A One-Step, Solvothermal Reduction Method for Producing Reduced Graphene Oxide Dispersions in Organic Solvents
California NanoSystems Institute · University of California, Los Angeles · +1 more institution
Abstract
Refluxing graphene oxide (GO) in N-methyl-2-pyrrolidinone (NMP) results in deoxygenation and reduction to yield a stable colloidal dispersion. The solvothermal reduction is accompanied by a color change from light brown to black. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) images of the product confirm the presence of single sheets of the solvothermally reduced graphene oxide (SRGO). X-ray photoelectron spectroscopy (XPS) of SRGO indicates a significant increase in intensity of the C=C bond character, while the oxygen content decreases markedly after the reduction is complete. X-ray diffraction analysis of SRGO shows a single broad peak at 26.24 degrees 2theta (3.4 A), confirming the…
Citation impact
- FWCI
- 21.29
- Percentile
- 100%
- References
- 49
Authors
10- SDSergey DubinCorresponding
California NanoSystems Institute, University of California, Los Angeles
- SGScott Gilje
Northrop Grumman (United States)
- KWKan Wang
California NanoSystems Institute, University of California, Los Angeles
- VTVincent Tung
University of California, Los Angeles, California NanoSystems Institute
- KCKitty Cha
California NanoSystems Institute, University of California, Los Angeles
Topics & keywords
- Graphene
- Deoxygenation
- Oxide
- X-ray photoelectron spectroscopy
- Materials science
- Scanning electron microscope
- Chemical engineering
- Stacking