Journal
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
Volume 68, Issue -, Pages 81-86Publisher
ELSEVIER
DOI: 10.1016/j.physe.2014.12.011
Keywords
Reduced graphene oxide (RGO); Hydrothermal; Raman analysis; Mechanism
Funding
- National Natural Science Foundation of China [11104250, 61274099]
- Science Technology Department of Zhejiang Province [2012C21007]
- Zhejiang Provincial Science and Technology Key Innovation Team [2011R50012]
- Zhejiang Provincial Key Laboratory [2013E10022]
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Reduced graphene oxide, RGO (also called chemically modified graphene, CMG) was synthesized by a simple hydrothermal method, with graphite oxide (GO), prepared by the modified Hummers method, served as the raw material. Structural and morphological studies indicate the degree of reduction is dependent on the temperature, which is also verified by Raman analysis. The variation in interlayer distance and the intensity ratio of the D to G Raman modes (I-D/I-G) indicates higher reaction temperature can accelerate the reduction of GO. The conductivity also varies with the degree of reduction, as verified by electrochemical analyzer. Moreover, the reaction process affects organic functional groups, the mechanism during the reaction process is discussed. (C) 2014 Elsevier B.V. All rights reserved.
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