Microwave synthesis of large few-layer graphene sheets in aqueous solution of ammonia
By I. Janowska, K. Chizari, O. Ersen, S. Zafeiratos, D. Soubane, V. D. Costa, Virginie Speisser, C. Boeglin, M. Houllé, D. Bégin and 3 more. 2010
137 citations recorded by the source corpus.
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.
Subfields: Biomedical Engineering, Electrical and Electronic Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/16542a8493096639c0cecde4ac0b0753bc4c856b
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Citations in the corpus
- Facile production of ultrathin graphitic carbon nitride nanoplatelets for efficient visible-light water splitting (2015, background): “With the recent discovery of graphene [6, 7], delaminating two-dimensional (2D) layered materials such as hexagonal boron nitride, MoS2, and WS2 bulk particles into the corresponding nanosheets has induced intriguing photoelectrochemical properties, including giant charge carrier mobility, high spec”
- Efficient and large-scale synthesis of few-layered graphene using an arc-discharge method and conductivity studies of the resulting films (2010, methodology): “Recently, new methods have been employed to prepare graphene sheets with one, two or more layers, such as arc-discharge techniques [18–20], chemical vapor deposition [21–23], microwave irradiation [24], solvothermal-assisted exfoliation [25] and bottom-up methods [26].”