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Journal of Nanomaterials
Volume 2013 (2013), Article ID 731875, 5 pages
http://dx.doi.org/10.1155/2013/731875
Research Article

Graphite Oxide under High Pressure: A Raman Spectroscopic Study

School of Physics and Information Technology, Ningxia Teachers University, Guyuan, Ningxia 756000, China

Received 19 March 2013; Accepted 23 May 2013

Academic Editor: Raquel Verdejo

Copyright © 2013 Lianqiang Xu and Li Cheng. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We present a Raman-based study on the graphite oxide under high pressure. The graphite oxide is stable under hydrostatic high pressure ambient. By carefully fitting the D, G, and D′ bands which are merged at some extent, we successfully retrieve the information of peak position evolution of G band of graphite oxide under pressure, and it is found that the G band pressure coefficient is very close to that of graphene, and the pressure-induced peak position shift is reversible upon releasing the pressure. The Raman-based high pressure investigation indicates that the graphite oxide possesses good mechanical ductility despite the fact that it is oxygenated by functional groups. This study provides useful fundamental understanding of graphite oxide.