期刊
CHEMICAL SCIENCE
卷 12, 期 23, 页码 8048-8057出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1sc00898f
关键词
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资金
- University of Bologna
- University of Modena and Reggio Emilia
- Universita Politecnica delle Marche
- Universita di Padova
- United States National Science Foundation [CHE-1149096]
- Department of Energy [DE-FG02-93ER14359]
- Italian Ministero dell'Istruzione, Universita e Ricerca - MIUR
- INSTM
- U.S. Department of Energy (DOE) [DE-FG02-93ER14359] Funding Source: U.S. Department of Energy (DOE)
The presence of non-hexagonal rings in graphene leads to rippled graphene layers with valuable properties. An electrochemical method using corannulene polycondensation can produce egg-box shaped nanographene structures, demonstrating wavy graphene-like structures with conducting properties.
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.
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