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Synthesis of graphene oxide nanosheets via modified hummers’ method and its physicochemical properties

Hanifah, Mohamad Fahrul Radzi and Jaafar, Juhana and Abd. Aziz, Madzlan and Ismail, Ahmad Fauzi and Rahman, Mukhlis A. and Othman, Mohd. Hafiz Dzarfan (2015) Synthesis of graphene oxide nanosheets via modified hummers’ method and its physicochemical properties. Jurnal Teknologi, 74 (1). pp. 195-198. ISSN 0127-9696

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Official URL: http://dx.doi.org/10.11113/jt.v74.3555

Abstract

The efficient synthesis of exfoliated graphene oxide nanosheets (GO) via modified Hummers’ method was successfully carried out. The physicochemical properties of GO were determined by Fourier transform infrared spectroscopy (FTIR), UV-visible spectrophotometry (UV-vis), x-ray diffraction analysis (XRD), Raman spectroscopy, and transmission electron microscopy (TEM). The graphite was fully oxidized by strong oxidizing agent caused the oxygen-containing functional groups such as C-O-C, C=O, and COOH were introduced into the graphite layers as analyzed by Raman and FTIR. XRD pattern of GO showed 2? of 12.0° with interlayer spacing ~ 7.37A which describe non uniform crystal structure with the addition of oxygen containing functional groups. UV-vis spectrum of GO exhibit maximum absorption peak at ~ 234 nm corresponding to the aromatic C=C bond with p-p* transition. The morphology of GO was observed to have flake-like shape and less transparent layers by TEM. The properties of synthesized GO suggest high potential in producing the high quality of graphene which is can be applied as the electrocatalyst support for direct methanol fuel cell application.

Item Type:Article
Uncontrolled Keywords:chemical oxidation, graphene oxide nanosheets
Subjects:T Technology > T Technology (General)
Divisions:Petroleum and Renewable Energy Engineering
ID Code:55606
Deposited By: Muhamad Idham Sulong
Deposited On:22 Sep 2016 01:27
Last Modified:01 Nov 2017 04:17

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