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.

Wavy graphene sheets from electrochemical sewing of corannulene / Bruno, Carlo; Ussano, Eleonora; Barucca, Gianni; Vanossi, Davide; Valenti, Giovanni; Jackson, Edward A.; Goldoni, Andrea; Litti, Lucio; Fermani, Simona; Pasquali, Luca; Meneghetti, Moreno; Fontanesi, Claudio; Scott, Lawrence T.; Paolucci, Francesco; Marcaccio, Massimo. - In: CHEMICAL SCIENCE. - ISSN 2041-6520. - 12:23(2021), pp. 8048-8057. [10.1039/D1SC00898F]

Wavy graphene sheets from electrochemical sewing of corannulene

Vanossi, Davide;Pasquali, Luca;Fontanesi, Claudio;Paolucci, Francesco;
2021

Abstract

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.
2021
12
23
8048
8057
Wavy graphene sheets from electrochemical sewing of corannulene / Bruno, Carlo; Ussano, Eleonora; Barucca, Gianni; Vanossi, Davide; Valenti, Giovanni; Jackson, Edward A.; Goldoni, Andrea; Litti, Lucio; Fermani, Simona; Pasquali, Luca; Meneghetti, Moreno; Fontanesi, Claudio; Scott, Lawrence T.; Paolucci, Francesco; Marcaccio, Massimo. - In: CHEMICAL SCIENCE. - ISSN 2041-6520. - 12:23(2021), pp. 8048-8057. [10.1039/D1SC00898F]
Bruno, Carlo; Ussano, Eleonora; Barucca, Gianni; Vanossi, Davide; Valenti, Giovanni; Jackson, Edward A.; Goldoni, Andrea; Litti, Lucio; Fermani, Simon...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1246746
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