Functionalization of reduced graphite oxide sheets with a zwitterionic surfactant
ChemPhysChem, ISSN: 1439-4235, Vol: 13, Issue: 16, Page: 3682-3690
2012
- 33Citations
- 30Captures
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Metrics Details
- Citations33
- Citation Indexes32
- CrossRef32
- 32
- Patent Family Citations1
- 1
- Captures30
- Readers30
- 30
Article Description
Films of a few layers in thickness of reduced graphite oxide (RGO) sheets functionalized by the zwitterionic surfactant N-dodecyl-N,N-dimethyl-3-ammonio- 1-propanesulfonate (DDPS) are obtained by using the Langmuir-Blodgett method. The quality of the RGO sheets is checked by analyzing the degrees of reduction and defect repair by means of X-ray photoelectron spectroscopy, atomic force microscopy (AFM), field-emission scanning electron microscopy (SEM), micro-Raman spectroscopy, and electrical conductivity measurements. A modified Hummers method is used to obtain highly oxidized graphite oxide (GO) together with a centrifugation-based method to improve the quality of GO. The GO samples are reduced by hydrazine or vitamin C. Functionalization of RGO with the zwitterionic surfactant improves the degrees of reduction and defect repair of the two reducing agents and significantly increases the electrical conductivity of paperlike films compared with those prepared from unfunctionalized RGO. © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Bibliographic Details
Wiley
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