Synthesis of reduced graphene oxide (rGO) via chemical reduction

Journal Article · Fri May 15 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4915423· OSTI ID:22391742

Thakur, Alpana; Rangra, V. S. ^[1]; Kumar, Sunil ^[2]

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1. Department of Physics, Himachal Pradesh University, Shimla (India)
2. Department of Applied Sciences, Sri Sai University, Palampur (India)

Natural flake Graphite was used as the starting material for the graphene synthesis. In the first step flake graphite was treated with oxidizing agents under vigorous conditions to obtain graphite oxide. Layered graphite oxide decorated with oxygen has large inter-layer distance leading easy exfoliation into single sheets by ultrasonication giving graphene oxide. In the last step exfoliated graphene oxide sheets were reduced slowly with the help of reducing agent to obtain fine powder which is labeled as reduced graphene oxide (rGO). This rGO was further characterized by X-Ray Diffraction (XRD), Scanning Tunneling Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR), Raman Spectroscopy techniques. XRD pattern shows peaks corresponding to (002) graphitic lattice planes indicating the formation of network of sp{sup 2} like carbon structure. SEM images show the ultrathin, wrinkled, paper-like morphology of graphene sheets. IR study shows that the graphite has been oxidized to graphite oxide with the presence of various absorption bands confirming the presence of oxidizing groups. The FTIR spectrum of rGO shows no sharp peaks confirming the efficient reduction of rGO. The Raman spectrum shows disorder in the graphene sheets.

• OSTI ID: 22391742
• Journal Information: AIP Conference Proceedings, Vol. 1661, Issue 1; Conference: ICCMP 2014: International Conference on Condensed Matter Physics 2014, Shimla (India), 4-6 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ABSORPTION SPECTROSCOPY
CARBON OXIDES
FOURIER TRANSFORM SPECTROMETERS
FOURIER TRANSFORMATION
GRAPHENE
GRAPHITE
INFRARED SPECTRA
LAYERS
MORPHOLOGY
OXIDIZERS
OXYGEN
POWDERS
RAMAN SPECTRA
RAMAN SPECTROSCOPY
REDUCTION
SCANNING ELECTRON MICROSCOPY
SCANNING TUNNELING MICROSCOPY
SYNTHESIS
X-RAY DIFFRACTION