Constructing Hierarchical Porous Zeolites via Kinetic Regulation

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• 作者：Kunlun Ding ; Avelino Corma ; Juan Antonio Maci谩-Agull贸 ; Jerry G. Hu ; Stephan Kr盲mer ; Peter C. Stair ; Galen D. Stucky
• 刊名：Journal of the American Chemical Society
• 出版年：2015
• 出版时间：September 9, 2015
• 年：2015
• 卷：137
• 期：35
• 页码：11238-11241
• 全文大小：350K
• ISSN：1520-5126

文摘

Zeolites are crystalline inorganic solids with microporous structures, having widespread applications in the fields of catalysis, separation, adsorption, microelectronics, and medical diagnosis. A major drawback of zeolites is the mass transfer limitation due to the small size of the micropores (less than 1 nm). Numerous efforts have been dedicated to integrating mesopores with the microporous zeolite structures by using templating and/or destructive approaches. Here we provide a new strategy for hierarchical pore size zeolite synthesis, without using supramolecular or hard templates. The branching epitaxial growth behavior, as a result of aluminum-zoning, contributes to the formation of the hierarchical porous zeolite structures.