Methylamine terminated molecules on Ni(111): A path to low temperature synthesis of nitrogen-doped graphene

Date

2020-11-01

Author

Costantini, Roberto
Toffoli, Hande
Feng, Zhijing
Stredansky, Matus
Toffoli, Daniele
Fronzoni, Giovanna
Dri, Carlo
Comelli, Giovanni
Cvetko, Dean
Kladnik, Gregor
Bavdek, Gregor
Floreano, Luca
Morgante, Alberto
Cossaro, Albano

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The thermal treatment of a monolayer of 1-naphthylmethylamine (NMA) on Ni(1 1 1) surface reveals a complex chemistry promoted by the high surface reactivity. Both the amino-terminated functional group and the naphthalene body of NMA undergo a progressive dehydrogenation, which eventually leads to the coalescence of the molecules. As a result, 2D structures of increasing size are synthesized on the surface, characterized by a graphene-like lattice in which nitrogen atoms are mainly incorporated as pyridinic substitutional defects. In this paper, we show the evidence of the formation of extended nitrogen-doped graphene (N-GR) domains at temperatures as low as 300 degrees C, with band dispersion measurements that reveal p-type doping.

URI

https://hdl.handle.net/11511/70193

Journal

FLATCHEM

DOI

https://doi.org/10.1016/j.flatc.2020.100205

Collections

Department of Physics, Article

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Citation Formats

R. Costantini et al., “Methylamine terminated molecules on Ni(111): A path to low temperature synthesis of nitrogen-doped graphene,” FLATCHEM, pp. 0–0, 2020, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/70193.