Nanoscale Control of Homoepitaxial Growth on a Two-Dimensional Zeolite
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- 作者：Meera Shete ; Manjesh Kumar ; Dr. Donghun Kim ; Neel Rangnekar ; Dandan Xu ; Prof. Berna Topuz ; Dr. Kumar Varoon Agrawal ; Evguenia Karapetrova ; Prof. Benjamin Stottrup ; Prof. Shaeel Al-Thabaiti ; Prof. Sulaiman Basahel ; Dr. Katabathini Narasimharao ; Prof. Jeffrey D. Rimer and Prof. Michael Tsapatsis
- 刊名：Angewandte Chemie International Edition
- 出版年：2017
- 出版时间：January 9, 2017
- 年：2017
- 卷：56
- 期：2
- 页码：535-539
- 全文大小：3405K
- ISSN：1521-3773
文摘
Nanoscale crystal growth control is crucial for tailoring two-dimensional (2D) zeolites (crystallites with thickness less than two unit cells) and thicker zeolite nanosheets for applications in separation membranes and as hierarchical catalysts. However, methods to control zeolite crystal growth with nanometer precision are still in their infancy. Herein, we report solution-based growth conditions leading to anisotropic epitaxial growth of 2D zeolites with rates as low as few nanometers per day. Contributions from misoriented surface nucleation and rotational intergrowths are eliminated. Growth monitoring at the single-unit-cell level reveals novel nanoscale crystal-growth phenomena associated with the lateral size and surface curvature of 2D zeolites.