One Pot Synthesis of Graphene by Exfoliation of Graphite in ODCB

Sumanta Sahoo, Goutam Hatui, Pallab Bhattacharya, Saptarshi Dhibar, Chapal Kumar Das

Materials Science Centre, Indian Institute of Technology, Kharagpur, India.

DOI: 10.4236/graphene.2013.21006                

Abstract

Graphene, an extraordinary allotropy of carbon, the 2D nanosheet, have been synthesized through exfoliation of graphite in ortho dichloro benzene by sonication. The morphological changes in different interval of sonication have been investigated by Scanning Electron Microscopy (SEM) andTransmission Electron Microscopy (TEM). Raman Spectra confirmed the formation of defect free Graphene sheets. As prepared Graphene showed high thermal stability under N₂ atmosphere. It has been observed that sonication for 4 hours, effectively exfoliates graphite to form Graphene sheets. However, further sonication leads to restacking of Graphene sheets. The formation of Graphene is supposed to be due to the Sonopolymerization of the solvent (ortho-dichloro benzene)and graphite solvent interaction.

Keywords

Graphene; Graphite; Ortho-Dichloro Benzene; Sonication; Raman Spectra

Conflicts of Interest

The authors declare no conflicts of interest.

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