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Nanoscale Control of Homoepitaxial Growth on a Two‐Dimensional Zeolite |
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| Authors: | 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 Prof Michael Tsapatsis |
| Institution: | 1. Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN, 55455 USA;2. Department of Chemical and Biomolecular Engineering, University of Houston, 4726 Calhoun Road, Houston, TX, 77204-4004 USA;3. Department of Chemical Engineering, Ankara University, Ankara, 06100 Turkey;4. Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, IL, 60439 USA;5. Department of Physics, Augsburg College, 2211 Riverside Avenue, Minneapolis, MN, 55454 USA;6. Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589 Saudi Arabia |
| Abstract: | 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. |
| Keywords: | Kristall-Engineering Kristallwachstum Nanotechnologie Zeolithe Zweidimensionale Materialien |