Issue 28, 2010

Preparation of graphene by exfoliation of graphite using wet ball milling

Abstract

Wet ball milling was used to exfoliate graphite platelets into graphenes in a liquid medium. Multi-layered graphite nanosheets with a thickness of 30 to 80 nm were dispersed into N,N-dimethylformamide (DMF) and exfoliated by shear-force-dominated ball milling carried out in a planetary mill. After high-speed centrifugation, irregular shaped single- and few-layer graphene sheets (≤3 layers) having a thickness around 0.8–1.8 nm were found from the supernatant. The graphenes were identified and characterized using transmission and scanning electron microscopy, electron diffraction, atomic force microscopy and Raman spectroscopy. The electrical conductivity of the graphene powder was ∼1.2 × 103 S m−1 at room temperature.

Graphical abstract: Preparation of graphene by exfoliation of graphite using wet ball milling

Article information

Article type
Communication
Submitted
07 May 2010
Accepted
03 Jun 2010
First published
17 Jun 2010

J. Mater. Chem., 2010,20, 5817-5819

Preparation of graphene by exfoliation of graphite using wet ball milling

W. Zhao, M. Fang, F. Wu, H. Wu, L. Wang and G. Chen, J. Mater. Chem., 2010, 20, 5817 DOI: 10.1039/C0JM01354D

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