期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 3, 页码 724-728出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201710748
关键词
electron microscopy; intergrowth; mesoporous zeolites; tetragonal crystals; 2D square mesostructures
资金
- National Natural Science Foundation of China [21533002, 21471099, 21571128]
- National Key R&D Program of China [2016YFC0205900]
- National Excellent Doctoral Dissertation of PR China [201454]
- Shanghai Rising-Star Program [17QA1401700]
A conceptual design and synthesis of ordered mesoporous zeolites is a challenging research subject in material science. Several seminal articles report that one-dimensional (1D) mesostructured lamellar zeolites are possibly directed by sheet-assembly of surfactants, which collapse after removal of intercalated surfactants. However, except for one example of two-dimensional (2D) hexagonal mesoporous zeolite, no other zeolites with ordered 2D or three-dimensional (3D) mesostructures have been reported. An ordered 2D mesoporous zeolite can be templated by a cylindrical assembly unit with specific interactions in the hydrophobic part. A template molecule with azobenzene in the hydrophobic tail and diquaternary ammonium in the hydrophilic head group directs hierarchical MFI zeolite with a 2D square mesostructure. The material has an elongated octahedral morphology, and quaternary, ordered, straight, square channels framed by MFI thin sheets expanded along the a-c planes and joined with 90 degrees rotations. The structural matching between the cylindrical assembly unit and zeolite framework is crucial for mesostructure construction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据