Microwave synthesis of large few-layer graphene sheets in aqueous solution of ammonia
| Autor: | D. Soubane, Marc-Jacques Ledoux, Dominique Plee, Matthieu Houllé, Ovidiu Ersen, Dominique Begin, Christine Boeglin, Virginie Speisser, Izabela Janowska, Spyridon Zafeiratos, Cuong Pham-Huu, Victor Da Costa, Kambiz Chizari |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Materials science
Aqueous solution Graphene Analytical chemistry Condensed Matter Physics Exfoliation joint Atomic and Molecular Physics and Optics law.invention Materials Science(all) Electron diffraction law Transmission electron microscopy General Materials Science Graphite Electrical and Electronic Engineering Graphene nanoribbons Graphene oxide paper |
| Zdroj: | Nano Research. 3:126-137 |
| ISSN: | 1998-0000 1998-0124 |
| DOI: | 10.1007/s12274-010-1017-1 |
| Popis: | Few-layer graphene (FLG) sheets with sizes exceeding several micrometers have been synthesized by exfoliation of expanded graphite in aqueous solution of ammonia under microwave irradiation, with an overall yield approaching 8 wt.%. Transmission electron microscopy (in bright-field and dark-field modes) together with electron diffraction patterns and atomic force microscopy confirmed that this graphene material consisted mostly of mono-, bi- or few-layer graphene (less than ten layers). The high degree of surface reduction was confirmed by X-ray photoelectron and infrared spectroscopies. In addition, the high stability of the FLG in the liquid medium facilitates the deposition of the graphene material onto several substrates via low-cost solution-phase processing techniques, opening the way to subsequent applications of the material. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink