期刊
NANO LETTERS
卷 12, 期 1, 页码 84-90出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl203023k
关键词
Graphene oxide; nanocomposite; dielectrics; electrical conductivity; TEM; thermal reduction
类别
资金
- National Science Foundation [CMMI-0826159]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1132416] Funding Source: National Science Foundation
Graphene consists of a monolayer of sp(2) bonded carbon atoms and has attracted considerable interest over recent years due to its extreme mechanical, electrical, and thermal properties. Graphene nanocomposites have naturally begun to be studied to capitalize upon these properties. A range of complex chemical and physical processing methods have been devised that achieve isolated graphene sheets that attempt to prevent aggregation. Here we demonstrate that the simple casting of a polymer solution containing dispersed graphene oxide, followed by thermal reduction, can produce well-isolated monolayer reduced-graphene oxide. The presence of single layer reduced-graphene oxide is quantitatively demonstrated through transmission electron microscopy and selected area electron diffraction studies and the reduction is verified by thermogravimetric, X-ray photoelectron spectroscopy, infrared spectrum, and electrical conductivity studies. These findings provide a simple, environmentally benign and commercially viable process to produce reduced-graphene oxide reinforced polymers without complex manufacturing, dispersion or reduction processes.
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