Nanoscale Control of Homoepitaxial Growth on a Two-Dimensional Zeolite

Meera Shete, Manjesh Kumar, Donghun Kim, Neel Rangnekar, Dandan Xu, Berna Topuz, Kumar Varoon Agrawal, Evguenia Karapetrova, Benjamin Stottrup, Shaeel Al-Thabaiti, Sulaiman Basahel, Katabathini Narasimharao, Jeffrey D. Rimer, Michael Tsapatsis

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)535-539
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number2
StatePublished - Jan 9 2017

Bibliographical note

Funding Information:
This work was mainly supported by the Center for Gas Separations Relevant to Clean Energy Technologies, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Basic Energy Sciences under Award DE-SC000105 (all the ex situ AFM experiments reported and the development of the TEAOH-based growth procedure were fully supported by the above award) and by the Deanship of Scientific Research at the King Abdulaziz University D-003/433 (TPAOH-based growth experiments, initial ex situ AFM experiments, certain LB deposition experiments, and XRD characterization). All in situ AFM experiments were performed at University of Houston and J.D.R. acknowledges financial support from the National Science Foundation (Award No. 1151098) and The Welch Foundation (Award No. E-1794). In-plane grazing incidence synchrotron XRD data was collected on beamline 33-BM-C at the Advanced Photon Source, Argonne National Laboratory supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The LB trough instrumentation purchase and maintenance at the Augsburg College was supported by NSF (DMR 1207544 and CHE 1040126). M.T. acknowledges generous support provided by the Amundson chair fund at the University of Minnesota. Parts of this work were carried out in the Characterization Facility, University of Minnesota and the Minnesota Nano Center (formerly NFC), which receive partial support from the NSF through the MRSEC and NNIN programs, respectively.

Publisher Copyright:
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim


  • crystal engineering
  • crystal growth
  • nanotechnology
  • two-dimensional materials
  • zeolites


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