| Literature DB >> 20586422 |
Sergey Dubin1, Scott Gilje, Kan Wang, Vincent C Tung, Kitty Cha, Anthony S Hall, Jabari Farrar, Rupal Varshneya, Yang Yang, Richard B Kaner.
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 presence of graphitic stacking of reduced sheets. SRGO sheets are redispersible in a variety of organic solvents, which may hold promise as an acceptor material for bulk heterojunction photovoltaic cells, or electromagnetic interference shielding applications.Entities:
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Year: 2010 PMID： 20586422 PMCID： PMC3939021 DOI： 10.1021/nn100511a
Source DB: PubMed Journal: ACS Nano ISSN： 1936-0851 Impact factor: 15.881