN Lihua1(), SU Baolian1()   

  1. 1.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
    2.State Key Laboratory of Silicate Material for Architectures,Wuhan University of Technology,Wuhan 430070,China
  • Received:2021-03-01 Online:2021-08-10 Published:2021-08-05
  • Contact: CHEN Lihua E-mail:chenlihua@whut.edu.cn;bao-lian.su@unamur.be
  • Supported by:
    the National Natural Science Foundation of China(21805216)

摘要:

针对当前钛硅型分子筛存在的微孔孔道孔径限制导致的流通扩散性能差及催化效率低等关键瓶颈问题, 通过在微孔分子筛中构筑跨尺度贯通高物质传输性能的等级孔道结构, 对钛硅分子筛(TS-1)晶体内等级孔道结构的可控构筑及其催化环氧化进行了研究, 成功制备出具有富含介孔孔道的等级孔介孔-微孔TS-1分子筛单晶材料(HTS-1), 其在氯丙烯催化环氧化反应中表现出了优异的催化活性及稳定性能.

关键词: 分子筛, 等级孔, 介孔-微孔, 钛硅分子筛TS-1, 催化环氧化

Abstract:

Epoxidation catalytic technology is important for preparing organic chemical raw materials and fine chemical products. But it has drawbacks such as low catalytic efficiency and serious pollution problem. The key to realize sustainable energy development is to develop green epoxidation catalytic techniques. Selective oxidation over titanosilicate zeolite TS-1 is the key to achieve green epoxidation process. Aiming at solving the intracrystalline diffusion limitations in microporous zeolites caused by their relatively small micropores, this paper focuses on design and synthesis of hierarchically mesoporous zeolite TS-1 single crystals, investigation and development of the synthesis methods, and the influence of hierarchically meso-microporous hierarchy on the catalytic epoxidation of allyl chloride performances. Compared with microporous zeolite TS-1, the hierarchically mesoporous zeolite TS-1 has better catalytic activity.

Key words: Zeolite, Hierarchically porous structure, Meso-microporous, TS-1, Catalytic epoxidation

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