Open, sesame! Graphene nanoribbons (GNRs) with smooth edges and controllable widths are crucial for graphene electronic and spintronic applications. High-quality narrow GNRs can be synthesized from single-walled carbon nanotubes at 200-300 °C using a Cu-atom catalyst, which dramatically reduces the
Graphene nanoribbons produced by the oxidative unzipping of single-wall carbon nanotubes
✍ Scribed by Franco Cataldo; Giuseppe Compagnini; Giacomo Patané; Ornella Ursini; Giancarlo Angelini; Primoz Rebernik Ribic; Giorgio Margaritondo; Antonio Cricenti; Giuseppe Palleschi; Federica Valentini
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 654 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0008-6223
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✦ Synopsis
Graphene nanoribbons were synthesized by oxidative unzipping of single-wall carbon nanotubes (SWCNTs). The nanoribbons produced from SWCNTs were characterized using FT-IR, Raman and X-ray photoelectron spectroscopy. For the morphological study of the product obtained from the SWCNT unzipping reaction, transmission electron microscopy and atomic force microscopy were used, confirming the typical graphene nanoribbon structure.
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Isolated single-wall carbon nanotubes (SWNT) were grown by disproportionation of carbon monoxide at 1200°C, catalyzed by molybdenum particles a few nanometers in size. The tube diameters, ranging from 1 to 5 nm, closely correlated with the size of the catalytic particle found attached to the tube en