Fast Exfoliation and Functionalisation of Two-Dimensional Crystalline Carbon Nitride by Framework Charging

Jingjing Jia; Edward R White; Adam J Clancy; Noelia Rubio; Theo Suter; Thomas S Miller; Kit McColl; Paul F McMillan; Veronika Brázdová; Furio Corà; Christopher A Howard; Robert V Law; Cecilia Mattevi; Milo S P Shaffer

doi:10.1002/anie.201800875

Fast Exfoliation and Functionalisation of Two-Dimensional Crystalline Carbon Nitride by Framework Charging

Angew Chem Int Ed Engl. 2018 Sep 24;57(39):12656-12660. doi: 10.1002/anie.201800875. Epub 2018 Aug 29.

Authors

Affiliations

¹ Dept. Chemistry, Imperial College London, London, SW7 2AZ, UK.
² Current address: Dept. Materials, University of Science and Technology Beijing, Beijing, 100083, China.
³ Dept. Chemistry, University College London, London, WC1H 0AJ, UK.
⁴ Dept. Physics and Astronomy, University College London, London, WC1E 6BT, UK.
⁵ Dept. Materials, Imperial College London, London, SW7 2AZ, UK.

PMID: 30095209
DOI: 10.1002/anie.201800875

Abstract

Two-dimensional (2D) layered graphitic carbon nitride (gCN) nanosheets offer intriguing electronic and chemical properties. However, the exfoliation and functionalisation of gCN for specific applications remain challenging. We report a scalable one-pot reductive method to produce solutions of single- and few-layer 2D gCN nanosheets with excellent stability in a high mass yield (35 %) from polytriazine imide. High-resolution imaging confirmed the intact crystalline structure and identified an AB stacking for gCN layers. The charge allows deliberate organic functionalisation of dissolved gCN, providing a general route to adjust their properties.

Keywords: N-doped graphene; carbon nitride; exfoliation; functionalization; transmission electron microscopy.

Abstract

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