Wavy graphene sheets from electrochemical sewing of corannulene
| Autor: | Andrea Goldoni, Moreno Meneghetti, Gianni Barucca, Eleonora Ussano, Massimo Marcaccio, Simona Fermani, Lawrence T. Scott, Claudio Fontanesi, Lucio Litti, Giovanni Valenti, Davide Vanossi, Edward A. Jackson, Carlo Bruno, Francesco Paolucci, Luca Pasquali |
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| Přispěvatelé: | Bruno C., Ussano E., Barucca G., Vanossi D., Valenti G., Jackson E.A., Goldoni A., Litti L., Fermani S., Pasquali L., Meneghetti M., Fontanesi C., Scott L.T., Paolucci F., Marcaccio M. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
radical cation reactivity
Materials science Curved polyaromatic hydrocarbon electron microscopy Graphene oxidation graphene chemistry.chemical_element scanning probe microscopy General Chemistry Electrochemistry law.invention Characterization (materials science) Scanning probe microscopy chemistry.chemical_compound Chemistry Chemical engineering chemistry Polymerization electrochemistry law Corannulene Honeycomb Carbon |
| Zdroj: | Chemical Science |
| Popis: | The presence of non-hexagonal rings in the honeycomb carbon arrangement of graphene produces rippled graphene layers with valuable chemical and physical properties. In principle, a bottom-up approach to introducing distortion from planarity of a graphene sheet can be achieved by careful insertion of curved polyaromatic hydrocarbons during the growth of the lattice. Corannulene, the archetype of such non-planar polyaromatic hydrocarbons, can act as an ideal wrinkling motif in 2D carbon nanostructures. Herein we report an electrochemical bottom-up method to obtain egg-box shaped nanographene structures through a polycondensation of corannulene that produces a new conducting layered material. Characterization of this new polymeric material by electrochemistry, spectroscopy, electron microscopy (SEM and TEM), scanning probe microscopy, and laser desorption-ionization time of flight mass spectrometry provides strong evidence that the anodic polymerization of corannulene, combined with electrochemically induced oxidative cyclodehydrogenations (Scholl reactions), leads to polycorannulene with a wavy graphene-like structure. A bottom-up synthesis of wavy graphene structures obtained through an anodic polymerization process, combined with an electrochemically triggered oxidative cyclodehydrogenation, of the bowl-shaped polyaromatic hydrocarbon corannulene. |
| Databáze: | OpenAIRE |
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