Hydrothermal Synthesis of Zeolites with Three-Dimensionally Ordered Mesoporous-Imprinted Structure

被引:257
作者
Chen, Huiyong [2 ,3 ]
Wydra, James [2 ]
Zhang, Xueyi [2 ]
Lee, Pyung-Soo [2 ]
Wang, Zhuopeng [1 ]
Fan, Wei [1 ]
Tsapatsis, Michael [2 ]
机构
[1] Univ Massachusetts, Dept Chem Engn, Amherst, MA 01003 USA
[2] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA
[3] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China
关键词
MICROPOROUS CRYSTALS; GROWTH; BETA; MFI; COMPOSITES; NANOSHEETS; CARBON; ZSM-5;
D O I
10.1021/ja2046815
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Zeolites are microporous materials with pores and channels of molecular dimensions that find numerous applications in catalysis, separations, ion exchange, etc. However, whereas uniformity of micropore size is a most desirable and enabling characteristic for many of their uses, in certain cases, for example in reactions involving bulky molecules, it is a limitation. For this reason, synthesis of hierarchical zeolites with micro- and mesoporosity is of considerable interest as a way to control molecular traffic for improved catalytic and separation performance. Herein, we report a general synthesis route for the confined synthesis of zeolites within three-dimensionally ordered mesoporous carbon templates by conventional hydrothermal synthesis. Various zeolites, including BEA, LTA, FAU, and LTL, with three-dimensionally ordered mesoporous-imprinted structure have been synthesized by this approach. It is expected that these hierarchical zeolite materials will provide building blocks for thin-film and other syntheses and may provide a basis for quantitatively studying the mass-transfer limitation on the catalytic performance of zeolite catalysts.
引用
收藏
页码:12390 / 12393
页数:4
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