Fast Exfoliation and Functionalisation of Two‐Dimensional Crystalline Carbon Nitride by Framework Charging. Issue 39 (29th August 2018)

• Record Type: Journal Article
• Authors: Jia, Jingjing; White, Edward R.; Clancy, Adam J.; Rubio, Noelia; Suter, Theo; Miller, Thomas S.; McColl, Kit; McMillan, Paul F.; Brázdová, Veronika; Corà, Furio; Howard, Christopher A.; Law, Robert V.; Mattevi, Cecilia; Shaffer, Milo S. P.
• Is Part Of: Angewandte Chemie international edition. Volume 57:Issue 39(2018)
• Page Start: 12656
• Page End: 12660
• Publication Date: 2018-08-29
• Subjects: carbon nitride -- exfoliation -- functionalization -- N-doped graphene -- transmission electron microscopy; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201800875
• Languages: English
• ISSNs: 1433-7851

Abstract

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. Abstract : A scalable one‐pot reductive method produces stable solutions of single‐ and few‐layer two‐dimensional graphitic carbon nitride (gCN) nanosheets in high yield (35 %). Atomic‐resolution imaging confirms an undamaged crystalline structure with AB stacking. The anionic charge provides a versatile route for functionalisation, as illustrated by alkylation.