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Self-assembly of colloidal single-layer carbon nitride

Stroyuk O, Raievska O, Brabec C, Dzhagan V, Havryliuk Y, Zahn DRT (2022)

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Publication Type: Journal article

Publication year: 2022

Journal

DOI: 10.1039/d2nr03477h

Abstract

We introduce a new concept of a "bottom-to-top" design of intercalate carbon nitride compounds based on the effects of self-assembly of colloidal single-layer carbon nitride (SLCN) sheets stabilized by tetraethylammonium hydroxide NEt4OH upon ambient drying of the water solvent. These effects include (i) formation of stage-1 intercalates of NEt4OH during the ambient drying of SLCN colloids on glass substrates and (ii) the spontaneous formation of layered hexagonally-shaped networks of SLCN sheets on freshly-cleaved mica surfaces. The dynamics of the intercalate formation was followed by in situ X-ray diffraction allowing different stages to be identified, including the deposition of a primary "wet" intercalate of hydrated NEt4OH and the gradual elimination of excessive water during its ambient drying. The intercalated NEt4+ cations show a specific "flattened" conformation allowing the dynamics of formation and structure of the intercalate to be probed by vibrational spectroscopies. The two-dimensional self-assembly on mica is assumed to be driven both by the internal hexagonal symmetry of heptazine units and by a templating effect of the mica surface.

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APA:

Stroyuk, O., Raievska, O., Brabec, C., Dzhagan, V., Havryliuk, Y., & Zahn, D.R.T. (2022). Self-assembly of colloidal single-layer carbon nitride. Nanoscale. https://doi.org/10.1039/d2nr03477h

MLA:

Stroyuk, Oleksandr, et al. "Self-assembly of colloidal single-layer carbon nitride." Nanoscale (2022).

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