Characterization of Graphene Sheets Formed by the Reaction of Carbon Monoxide with Aluminum Sulfide
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- Characterization of Graphene Sheets Formed by the Reaction of Carbon Monoxide with Aluminum Sulfide
- Yoon, Ilsun; Kim, Chang-Duk; Min, Bong-Ki; Kim, Young-Ki; Kim, Bongsoo; Jung, Woo-Sik
- Issue Date
- KOREAN CHEMICAL SOC
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.30, no.12, pp.3045 - 3048
- Graphene sheets formed by the reaction of carbon monoxide (CO) with aluminum sulfide (Al(2)S(3)) at reaction temperatures >= 800 degrees C were characterized by X-ray diffraction (XRD), Raman spectroscopy, and high-resolution transmission electron microscopy (HRTEM). The graphene sheets, formed as CO was reduced to gaseous carbon by the reaction with Al(2)S(3), in the temperature range 800 - 1100 degrees C, did not exhibit their characteristic XRD peaks because of the small number of graphene layers and/or low crystallinity of graphene sheets. Raman spectra of graphene sheets showed that the intensity ratio of the D band to the G band decreased and the 2D band was shifted to higher frequencies with increasing reaction temperature, indicating that the number of graphene layers increased with increasing reaction temperature.
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