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Author Panatarani, C. ♦ Muthahhari, N. ♦ Joni, I. Made ♦ Rianto, Anton
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ ABSORPTION SPECTROSCOPY ♦ CARBON OXIDES ♦ CLATHRATES ♦ CRYSTAL STRUCTURE ♦ CRYSTALS ♦ GRAPHENE ♦ GRAPHITE ♦ INFRARED SPECTRA ♦ MANGANESE NITRATES ♦ OXIDATION ♦ POTASSIUM COMPOUNDS ♦ PURIFICATION ♦ SULFURIC ACID ♦ X-RAY DIFFRACTION ♦ X-RAY SPECTROSCOPY
Abstract Graphite oxide has attracted much interest as a possible route for preparation of natural graphite in the large-scale production and manipulation of graphene as a material with extraordinary electronic properties. Graphite oxide was prepared by modified Hummers method from purified natural graphite sample from West Kalimantan. We demonstrated that natural graphite is well-purified by acid leaching method. The purified graphite was proceed for intercalating process by modifying Hummers method. The modification is on the reaction time and temperature of the intercalation process. The materials used in the intercalating process are H{sub 2}SO{sub 4} and KMNO{sub 4}. The purified natural graphite is analyzed by carbon content based on Loss on Ignition test. The thermo gravimetricanalysis and the Fouriertransform infrared spectroscopy are performed to investigate the oxidation results of the obtained GO which is indicated by the existence of functional groups. In addition, the X-ray diffraction and energy dispersive X-ray spectroscopy are also applied to characterize respectively for the crystal structure and elemental analysis. The results confirmed that natural graphite samples with 68% carbon content was purified into 97.68 % carbon content. While the intercalation process formed a formation of functional groups in the obtained GO. The results show that the temperature and reaction times have improved the efficiency of the oxidation process. It is concluded that these method could be considered as an important route for large-scale production of graphene.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-03-11
Publisher Place United States
Volume Number 1719
Issue Number 1


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