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O: Fachverband Oberflächenphysik

O 33: Graphene: Growth, structure and substrate interaction (joint session O/HL)

O 33.1: Hauptvortrag

Dienstag, 10. März 2026, 10:30–11:00, HSZ/0201

During-synthesis functionalization of graphene layers — •Cristina Africh — CNR-IOM, Trieste, Italy

Introducing heteroatoms into graphene is a powerful way to modulate its catalytic, electronic, and magnetic properties. During the last decade, we developed a clean and scalable functionalization strategy that exploits the sponge-like properties of nickel substrates as well as the catalytic role played by transition metal (TM) single atoms at graphene edges during Chemical Vapor Deposition synthesis [1]. Following this route, it is possible to grow N-doped, B-doped and TM-doped graphene as well as co-doped layers [2,3,4]. The potential of the functionalized networks for sensing and, as a perspective, for catalysis, was evaluated by monitoring their response upon gas exposure [5,6].

[1] C. Africh, M. Peressi and G. Comelli, Surf. Sci. 753, 122652 (2025). [2] S. Fiori et al., Carbon 171, 704-710 (2021). [3] S. Patil et al., Surf. Interfaces 51, 104700 (2024). [4] V. Chesnyak et al., Sci. Adv. 10, eado8956 (2024). [5] D. Perilli, S. Fiori et al., J. Phys. Chem. Lett. 11 8887-8892 (2020). [6] D. Perilli, V. Chesnyak et al., Angew. Chem. Int. Ed. 64, e202421757 (2025).

Keywords: graphene; doping; sensing; transition metal; catalysis