Jump to main content
Jump to site search

Issue 2, 2018
Previous Article Next Article

Growth of high-quality covalent organic framework nanosheets at the interface of two miscible organic solvents

Author affiliations

Abstract

Stronger covalent bonds between monomers, relatively more complex growth processes (polymerization, crystallization, assembly, etc.) and π–π stacking interactions between adjacent layers make it extremely difficult to obtain highly ordered crystalline 2D covalent organic framework (COF) nanosheets. So more effective solutions have to be developed to push the methods reported so far beyond their inherent limitations. Herein, we report the first example of growing high-quality 2D COF nanosheets (NS-COF) at the interface of two miscible organic solvents. The novel approach, which is named as a buffering interlayer interface (BII) method, can be achieved by simply adding a low-density solvent interlayer, as a buffer layer, between the two miscible main solvents based on the self-propelled directed motion of the interface driven by the density differences among the solvents involved. The as-synthesized NS-COF exhibits a super-large size and a relatively regular shape with a smooth surface, which have not been observed before. The proposed strategy offers a facile and effective approach for growing well-structured 2D COF nanosheets and also other kinds of nanosheets.

Graphical abstract: Growth of high-quality covalent organic framework nanosheets at the interface of two miscible organic solvents

Back to tab navigation

Supplementary files

Publication details

The article was received on 24 Oct 2017, accepted on 15 Jan 2018 and first published on 15 Jan 2018


Article type: Communication
DOI: 10.1039/C7NH00172J
Citation: Nanoscale Horiz., 2018,3, 205-212
  •   Request permissions

    Growth of high-quality covalent organic framework nanosheets at the interface of two miscible organic solvents

    Y. Li, M. Zhang, X. Guo, R. Wen, X. Li, X. Li, S. Li and L. Ma, Nanoscale Horiz., 2018, 3, 205
    DOI: 10.1039/C7NH00172J

Search articles by author

Spotlight

Advertisements