A Simple and Effective Method for the Preparation of Porous Graphene Nanosheets

Abstract:

Porous graphene is a collection of graphene-related materials which exhibits properties distinct from those of graphene, and it has widespread potential applications in various fields. Several approaches have been developed to produce porous graphene. However, the large-scale production of porous graphene nanosheets still remains a great challenge. Moreover, the costs of some methods are prohibitive for its commercial production and the processes are too complicated and time-consuming. In this work, we propose a simple and green method by which graphene nanosheets can be etched by sodium hydroxide under autogenous pressure at 180 °C. The morphologies and surface elements of the porous graphene nanosheets and sizes of pores were characterized. It is demonstrated that the one-step etching of graphene nanosheets is an effective method to obtain large-scale porous graphene nanosheets with high and uniform porosity. The pores in the porous graphene nanosheets were 6 nm depth (the same as the thickness of the graphene nanosheets) and 30-50 nm width.

• Periodical: Applied Mechanics and Materials (Volumes 719-720)
• Pages: 123-126
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.719-720.123
• Online since: January 2015
• Authors: Jin Sun, Qing Zhong Xue*, Yong Gang Du, Fu Jun Xia, Qi Kai Guo
• Keywords: Carbon Materials, Hydrothermal Treatment, Nanostructured Materials, Porous Materials, Thin Film

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