Synthesis of Nitrogen-Doped Graphene via Thermal Treatment of Graphene Oxide within Methylimidazole and its Capacitance Performance as Electric Double Layer Capacitor
Md. Monirul Islam1, Shaikh Nayeem Faisal2, Anup Kumar Roy2, Sonia Ansari2, Dean Cardillo1, Konstantin Konstantinov1 and Enamul Haque2*
Affiliation
- 1Institute for Super conducting and Electronic Materials, University of Wollongong, NSW, Australia
- 2School of Chemical & Biomolecular Engineering, The University of Sydney, NSW, Australia
Corresponding Author
Haque E, School of Chemical & Biomolecular Engineering, The University of Sydney, NSW 2006, Australia, Tel: +61416747914; E-mail: enamul.haque@sydney.edu.au
Citation
Haque, E., et al. Synthesis of Nitrogen-Doped Graphene via Thermal Treatment of Graphene Oxide within Methylimidazole and its Capacitance Performance as Electric Double Layer Capacitor. (2015) J Nanotech Mater Sci 2(1) : 1- 5.
Copy rights
© 2015 Haque. E. This is an Open access article distributed under the terms of Creative Commons Attribution 4.0 International License.
Keywords
Abstract
Nitrogen-doped graphene was successfully synthesised from graphene oxide (GO) and 2-methylimidazole composite via thermal treatment under argon flow at 700°C within 1h. This synthesised N-doped graphene exhibits homogeneous nitrogen doping with concentration of ~5% in three different nitrogen configuration namelypyridinic N, pyrrolic N and graphitic N. The electric double layer capacitor (EDLC) made up with this N-doped graphene showed excellent specific capacitance 274 F/g at current density of 1A/g, which was ~7 times higher than GO. This EDLC capacitor showed excellent cyclic stability up to 5000 cycles with capacity retention of ~91%.
